Packaged by Turner BMW Maintenance & Tune-Up Parts for BMW 1 Series

E82 128i N51 SULEV, E9X 328i N51 SULEV Auto Cooling Overhaul Package ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:340253

Part#: TMS215325

In Stock

Sale - Save 12% $ 1,280.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 1,122.07 USD

Add to Wish List

Sale - Save 12%

$ 1,280.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 1,122.07 USD

Add to Wish List

This cooling overhaul will cover just about everything you could replace on the 328 SULEV's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N51 328i SULEV. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, all of the 328 SULEV cooling hoses, and the BMW antifreeze. This package fits 128i/328i SULEV with N51 engine and automatic transmission. Some of the components are different for the automatic models because of the auto transmission oil cooler.

The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .

Base Cooling Overhaul Package - Water Pump and Thermostat

(click to expand)

Includes:
+ Genuine BMW electric water pump, p/n 11517586925
+ mounting screws for water pump (set of 3), p/n 11510392553
+ OEM Behr thermostat, p/n 11537549476
+ Original BMW connecting hose from thermostat to water pump, p/n 11537521049
+ OEM-style hose clamps for hose (x 2)

The water pump on the N51 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.

Cooling Hoses

(click to expand)

With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 SULEV water hoses during this job (see diagram):

17127531579, upper radiator hose
17127531581, lower radiator hose
11537613176, water pump to engine
11537534880, gasket for #176 hose
11537545890, thermostat to cylinder head (includes new o-ring)
17117524710, radiator to auto trans cooler
There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).

Expansion Tank Options

(click to expand)

The expansion tank on the 328 SULEV is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.

Coolant Temp Sensors

(click to expand)

There are two coolant temp sensors on the 328 SULEV - in the lower radiator hose and in the cylinder head. Both feed coolant temps to the ECU to regulate the water pump and cooling fan. You should replace the one in the lower radiator hose because it's one of the main sources for coolant leaks, especially when the old sensor is re-used in a new hose. The sensor in the cylinder head is not as prone to leaks and it's easily accessible so you don't have to replace it right away. But we offer it with the package in case you want to have a complete cooling system overahul.
13621433077, coolant temp sensor (in lower radiator hose)
13621433076, coolant temp sensor (in cylinder head, next to oil filter housing)

BUY AS A PACKAGE AND SAVE $$!

This cooling package fits the following BMWs with the N51 engine and an auto transmission:
2008-2012 E82 BMW 128i SULEV
2007-2011 E90 BMW 328i 328xi 328i xDrive SULEV - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive SULEV - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive SULEV - Coupe
2007-2013 E93 BMW 328i SULEV - Convertible
Note: not for cars that have the dealer-installed auxiliary heating option. Some of the hoses are different with that option. It's not a very common option in North America (except in parts of Canada) but there are hoses that are specific to that option.

Click on the options for your kit below and then click "update price" for your kit total.

Show More Show Less

E82 128i, E9X 328i Auto Cooling Overhaul Package

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:340251

Part#: TMS214378

In Stock

Sale - Save 16% $ 621.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 521.53 USD

Add to Wish List

Sale - Save 16%

$ 621.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 521.53 USD

Add to Wish List

This cooling overhaul will cover just about everything you could replace on the 328's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N52 328i. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, all of the 328 cooling hoses, and the BMW antifreeze. This package fits 328i/328xi with N52 engine and automatic transmission. Some of the components are different for the automatic models because of the auto transmission oil cooler.

The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .

Base Cooling Overhaul Package - Water Pump and Thermostat

(click to expand)

Includes:
+ Genuine BMW electric water pump, p/n 11517586925
+ mounting screws for water pump (set of 3), p/n 11510392553
+ OEM Behr thermostat, p/n 11537549476
+ Original BMW connecting hose from thermostat to water pump, p/n 11537521049
+ OEM-style hose clamps for hose (x 2)

The water pump on the N52 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.

Cooling Hoses

(click to expand)

With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 water hoses during this job (see diagram):

17127531579, upper radiator hose
17127564478, lower radiator hose
11537613176, water pump to engine
11537534880, gasket for #176 hose
11537545890, thermostat to cylinder head (includes new o-ring)
17117524710, radiator to auto trans cooler
There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).

Expansion Tank Options

(click to expand)

The expansion tank on the 328 is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.

BUY AS A PACKAGE AND SAVE $$!

This cooling package fits the following BMWs with the N52 engine and an auto transmission:
2008-2012 E82 BMW 128i
2007-2011 E90 BMW 328i 328xi 328i xDrive - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i - Convertible
Note: not for cars that have the dealer-installed auxiliary heating option. Some of the hoses are different with that option. It's not a very common option in North America (except in parts of Canada) but there are hoses that are specific to that option.

Click on the options for your kit below and then click "update price" for your kit total.

Show More Show Less

E82 128i, E9X 328i 6MT Cooling Overhaul Package

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:340252

Part#: TMS214377

In Stock

Sale - Save 14% $ 704.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 606.54 USD

Add to Wish List

Sale - Save 14%

$ 704.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 606.54 USD

Add to Wish List

This cooling overhaul will cover just about everything you could replace on the 328's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N52 328i. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, cooling hoses, and the BMW antifreeze. This package fits 328i/328xi with N52 engine and manual transmission.

The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .

Base Cooling Overhaul Package - Water Pump and Thermostat

(click to expand)

Includes:
+ Genuine BMW electric water pump, p/n 11517586925
+ mounting screws for water pump (set of 3), p/n 11510392553
+ OEM Behr thermostat, p/n 11537549476
+ Original BMW connecting hose from thermostat to water pump, p/n 11537521049
+ OEM-style hose clamps for hose (x 2)

The water pump on the N52 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.

Cooling Hoses

(click to expand)

With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 water hoses during this job (see diagram):

17127531579, upper radiator hose (A)
17127564478, lower radiator hose (B)
11537552396, water pump to engine ©
11537545890, thermostat to cylinder head (includes new o-ring) (D)
There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).

Expansion Tank Options

(click to expand)

The expansion tank on the 328 is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.

BUY AS A PACKAGE AND SAVE $$!

This cooling package fits the following BMWs with the N52 engine and a manual transmission:
2008-2012 E82 BMW 128i
2007-2011 E90 BMW 328i 328xi 328i xDrive - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i - Convertible

Click on the options for your kit below and then click "update price" for your kit total.

Show More Show Less

Manual Transmission Service Kit - E82 1M Coupe

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:31125688

Part#: TMSE821MMTKT

In Stock

$ 98.99 USD

Add to Wish List

Qty

$ 98.99 USD

Add to Wish List

The oil in your manual transmission is extremely vital to the life of your transmission. Over time it will begin to break down, lose viscosity, and begin to allow excess heat and friction. This kit is the perfect remedy to this problem. Included are 2 Liters of Redline DCTF transmission fluid, which is recommended by Redline for this manual transmission and features a fully synthetic base for better protection and wear resistance, and Genuine BMW fill and drain plugs.

Show More Show Less

E82 128i Build Your Own Maintenance Service Package

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:338791

Part#: TMS14348

In Stock

Starting at $ 353.48 USD

Add to Wish List

Starting at $ 353.48 USD

Add to Wish List

Don't buy into the hype that your car is maintenace-free! It was only free during the BMW warranty period, which simply deferred maintenance. Take charge of the care and servicing of your investment and it will reward you in driving pleasure and in your bank account. Using a preventative service schedule will not only keep your BMW running like new, but will also prevent a more costly repair and inconvenience in the future. Not to mention, complete and thorough maintenance records can add hundreds or thousands to a selling price of a used car and give a buyer unmatched piece-of-mind.

Our approach to servicing and caring for newer BMW models is not radically different than when we opened nearly twenty years ago. The design and materials of some components have changed but that only affects WHEN you should replace something, not IF. Through our own Service Department, and thousands of sales annually, we have put together packages for your newer BMW model that will reinject some life into your car and keep it performing at its peak. We use Original Equipment (OE) or Original Equipment Manufacturer (OEM) parts that we have trusted since we opened in 1993. In some cases, we recommend a performance alternative part that we have found works better, or resolves a design flaw, with the original. So you get top quality parts, first-rate service , and unbeatable expertise .

5,000 Mile Oil Service

(click to expand)

engine oil change with filter, using OE BMW 5W30 or Motul
replace drain bolt crush washer
reset oil service/maintenance indicator
inspect and top off any other fluids

Annual Service

(click to expand)

air filter cleaning or replacement
MAF/airflow sensor cleaning
A/C microfilter/cabin filter replacement
brake fluid flush/bleeding
top off power steering fluid (make sure you use the correct Pentosin fluid!)
wiper blade replacement
lubricate door hinges and treat rubber door seals
inspect spare tire or tire repair kit, and tire-changing tools
inspect drive belt for cracking or stretching
inspect intake boots and vacuum lines for cracks
inspect brake system for pad wear, rotor wear, parking brake operation, and brake pedal pressure
inspect bushing and ball joints for excess play/movement
ensure the cooling systems are functioning correctly (hoses and thermostat, thermostat housing, auxiliary fan, A/C system, etc)

40,000 Mile Major Service

(click to expand)

engine oil change with filter, using OE BMW 5W30 or Motul
reset oil service/maintenance indicator
air filter replacement or cleaning for aFe/K&N type
fill and bleed cooling system
manual transmission fluid change, using Red Line ATFD4 or Motul Multi ATF
differential fluid change, using Red Line 75/90 or Motul Gear300
brake fluid flush/bleeding
serpentine belt replacement
inspect belt roller pulleys (drag and rotation) and belt tensioners
complete chassis inspection, including: front control arms, tie rods, ball joints, wheel bearings, rear suspension arm bushings, rear upper shock mounts, rear subframe mounts, axle shaft boots
complete brake system test and inspection
engine and transmission leak detection and diagnosis
shifter linkage, driveshaft guibo, CV, and center support bearing inspection
exhast system inspection, including hanger replacement

80,000 Mile Major Service

(click to expand)

spark plug replacement
ignition coil and coil boot inspection and replacement
engine oil change with filter, using OE BMW 5W30 or Motul
reset oil service/maintenance indicator
air filter replacement or cleaning for aFe/K&N type
fill and bleed cooling system
manual transmission fluid change, using Red Line ATFD4 or Motul Multi ATF
differential fluid change, using Red Line 75/90 or Motul Gear300
brake fluid flush/bleeding
fuel filter, pressure regulator replacement
serpentine belt replacement
replace belt roller pulleys and belt tensioners
complete chassis inspection, including: front control arms, tie rods, ball joints, wheel bearings, rear suspension arm bushings, rear upper shock mounts, rear subframe mounts, axle shaft boots
complete brake system test and inspection
engine and transmission leak detection and diagnosis
shifter linkage, driveshaft guibo, CV, and center support bearing inspection
exhast system inspection, including hanger replacement
water pump and thermostat inspection or replacement. The water pump on this car is electric and will not display warning signs of impending failure. The output of the water pump can be tested however, and your local full-service BMW repair shop should have the diagnostic tools to perform this test.

You may also want to pick up these other helpful items:

Bentley Service Manual (for the E9X but much of it still applies to the E82 1-series)

We offer many DIY-related tools, specifically for the E82/E9X owner -
drain plug sockets, fluid suction and bleeder pumps, spark plug sockets and install guides, oil filter cap adapter, oil funnels, and more!

SprintBooster throttle enhancement
This package fits the following BMWs:
2008-2012 E82 BMW 128i

Put a check in the boxes next to the items you wish to order.

Show More Show Less

E82 1M Build Your Own Maintenance Service Package

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:338795

Part#: TMS14353

In Stock

Starting at $ 102.99 USD

Add to Wish List

Starting at $ 102.99 USD

Add to Wish List

Don't buy into the hype that your car is maintenace-free! It was only free during the BMW warranty period, which simply deferred maintenance. Take charge of the care and servicing of your investment and it will reward you in driving pleasure and in your bank account. Using a preventative service schedule will not only keep your BMW running like new, but will also prevent a more costly repair and inconvenience in the future. Not to mention, complete and thorough maintenance records can add hundreds or thousands to a selling price of a used car and give a buyer unmatched piece-of-mind.

Our approach to servicing and caring for newer BMW models is not radically different than when we opened nearly twenty years ago. The design and materials of some components have changed but that only affects WHEN you should replace something, not IF. Through our own Service Department, and thousands of sales annually, we have put together packages for your newer BMW model that will reinject some life into your car and keep it performing at its peak. We use Original Equipment (OE) or Original Equipment Manufacturer (OEM) parts that we have trusted since we opened in 1993. In some cases, we recommend a performance alternative part that we have found works better, or resolves a design flaw, with the original. So you get top quality parts, first-rate service , and unbeatable expertise .

5,000 Mile Oil Service

(click to expand)

engine oil change with filter, using OE BMW 5W30 or Motul
replace drain bolt crush washer
reset oil service/maintenance indicator
inspect and top off any other fluids

Annual Service

(click to expand)

air filter cleaning or replacement
MAF/airflow sensor cleaning
A/C microfilter/cabin filter replacement
brake fluid flush/bleeding
top off power steering fluid (make sure you use the correct Pentosin fluid!)
wiper blade replacement
lubricate door hinges and treat rubber door seals
inspect spare tire or tire repair kit, and tire-changing tools
inspect drive belt for cracking or stretching
inspect intake boots and vacuum lines for cracks
inspect brake system for pad wear, rotor wear, parking brake operation, and brake pedal pressure
inspect bushing and ball joints for excess play/movement
ensure the cooling systems are functioning correctly (hoses and thermostat, thermostat housing, auxiliary fan, A/C system, etc)

40,000 Mile Major Service

(click to expand)

spark plug replacement
ignition coil and coil boot inspection and replacement
inspect spark plug cavity in valve cover for leaking valve cover gasket
engine oil change with filter, using OE BMW 5W30 or Motul
reset oil service/maintenance indicator
air filter replacement or cleaning for aFe/K&N type
fill and bleed cooling system
manual transmission fluid change, using Genuine BMW MTF-LT-5
differential fluid change, using Red Line 75/140 or Motul GearComp
brake fluid flush/bleeding
serpentine belt replacement
inspect belt roller pulleys (drag and rotation) and belt tensioners
complete chassis inspection, including: front control arms, tie rods, ball joints, wheel bearings, rear suspension arm bushings, rear upper shock mounts, rear subframe mounts, axle shaft boots
complete brake system test and inspection
engine and transmission leak detection and diagnosis
shifter linkage, driveshaft guibo, CV, and center support bearing inspection
exhast system inspection, including hanger replacement

80,000 Mile Major Service

(click to expand)

spark plug replacement
ignition coil and coil boot inspection and replacement
inspect spark plug cavity in valve cover for leaking valve cover gasket
engine oil change with filter, using OE BMW 5W30 or Motul
reset oil service/maintenance indicator
air filter replacement or cleaning for aFe/K&N type
fill and bleed cooling system
manual transmission fluid change, using Genuine BMW MTF-LT-5
differential fluid change, using Red Line 75/140 or Motul GearComp
brake fluid flush/bleeding
fuel filter, pressure regulator replacement
serpentine belt replacement
replace belt roller pulleys and belt tensioners
complete chassis inspection, including: front control arms, tie rods, ball joints, wheel bearings, rear suspension arm bushings, rear upper shock mounts, rear subframe mounts, axle shaft boots
complete brake system test and inspection
engine and transmission leak detection and diagnosis
shifter linkage, driveshaft guibo, CV, and center support bearing inspection
exhast system inspection, including hanger replacement
water pump and thermostat inspection or replacement. The water pump on this car is electric and will not display warning signs of impending failure. The output of the water pump can be tested however, and your local full-service BMW repair shop should have the diagnostic tools to perform this test.

You may also want to pick up these other helpful items:

E90 Bentley Service Manual (not specific to the 1-series but still very helpful)

We offer many DIY-related tools, specifically for the 1M owner -
drain plug sockets, fluid suction and bleeder pumps, spark plug sockets and install guides, oil filter cap adapter, oil funnels, and more!

SprintBooster throttle enhancement
This package fits the following BMWs:
2011-2012 E82 BMW 1M N54

Put a check in the boxes next to the items you wish to order.

Show More Show Less

E82 128i N51 SULEV, E9X 328i N51 SULEV 6MT Cooling Overhaul Package ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:340254

Part#: TMS215326

Ships in 1 day

Starting at $ 1,233.54 USD

Add to Wish List

Starting at $ 1,233.54 USD

Add to Wish List

This cooling overhaul will cover just about everything you could replace on the 328 SULEV's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N51 328 SULEV. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, cooling hoses, and the BMW antifreeze. This package fits 128/328 SULEV with N51 engine and manual transmission.

The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .

Base Cooling Overhaul Package - Water Pump and Thermostat

(click to expand)

Includes:
+ Genuine BMW electric water pump, p/n 11517586925
+ mounting screws for water pump (set of 3), p/n 11510392553
+ OEM Behr thermostat, p/n 11537549476
+ Original BMW connecting hose from thermostat to water pump, p/n 11537521049
+ OEM-style hose clamps for hose (x 2)

The water pump on the N51 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.

Coolant Hoses

(click to expand)

With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 SULEV water hoses during this job (see diagram):

17127531579, upper radiator hose (A)
17127531581, lower radiator hose (B)
11537552396, water pump to engine ©
11537545890, thermostat to cylinder head (includes new o-ring) (D)
There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).

Expansion Tank Options

(click to expand)

The expansion tank on the 328 SULEV is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.

Coolant Temp Sensors

(click to expand)

There are two coolant temp sensors on the 328 SULEV - in the lower radiator hose and in the cylinder head. Both feed coolant temps to the ECU to regulate the water pump and cooling fan. You should replace the one in the lower radiator hose because it's one of the main sources for coolant leaks, especially when the old sensor is re-used in a new hose. The sensor in the cylinder head is not as prone to leaks and it's easily accessible so you don't have to replace it right away. But we offer it with the package in case you want to have a complete cooling system overahul.
13621433077, coolant temp sensor (in lower radiator hose)
13621433076, coolant temp sensor (in cylinder head, next to oil filter housing)

BUY AS A PACKAGE AND SAVE $$!

This cooling package fits the following BMWs with the N51 engine and a manual transmission:
2008-2012 E82 BMW 128i SULEV
2007-2011 E90 BMW 328i 328xi 328i xDrive SULEV - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive SULEV - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive SULEV - Coupe
2007-2013 E93 BMW 328i SULEV - Convertible
Note: not for cars that have the dealer-installed auxiliary heating option. Some of the hoses are different with that option. It's not a very common option in North America (except in parts of Canada) but there are hoses that are specific to that option.

Click on the options for your kit below and then click "update price" for your kit total.

Show More Show Less

Basic Cooling System Service Kit - E82/88 E9X N55 3.0L w/ Auto Transm...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:557227

Part#: E8XE9XN55ABCKT

Ships in 7 Business Days

Sale - Save 24% $ 745.99

This product was last offered at the strikethrough price on
05-03-2026

$ 566.55 USD

Add to Wish List

Qty

Sale - Save 24%

$ 745.99

This product was last offered at the strikethrough price on
05-03-2026

$ 566.55 USD

Add to Wish List

Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

Show More Show Less

High-Performance Cooling System Service Kit - Level 1

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:38229085

Part#: 11517588885KT5

Ships on Aug 17, 2026

Sale - Save 8% $ 1,433.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,314.11 USD

Add to Wish List

Qty

Sale - Save 8%

$ 1,433.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,314.11 USD

Add to Wish List

Due to weak rubber and plastic construction, vital cooling system parts are prone to premature failure. Key components, such as radiator hoses, the thermostat, and the expansion tank are particularly prone to cracks, leaks, and catastrophic failure, which can lead to overheating and potentially severe engine damage. Fortunately, our team of experts has assembled this kit of high-performance alternatives and high-quality OE replacement components, both tailored to safeguard your cooling system from failure and increase cooling system capability.

The Turner Motorsport Level 1 Performance Cooling System Refresh Kit is the ultimate solution for ensuring long-term reliability and enhanced cooling performance. Each component in this comprehensive kit has been carefully selected by our team of enthusiasts to address common failure points and provide a robust, performance-oriented upgrade for your vehicle. By replacing aging factory parts with premium, high-performance alternatives, you’ll optimize cooling efficiency and safeguard your engine from the stress of overheating.

Our comprehensive "Level 1" High-Performance Cooling System Service Kit includes:

Turner Motorsport Heavy Duty Aluminum Expansion Tank Pierburg Full Aluminum Water Pump ECS Aluminized Water Pump Hose V2.0 Bremmen Parts Thermostat ECS Performance Silicone Radiator Hose Kit Genuine BMW Blue G48 Antifreeze (2 Gallons) Redline Water Wetter (12 oz.)

Show More Show Less

Cooling System overhaul Kit - E82/88 135i E9X 335i/xi/ix N54 Automati...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:554111

Part#: 11510392553RKT3

Back Ordered

Sale - Save 2% $ 1,660.99

This product was last offered at the strikethrough price on
04-10-2026

$ 1,632.70 USD

Add to Wish List

Qty

Sale - Save 2%

$ 1,660.99

This product was last offered at the strikethrough price on
04-10-2026

$ 1,632.70 USD

Add to Wish List

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E82/88 135i or E90/92/93 335i/xi/is with the N54 engine.

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts.

For vehicles with automatic or DCT transmission only

Show More Show Less

Cooling System overhaul Kit - E82/88 135i E9X 335i/xi/ix N54 manual t...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:554121

Part#: 11537558522KT3

Back Ordered

Sale - Save 5% $ 1,573.99

This product was last offered at the strikethrough price on
04-10-2026

$ 1,500.75 USD

Add to Wish List

Qty

Sale - Save 5%

$ 1,573.99

This product was last offered at the strikethrough price on
04-10-2026

$ 1,500.75 USD

Add to Wish List

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E82/88 135i or E90/92/93 335i/xi/is with the N54 engine.

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts.

For vehicles with manual transmission only

Show More Show Less

High Performance Cooling System Upgrade - E9X 335i N54 w/ Manual Tran...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:557323

Part#: E9XN54PCKT

Back Ordered

$ 2,160.99

This product was last offered at the strikethrough price on
05-03-2026

$ 2,154.64 USD

Add to Wish List

Qty

$ 2,154.64 USD

Add to Wish List

If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance CSF Aluminum Radiator for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, and a Mishimoto Performance 74*C thermostat for lower temperature operation and increased cooling of the engine.

Additional items included in this kit:

OEM Replacement Coolant Hoses
ECS Tuning Silicone Coolant Outlet Hose with ECS Billet Thermostat Hose Adapter
ECS Tuning Aluminized Water Pump Hose
OEM Expansion Tank, Cap, and Level Sensor
OEM Belts, Tensioners, and Pulleys
OEM Auxiliary Fan Switch
OEM VDO Water Pump
Genuine BMW Hardware for Easy Installation
Genuine BMW Antifreeze/Coolant (Undiluted) - 2 Gallons

Show More Show Less

Basic Cooling System Service Kit - E82/88 E9X N54 3.0L w/ Manual Tran...

For vehicles with manual transmission

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:557240

Part#: E8XE9XN54BCKT2

Back Ordered

$ 1,037.99

This product was last offered at the strikethrough price on
04-06-2026

$ 995.99 USD

Add to Wish List

Qty

$ 995.99 USD

Add to Wish List

Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

Show More Show Less

High Performance Cooling System Upgrade - E9X 335i N54 w/ DCT/Auto Tr...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:557324

Part#: E9XN54PCKT2

Back Ordered

$ 2,180.99

This product was last offered at the strikethrough price on
05-03-2026

$ 2,177.38 USD

Add to Wish List

Qty

$ 2,177.38 USD

Add to Wish List

If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance CSF Aluminum Radiator for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, and a Mishimoto Performance 74*C thermostat for lower temperature operation and increased cooling of the engine.

Additional items included in this kit:

OEM Replacement Coolant Hoses
ECS Tuning Silicone Coolant Outlet Hose with ECS Billet Thermostat Hose Adapter
ECS Tuning Aluminized Water Pump Hose
OEM Expansion Tank, Cap, and Level Sensor
OEM Belts, Tensioners, and Pulleys
OEM Auxiliary Fan Switch
OEM VDO Water Pump
Genuine BMW Hardware for Easy Installation
Genuine BMW Antifreeze/Coolant (Undiluted) - 2 Gallons

Show More Show Less

Project Cars

SELECT YOUR BMW

Packaged by Turner BMW Maintenance & Tune-Up Parts for BMW 1 Series

Sub-Categories

E82 128i N51 SULEV, E9X 328i N51 SULEV Auto Cooling Overhaul Package ...

E82 128i, E9X 328i Auto Cooling Overhaul Package

E82 128i, E9X 328i 6MT Cooling Overhaul Package

Manual Transmission Service Kit - E82 1M Coupe

E82 128i Build Your Own Maintenance Service Package

E82 1M Build Your Own Maintenance Service Package

E82 128i N51 SULEV, E9X 328i N51 SULEV 6MT Cooling Overhaul Package ...

Basic Cooling System Service Kit - E82/88 E9X N55 3.0L w/ Auto Transm...

High-Performance Cooling System Service Kit - Level 1

Cooling System overhaul Kit - E82/88 135i E9X 335i/xi/ix N54 Automati...

Cooling System overhaul Kit - E82/88 135i E9X 335i/xi/ix N54 manual t...

High Performance Cooling System Upgrade - E9X 335i N54 w/ Manual Tran...

Basic Cooling System Service Kit - E82/88 E9X N54 3.0L w/ Manual Tran...

High Performance Cooling System Upgrade - E9X 335i N54 w/ DCT/Auto Tr...

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results