BMW Cooling System Parts & Accessories for BMW E36 (1992-1998) M3

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Packaged by Turner - Corporate Logo
T#:554687
Part#: EFANCON1KT
Ships on Jul 22, 2025
$ 343.99 USD
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$ 343.99 USD
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Looking to free up horsepower and upgrade your cooling? Then this Electric Fan Conversion kit is the perfect choice! The fan and clutch that connect to the water pump add additional rotating mass to the drive line. By removing them and converting your system to an electric fan, the engine has to do less work, giving you that extra little bit of power. In this kit we include a lower temperature thermostat, coolant additive, and low temperature fan switch that engages the electric fan at a lower temperature, keeping your engine cool and lowering the drag and unneeded weight from the front end of your BMW.

Included in this kit:

  • 80 degree Celsius thermostat
  • 1 liter of Genuine BMW coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • 16 inch Electric fan 
  • Electric fan mounting kit
  • Fan controller kit with probe sensor 
  • Fan delete nut

Fits the following BMWs:
09/1995-1999 E36 BMW 323is/ic 328i/is/ic M3

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Packaged by Turner - Corporate Logo
T#:557244
Part#: E36BCKT
Ships on Jul 22, 2025
Sale - Save 15% $ 213.99
$ 181.36 USD
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$ 181.36 USD
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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.

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Packaged by Turner - Corporate Logo
T#:338684
Part#: TMS2003
Ships on Jul 25, 2025
Sale - Save 1% $ 545.99
Starting at $ 541.12 USD
Sale - Save 1% $ 545.99
Starting at $ 541.12 USD
This is a compete cooling system overhaul kit, which includes all of the common E36 cooling system parts bundled into a complete package. The basic overhaul includes: water pump, radiator, radiator hoses, and thermostat. We bundled these together with a package discount for your convenience and savings. Additional items are also available to better cover your cooling system repair. Contact us if you need any other E36 cooling system parts.

The original E36's primary cooling components were prone to failure within 60k miles (or less in many cases). With better materials over the years we've seen that interval increase and you can now count on your water pump and radiator lasting at least 100,000 miles. That doesn't mean you can set aside preventaive maintenance. 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 radiator & 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 cooling system.

Top Turner Tip!
The very earliest E36s had infamous cooling system failures. But those are a thing of the past! We've got the best combination of parts to ensure a bulletproof E36 cooling system and it doesn't have to cost an arm and a leg. Our basic cooling package (OEM radiator and OE BMW water pump with composite impeller) is much better quality than what was available 20 years ago. And we can upgrade the system with full aluminum radiators, silicone hoses, and a stronger water pump. There are no more excuses for a weak E36 cooling system.

Basic Kit Contents:
17111469179, radiator (OEM Behr)
11517527799, water pump (OE BMW)
11537511580, 88°C thermostat (OEM Behr/Hella)
11531708499, upper radiator hose (OEM Rein/CRP)
11531726344, lower radiator hose (OEM Rein/CRP)
17111742231, expansion tank cap (OEM Behr/Hella)

Cooling Kit Options:
E36 Water Pump Options
(click to expand)
OE BMW with composite impeller. The original BMW water pumps had plastic impellers which degraded and failed. The latest design uses composites that are much better and will not corrode. Compared to a metal impeller, the composite is lighter so it's more efficient and it will not wear out the bearings. We don't even offer the metal impeller pumps with this kit because the BMW composite one is so much better.
Stewart high performance. The ultimate in M50 water pumps! It features a stainless steel impeller, heavy-duty bearings, a better o-ring seal, and flows 20% more than the stock pump. If indestructible is what you're looking for, this is the pump to go with. It also comes with a lifetime warranty for piece of mind.
E36 Radiators
(click to expand)
The stock radiator and fan combination has no downside in capacity. But where it lacks is in durability. The plastic tanks and hose necks are prone to cracking and then leaking. If you notice ANY greenish-white staining on the plastic then it's a sure sign of a crack. To avoid the plastic failures altogether, move up to a full aluminum radiator.

The MZ3 radiator has a thicker core and more capacity. Any time you can store the coolant away from the engine the better it will be. It will have less heat soak and lower overall temperatures.
The budget aluminum radiator is the same size as stock but obviously doesn't have the plastic.
The Fluidyne was designed with input from our own techs and race team. It's our go-to radiator for racing and track use.
E36 Expansion Tank
(click to expand)
The original expansion tank is prone to cracks and leakage. Again - it's made from a weak plastic. The material has improved over the years but the only option remains an OEM plastic tank. It's a good idea to replace it if you're doing a whole overhaul. Don't re-use the original tank if you're going to the trouble of replacing everything else!
E36 Thermostat Housing
(click to expand)
The original BMW plastic thermostat housing is brittle and does not seal well. We only sell it under protest. Instead we've been selling this aluminum housing for the last 20+ years. The aluminum does not have the same shortcomings as the plastic one. We made this item an option in case you already have the aluminum housing.

Use the options below to build your cooling package.

This cooling system overhaul kit fits the following BMWs:
1992-1999 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
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Packaged by Turner - Corporate Logo
T#:30397440
Part#: 11517527799KT2
Ships on Jul 22, 2025
$ 334.99 USD
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$ 334.99 USD
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BMW vehicles are known for their robust performance, but the water pump is a notorious weak spot, often needing replacement every 60,000 miles.

During this service, it's wise to also swap out the thermostat to maintain the efficiency of your vehicle's cooling system. Turner Motorsport simplifies this process with our expertly curated Water Pump & Thermostat Replacement Kit.

This premium kit centers around the renowned EMP Stewart high-performance water pump--a favorite among BMW enthusiasts for its exceptional design. Featuring a stainless steel impeller, this pump enhances coolant flow by 20%. Complementing this is a low-temperature 68°C (154.4°F) Mishimoto thermostat, an upgraded aluminum thermostat housing, and Redline Water Wetter coolant additive. Together, these components make for the ultimate cooling system upgrade for your E36, E39, or Z3!

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Packaged by Turner - Corporate Logo
T#:554693
Part#: FD1AFT95KT
In Stock
Sale - Save 14% $ 86.72
$ 74.44 USD
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$ 74.44 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This basic kit is the cheapest option, including just the bare essentials to get the job done and get your car running without a fan.

This kit is best for someone who has already upgraded their thermostat housing and/or water pump pulley and has performed regular maintenance on their engine drive belts.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch

Fits the following BMWs:
09/1995-1999 E36 BMW 323is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Packaged by Turner - Corporate Logo
T#:338018
Part#: 17111723520
In Stock
Starting at $ 86.08 USD
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Starting at $ 86.08 USD
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This high quality BEHR brand expansion tank is used on M50, M52, S50 and S52 engines, and is a common failure item on all E36 3 series with 6 cylinder engines (325/328/323 and M3) 1992-1999, Z3 with 2.8 liter, MZ3 Roadster/Coupe (S52), and E39 528i from 1997-1998. BEHR was the original equipment supplier to BMW, so you know the BEHR made expansion tank will be the highest quality available. Be leary of competitors selling this part for less -- is it a BEHR? Probably not. We only carry the BEHR brand expansion tank as it is the only one we use in our own BMWs.

If you are overhauling your coolant system, now is the time to consider preventative replacing this expansion tank. These are known to go bad, causing a leak which can leave you stranded. We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.

Need a new coolant level sensor too? If your coolant level sender is bad, your on board computer will constantly display a "low coolant" message (unless your coolant is actually low...). If you're replacing your expansion tank, now is a great time to replace this failure prone sensor. If you want a new coolant level sensor, simply choose from the option below. Because there are different sensors for different year/model BMWs, please be as specific as possible when you give us your car info during checkout (model, year, production date). Thanks!


This item fits the following BMWs:
1992-1998 E36 BMW 323ic 325i 325is 325ic 328i 328is 328ic M3
1997-1998 E39 BMW 528i
1997-1998 Z3 BMW Z3 2.8
1998-2000 Z3 BMW M Roadster M Coupe (S52)
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Packaged by Turner - Corporate Logo
T#:554690
Part#: FD1PRE95KT
Ships in 2 Business Days
Sale - Save 5% $ 66.99
$ 63.37 USD
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Sale - Save 5% $ 66.99
$ 63.37 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This basic kit is the cheapest option, including just the bare essentials to get the job done and get your car running without a fan.

This kit is best for someone who has already upgraded their thermostat housing and/or water pump pulley and has performed regular maintenance on their engine drive belts.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch

Fits the following BMWs:
1992-09/1995 E36 BMW 325i/is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Packaged by Turner - Corporate Logo
T#:554696
Part#: FD3AFT95KT
Ships on Jul 22, 2025
Sale - Save 12% $ 245.11
$ 215.56 USD
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Sale - Save 12% $ 245.11
$ 215.56 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This Ultimate kit is the top tier option, including the essential conversion components, the upgraded aluminum thermostat housing, and a brand new accessory belt.

This kit is best for someone who has not performed recent cooling system maintenance or who wants to replace everything at once for increased reliability and longevity.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • Aluminum thermostat housing with gaskets
  • Fan delete nut
  • ECS  Aluminum Water Pump Pulley - Black
  • Accessory Belt

Fits the following BMWs:
09/1995-1999 E36 BMW 323is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Packaged by Turner - Corporate Logo
T#:554692
Part#: FD3PRE95KT
Ships on Jul 22, 2025
Sale - Save 11% $ 225.99
$ 201.16 USD
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Sale - Save 11% $ 225.99
$ 201.16 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This Ultimate kit is the top tier option, including the essential conversion components, the upgraded aluminum thermostat housing, and a brand new accessory belt.

This kit is best for someone who has not performed recent cooling system maintenance or who wants to replace everything at once for increased reliability and longevity.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • Aluminum thermostat housing with gaskets
  • Fan delete nut
  • ECS  Aluminum Water Pump Pulley - Black
  • Accessory Belt

Fits the following BMWs:
1992-09/1995 E36 BMW 325i/is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Packaged by Turner - Corporate Logo
T#:554694
Part#: FD2AFT95KT
Ships on Jul 22, 2025
Sale - Save 13% $ 119.58
$ 104.02 USD
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Sale - Save 13% $ 119.58
$ 104.02 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This Comprehensive kit is the mid-priced option, including the essentials and an upgraded aluminum thermostat housing that won't crack or break like the brittle plastic housing. 

This kit is best for someone who wants to upgrade their thermostat housing to aluminum, has already upgraded their water pump pulley, and has performed regular maintenance on their engine drive belts.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • Aluminum thermostat housing with gaskets
  • Fan delete nut

Fits the following BMWs:
09/1995-1999 E36 BMW 323is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Packaged by Turner - Corporate Logo
T#:557247
Part#: E36BCKT2
Ships on Jul 22, 2025
Sale - Save 10% $ 209.99
$ 188.89 USD
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Sale - Save 10% $ 209.99
$ 188.89 USD
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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.

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Packaged by Turner - Corporate Logo
T#:554691
Part#: FD2PRE95KT
Ships on Jul 22, 2025
Sale - Save 10% $ 99.99
$ 89.62 USD
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Sale - Save 10% $ 99.99
$ 89.62 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This Comprehensive kit is the mid-priced option, including the essentials and an upgraded aluminum thermostat housing that won't crack or break like the brittle plastic housing. 

This kit is best for someone who wants to upgrade their thermostat housing to aluminum, has already upgraded their water pump pulley, and has performed regular maintenance on their engine drive belts.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • Aluminum thermostat housing with gaskets
  • Fan delete nut

Fits the following BMWs:
1992-09/1995 E36 BMW 325i/is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Packaged by Turner - Corporate Logo
T#:557319
Part#: E36PCKT
Ships on Aug 8, 2025
Sale - Save 10% $ 1,315.99
$ 1,183.54 USD
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$ 1,183.54 USD
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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 ECS Tuning Aluminum Radiator, for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, a performance Mishimoto 68*C thermostat, for lower temperature operation and increased cooling of the engine, and a Stewart High Performance Water Pump, for dramatically increased coolant flow at all RPMs. 

Additional items included in this kit:

  • ECS Tuning Silicone Coolant Hoses - For increased reliability over the stock rubber hoses
  • ECS Tuning Heavy Duty Aluminum Coolant Bleeder Screw
  • OEM Expansion Tank, Cap, and Level Sensor
  • OEM Belts, Tensioners, and Pulleys
  • OEM Low Temperature Auxiliary Fan Switch
  • Genuine BMW Hardware for Easy Installation
  • ECS Tuning Aluminum Water Pump Pulley - For increased coolant flow and reliability over the stock composite pulley
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Packaged by Turner - Corporate Logo
T#:554672
Part#: E366CYLLITETMSKT
Ships on Aug 8, 2025
Sale - Save 20% $ 204.99
$ 163.74 USD
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Sale - Save 20% $ 204.99
$ 163.74 USD
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Looking to improve your cooling system's performance and add some peace of mind at the same time? Look no further. This kit includes everything you need to add performance, durability and longevity to your cooling system without spending a ton of money. Best of all, the upgrade can be performed by a reasonably competent DIY enthusiast in an afternoon. The team at ECS Tuning supplies their excellent silicone radiator hoses, stainless hose clamps, and aluminum coolant bleed screw for increased durability and heat resistance. Meanwhile, a lower pressure expansion tank cap makes for a less costly "weak link" if the system builds too much pressure, potentially saving you from a costly radiator replacement that could leave you stranded. The kit also includes a gallon of Genuine BMW coolant along with 12 ounces of Red Line Water Wetter, which lowers operating temperatures and protects your cooling system from internal corrosion. All you need is this kit, a few hours of free time, and a gallon of distilled water to keep your E36 cool & running at its best!

Kit Contents:

- ECS Tuning Silicone Radiator Hoses

- ECS Tuning Stainless Steel Hose Clamps

- ECS Tuning Heavy Duty Aluminum Coolant Bleeder Screw

- 1.4 Bar Expansion Tank Cap

- Red Line Water Wetter - 12oz

- Genuine BMW Coolant - 1 Gallon

 

Fits the Following BMWs:

E36 323i 325i 328i M3

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Packaged by Turner - Corporate Logo
T#:25772575
Part#: E36PCKT1
Ships on Aug 8, 2025
Sale - Save 5% $ 919.99
$ 873.10 USD
Sale - Save 5% $ 919.99
$ 873.10 USD

Packaged by Turner - Corporate Logo
T#:554081
Part#: 11537511580KT3
Ships Dec 18, 2025
Sale - Save 6% $ 59.99
$ 56.34 USD
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$ 56.34 USD
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When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

Kit includes:

  • Thermostat with gasket
  • Thermostat mounting hardware
  • 1 liter of coolant

This waterpump fits the following BMWs: 
1992-1999 E36 3 series - 323is, 323ic, 325i, 325is, 325ic, 328i, 328ic, M3 3.0 (S50/US), M3 3.2 (S52) 

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Packaged by Turner - Corporate Logo
T#:554688
Part#: EFANCON2KT
Ships on Jul 22, 2025
$ 320.99 USD
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$ 320.99 USD
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Looking to free up horsepower and upgrade your cooling? Then this Electric Fan Conversion kit is the perfect choice! The fan and clutch that connect to the water pump add additional rotating mass to the drive line. By removing them and converting your system to an electric fan, the engine has to do less work, giving you that extra little bit of power. In this kit we include a lower temperature thermostat, coolant additive, and low temperature fan switch that engages the electric fan at a lower temperature, keeping your engine cool and lowering the drag and unneeded weight from the front end of your BMW.

Included in this kit:

  • 80 degree Celsius thermostat
  • 1 liter of Genuine BMW coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • 16 inch Electric fan 
  • Electric fan mounting kit
  • Fan controller kit with probe sensor 
  • Fan delete nut

Fits the following BMWs:
1992-09/1995 E36 BMW 325i/is/ic 328i/is/ic M3

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Bavarian Autosport - Corporate Logo
T#:638094
Part#: 17111723520
In Stock
$ 38.99 USD
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$ 38.99 USD
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Replace your old expansion tank to prevent potential failure or leaks. Includes a brand new coolant level sensor. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bavarian Autosport - Corporate Logo
T#:640208
Part#: 17117639022
In Stock
Sale - Save 15% $ 11.99
$ 10.19 USD
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Sale - Save 15% $ 11.99
$ 10.19 USD
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This radiator expansion tank cap is used most BMW's from 1991-2006. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bav Auto Coolant Level Sensor - BMW E36 E39 M50/52 S50/52
For vehicles with production date from 06/1995
Bavarian Autosport - Corporate Logo
T#:639793
Part#: 61318360855
In Stock
Sale - Save 15% $ 19.99
$ 16.99 USD
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Sale - Save 15% $ 19.99
$ 16.99 USD
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This is the sensor / sending unit that notifies the computer if your coolant level is low. When this fails, it can give a false indication of low coolant -- or worse, not inform you of a low coolant situation that could potentially cause overheating. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bavarian Autosport - Corporate Logo
T#:639828
Part#: 13621703993
Ships on Aug 29, 2025
Sale - Save 15% $ 19.99
$ 16.99 USD
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Sale - Save 15% $ 19.99
$ 16.99 USD
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This is the coolant temperature sensor used in many BMW models from the mid-1990s to the mid-2000s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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