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BMW Cooling System Parts & Accessories for BMW 5 Series E39 (1996-2003)

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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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Engine Fan - E31 E32 E34 E38 E39 with V8

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T#:4528

Part#: 11521712110

Ships in 2 Business Days

$ 83.64

This product was last offered at the strikethrough price on
05-29-2026

$ 74.27 USD

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11 blade engine fan for cars with M60 M62 and S62 V8 engines. Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self-evident in the quality and vast amount of applications they serve. With more than 34,000 repair solutions for cars and commercial vehicles, you can be sure Febi has you covered.

This item fits the following BMWs:
1993-1995 E34 BMW 530i 540i
1997-2003 E39 BMW 540i M5
1992-1994 E32 BMW 740i 740il 750il
1995-2001 E38 BMW 740i 740il 750il
1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi

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BMW Coolant / Antifreeze - 1.5L

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T#:16175674

Part#: 82141467704

Ships on Nov 25, 2026

$ 70.99 USD

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$ 70.99 USD

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Coolant G11 (Concentrate). The right anti-freeze agent makes a key contribution towards the reliable functioning of the engine cooling system under all operating and weather conditions. Cooler anti-freeze agents from Febi are precisely matched to the special requirements of the vehicle manufacturer and offer reliable protection from damages caused by freezing, corrosion, and cavitation. A good functioning cooling system is a primary prerequisite for the optimum operation of the engine. The ideal mixing ratio is 1:1, which offers frost protection to -36° C. With a ratio of 1:1 of water and concentrate, the boiling point of the cooling is approximately 107° C.+ High protection against freezing, corrosion, and cavitation Prevention of deposits and foam formation

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OEM Febi Auxiliary Fan Switch

For vehicles with production date from 09/1998

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T#:340712

Part#: 13621433077

Ships on Nov 25, 2026

$ 29.99 USD

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$ 29.99 USD

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The auxiliary fan switch activates the auxiliary cooling fan to provide additional cooling under high heat loads, and when the car is stationary.

Febi Coolant Expansion Tank - E36, E39, Z3

For vehicles with production date up to 08/1998

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T#:363759

Part#: 17111723520

Ships on Nov 25, 2026

$ 54.99 USD

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$ 54.99 USD

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Does not include cap or coolant level sensor

Febi Radiator Hose - Lower - E39

For vehicles with production date from 09/1998

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T#:4474

Part#: 11531705224

In Stock

$ 53.99

This product was last offered at the strikethrough price on
05-02-2026

$ 42.99 USD

Limited Qty Sale

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$ 53.99

This product was last offered at the strikethrough price on
05-02-2026

$ 42.99 USD

Limited Qty Sale

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This coolant hose goes from the lower radiator to the water pump. This hose has a temperature sensor in it. (sold separately- see below).

This item fits the following BMWs:
1999-2003 E39 BMW 525i 528i 530i

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Febi Radiator Hose - Upper - E39

For vehicles with production date from 09/1998

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T#:363755

Part#: 11531705223

Ships in 1 Business Day

$ 68.99 USD

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$ 68.99 USD

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Includes retaining clips

Motorsport Thermostat - 60C - Complete with Housing - M54 / M52tu ...

T#:1171

Part#: TMS1171

Ships in 9 Business Days

$ 415.45 USD

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$ 415.45 USD

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This is a genuine BMW Motorsport part, designed specifically for BMW racing applications. We use this exact thermostat setup in our Championship-winning E46 330i race car. It is designed to be used on all M54 and M52TU double-VAN0S engines, as used in the 1999-2000 E46 323/328 and 2001-2005 E46 325/330. This 60 degree C (140 defrees F) thermostat comes complete with plastic thermostat housing. It does not use the plug and wiring for the stock DME so this should only be used with an aftermarket engine management system (Motec, Bosch, etc).

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

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Heater Inlet Pipe

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T#:594084

Part#: 11531705210

Ships on Sep 16, 2026

$ 47.46 USD

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$ 47.46 USD

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Runs from the front left side of the engine to the heater inlet

Febi Radiator Fan Clutch - E34, E36, E39, E46, E53, Z3

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T#:382395

Part#: 11527505302

Ships on Nov 25, 2026

$ 187.99 USD

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$ 187.99 USD

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Common source of engine overheating

Meyle Radiator Fan Clutch - E31, E32, E34, E38, E39

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T#:591319

Part#: 11527502804

Ships on Sep 16, 2026

$ 101.99 USD

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$ 101.99 USD

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OEM replacement

Meyle Water Pump - M62

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T#:579328

Part#: 11510393336

Ships on Sep 16, 2026

$ 106.99 USD

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$ 106.99 USD

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Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly.

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Water Pump and Seal - with upgraded metal impeller - MEYLE

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T#:579324

Part#: 11517509985

Ships on Sep 16, 2026

$ 52.99 USD

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$ 52.99 USD

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Ensure the optimal performance of your BMW by addressing the crucial component of the water pump. Turner Motorsport provides high-quality water pumps designed to keep coolant flowing smoothly. If left unchecked, a failing water pump can lead to overheating issues, potentially causing damage to engine internals. Common among German vehicles, water pump failure may result in unnecessary visits to the repair shop. Preventive maintenance, especially during timing belt replacements, is essential to avoid rapid coolant temperature rise and potential engine damage.

Prevents overheating issues
Guards against engine damage
Common replacement during timing belt maintenance
Ensures smooth coolant flow for optimal engine performance
Options for thermostats available on Turner Motorsport's website
Convenient coolant replacement options
Recommended replacement around 60,000 miles

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Meyle Coolant Expansion Tank - E36, E39, Z3

Up to production date 09/1998

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T#:556111

Part#: 17111723520

Ships on Sep 16, 2026

$ 34.99 USD

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$ 34.99 USD

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Does not include cap or coolant level sensor

Febi Coolant level sensor - E36, E39

For vehicles with production date up to 09/1998

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T#:382276

Part#: 61318360855

In Stock

Sale - Save 29% $ 18.22

This product was last offered at the strikethrough price on
05-14-2026

$ 12.99 USD

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Sale - Save 29%

$ 18.22

This product was last offered at the strikethrough price on
05-14-2026

$ 12.99 USD

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Monitors the coolant level in the expansion tank

Febi Coolant Level Sensor - E31, E38, E39

For vehicles with production date from 09/1998

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T#:341632

Part#: 61318360876

In Stock

$ 14.99 USD

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$ 14.99 USD

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Monitors the coolant level in the expansion tank

Meyle Expansion Tank Cap

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T#:579357

Part#: 3148009004

In Stock

Sale - Save 40% $ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD

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Sale - Save 40%

$ 14.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.99 USD

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Replace worn or missing pieces.

BMW Coolant Pipe

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T#:17339419

Part#: 11531705220

Ships in 1 Business Day

$ 66.99 USD

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$ 66.99 USD

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This is a set of hard plastic coolant lines that are routed between the auxiliary water pump inlet/outlet, coolant expansion tank, and turbocharger cooling return pipe.

Febi Freeze Plug - 11111714712

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T#:6570

Part#: 11111714712

Ships in 1-2 days

$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 1.30 USD

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$ 1.30 USD

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ENGINE COVER LID 11111714712

Auxiliary Electric Water Pump

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T#:57014181

Part#: 64116913489

Ships on Sep 16, 2026

$ 75.99 USD

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$ 75.99 USD

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Keep your heating and cooling systems performing sharply with a precision-fit replacement built for long-haul reliability.

Febi Coolant Hose - E38, E39

For vehicles with production date up to 09/1998

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T#:381793

Part#: 11531745595

Special Order: No Guaranteed ETA

$ 22.99 USD

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$ 22.99 USD

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Replacement upper radiator hose. This is an OEM BMW replacement hose.

This item fits the following BMWs:
1997-1998 E39 BMW 540i
1996-1998 E38 BMW 740i 740il

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Febi Expansion Tank Hose - E31, E38, E39

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T#:6969

Part#: 11531741404

Special Order: No Guaranteed ETA

$ 22.99 USD

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$ 22.99 USD

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ENGINE WATER HOSE 11531741404

Febi Radiator Hose - Lower - E38, E39

For vehicles with production date up to 09/1998

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T#:382399

Part#: 11531741409

Special Order: No Guaranteed ETA

$ 22.99 USD

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$ 22.99 USD

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Replacement lower radiator hose. This is an OEM BMW replacement hose.

This item fits the following BMWs:
1997-1998   E39 BMW   540i
1996-1998   E38 BMW   740i 740il

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Febi Coolant Expansion Tank - E31, E38, E39

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T#:381841

Part#: 17111741167

Special Order: No Guaranteed ETA

$ 90.99 USD

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$ 90.99 USD

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Replace your cracked or faded expansion tank.

Febi Radiator Fan Clutch - E31, E32, E34, E38, E39

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T#:341629

Part#: 11527502804

Special Order: No Guaranteed ETA

$ 109.99 USD

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$ 109.99 USD

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Quality aftermarket replacement

Fluid Level Sensor

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T#:5973204

Part#: 17117546548

Ships on Sep 16, 2026

$ 13.99 USD

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$ 13.99 USD

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MEYLE-ORIGINAL: True to OE fluid level sensor. Used in multiple locations. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 17117546548

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Coolant Level Sensor

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T#:594511

Part#: 61318360876

Ships on Sep 16, 2026

$ 27.99 USD

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$ 27.99 USD

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Monitors the coolant level in the expansion tank. This sensor is critical in keeping tabs of your cooling systems health.

Coolant Temperature Sensor

Located on water pump housing For vehicles with production date from 09/1998

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T#:594615

Part#: 13621703993

Ships on Sep 16, 2026

$ 18.99 USD

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$ 18.99 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.

This coolant temp sensor fits the following BMWs:
1996-1999 E36 BMW 323is 323ic 328i 328is 328ic M3, located in cylinder head
1999-2003 E39 BMW 540i, located on side of water pump
1999-2001 E38 BMW 740i 740il, located on side of water pump
1995-1996 E38 BMW 750il, located on side of water pump
1990-1999 E31 BMW 850i 850ci, located on side of water pump
2000-2006 E53 BMW X5 3.0i, located in cylinder head
2000-2006 E53 BMW X5 4.4i/4.6is/4.8is, located on side of water pump
1997-2002 Z3 BMW Z3 2.5i Z3 3.0i, located in cylinder head

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Auxillary Fan Switch

For vehicles with production date from 09/1998

5X Entries Into Our F80 M3 Sweepstakes
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T#:4934936

Part#: 3148210000

Ships on Sep 16, 2026

$ 18.99 USD

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$ 18.99 USD

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The auxiliary fan switch activates the auxiliary cooling fan to provide additional cooling under high heat loads, and when the car is stationary. Also known as the coolant temperature sending unit, comes with related o-ring

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BMW - Engine/Cooling

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T#:40444296

Part#: 11531705224

Back Ordered

$ 35.99 USD

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$ 35.99 USD

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Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine. With the proper diameter, bends, and lengths, this is the perfect replacement for any swelled or damaged hose. An easy installation, it's piece of mind the next time you are on a long trip or your morning commute.

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