BMW Cooling System Parts & Accessories for BMW 5 Series E34 (1987-1995)

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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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Meyle Radiator Fan Clutch - E12, E24, E28, E30, E34, E36, Z3
Meyle Radiator Fan Clutch - E12, E24, E28, E30, E34, E36, Z3 ...
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Meyle - Corporate Logo
T#:384584
Part#: 11521723918
In Stock
$ 108.99

This product was last offered at the strikethrough price on
06-22-2026

$ 93.99 USD
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$ 93.99 USD
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Quality aftermarket replacement
Coolant Level Sensor - E30 87-91, E32 E34
Coolant Level Sensor - E30 87-91, E32 E34
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Febi - Corporate Logo
T#:1728
Part#: 61311378320
In Stock
$ 26.17

This product was last offered at the strikethrough price on
07-09-2026

$ 23.99 USD
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$ 23.99 USD
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Coolant level sensor for most E30, E32, and E34 cars. Fits E30 M3 and all E30 325's; E32 735, 740, and 750; and E34 530, 535, 540, and M5. 

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 service. 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:
1987-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325is 325ic 325xi M3
1989-1995 E34 BMW 530i 535i 540i M5
1987-1989 E24 BMW 635csi M6
1988-1994 E32 BMW 735i 735il 740i 740il 750il

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Febi Thermostat Housing - E34, E36, Z3
Febi Thermostat Housing - E34, E36, Z3
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Febi - Corporate Logo
T#:381790
Part#: 11531722531
In Stock
$ 53.42

This product was last offered at the strikethrough price on
09-04-2026

$ 32.99 USD
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$ 32.99 USD
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Replacement plastic thermostat housing
OEM Febi Engine Fan Blade - E30 325e/I 88-91, E24, E28, E34, E36, Z3
OEM Febi Engine Fan Blade - E30 325e/I 88-91, E24, E28, E34, E36, Z3 ...
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Febi - Corporate Logo
T#:377352
Part#: 11521723363
In Stock
$ 48.33

This product was last offered at the strikethrough price on
04-20-2026

$ 46.99 USD
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$ 46.99 USD
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This fan is driven by the belt, engaged by the fan clutch. If you have bad motor mounts, it's quite common for the blades of this fan to make contact with the radiator or radiator shroud, essentially self-destructing the fan into many peices. Be sure to get a new fan clutch, while you are replacing this. This item fits the following BMWs: 1988-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix 1992-1998 E36 BMW 318i 318is 318ti 318ic 1988 E28 BMW 528e 535i 535is M5 1989-1990 E34 BMW 525i 1988-1989 E24 BMW 635csi M6 1997-1998 Z3 BMW Z3 1.9
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BMW Coolant / Antifreeze - 1.5L
BMW Coolant / Antifreeze - 1.5L
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Febi - Corporate Logo
T#:16175674
Part#: 82141467704
Ships on Jan 12, 2027
$ 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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Radiator Fan Switch - 91/99 degree - E30 E36 E34 E32 E31 Z3
Radiator Fan Switch - 91/99 degree - E30 E36 E34 E32 E31 Z3
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Febi - Corporate Logo
T#:4562
Part#: 61311378073
In Stock
$ 60.99

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

$ 43.99 USD
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$ 43.99 USD
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Engine radiator double temperature fan switch, 91/99 degree celsius. This switch is designed to activate the auxiliary fan at the specified temperatures. A faulty switch can lead to the auxiliary fan not activating, causing over heating.
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 service. 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:
1987-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
1992-1995 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic M3
1989-1995 E34 BMW 525i 530i 535i 540i M5
1988-1994 E32 BMW 735i 735il 740i 740il 750il
1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi
1996-7/1996 Z3 BMW Z3 1.9
1996-5/1997 Z3 BMW Z3 2.8
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Hella Radiator - Manual - E34
Hella Radiator - Manual - E34
Behr - Corporate Logo
T#:363371
Part#: 17111737760
Ships in 2 Business Days
$ 687.60

This product was last offered at the strikethrough price on
08-13-2026

$ 497.64 USD
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$ 497.64 USD
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Replace your leaking radiator
Febi Thermostat - 88°C - E30, E34, E36, Z3
Febi Thermostat - 88°C - E30, E34, E36, Z3
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Febi - Corporate Logo
T#:382407
Part#: 11537511580
Ships on Jan 12, 2027
$ 32.99 USD
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$ 32.99 USD
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Includes sealing O-ring gasket
Febi Water Pump - E30, E34
Febi Water Pump - E30, E34
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Febi - Corporate Logo
T#:382390
Part#: 11519070759
Ships on Jan 12, 2027
$ 67.99 USD
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$ 67.99 USD
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Includes gasket. New - not remanufactured!
Febi Radiator Fan Clutch - E34, E36, E39, E46, E53, Z3
Febi Radiator Fan Clutch - E34, E36, E39, E46, E53, Z3
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Febi - Corporate Logo
T#:382395
Part#: 11527505302
Ships on Jan 12, 2027
$ 187.99 USD
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$ 187.99 USD
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Common source of engine overheating
Fan Blade
Fan Blade
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Meyle - Corporate Logo
T#:594536
Part#: 11521723363
Ships on Oct 30, 2026
$ 32.99 USD
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$ 32.99 USD
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This fan is driven by the belt, engaged by the fan clutch. If you have bad motor mounts, it's quite common for the blades of this fan to make contact with the radiator or radiator shroud, essentially self-destructing the fan into many peices. Be sure to get a new fan clutch, while you are replacing this.
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Water Pump
Water Pump
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Meyle - Corporate Logo
T#:582577
Part#: 11519070761
Ships on Oct 30, 2026
$ 55.99 USD
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$ 55.99 USD
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Meyle Radiator Fan Clutch - E31, E32, E34, E38, E39
Meyle Radiator Fan Clutch - E31, E32, E34, E38, E39
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Meyle - Corporate Logo
T#:591319
Part#: 11527502804
In Stock
$ 101.99 USD
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$ 101.99 USD
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OEM replacement
Febi Thermostat - 80C - E30, E32, E34
Febi Thermostat - 80C - E30, E32, E34
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Febi - Corporate Logo
T#:381785
Part#: 11531713040S1
Back Ordered
$ 35.99 USD
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$ 35.99 USD
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Includes sealing O-ring
Expansion Tank Cap - 1.4 Bar - E36 318i 323i 325i 328i M3
Expansion Tank Cap - 1.4 Bar - E36 318i 323i 325i 328i M3
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Febi - Corporate Logo
T#:340717
Part#: 17111742232
Ships in 2 Business Days
$ 24.99

This product was last offered at the strikethrough price on
06-18-2026

$ 9.99 USD
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$ 9.99 USD
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This expansion tank cap, from the E30 325is, is designed to give way at 20 PSI instead of 30 PSI, like the stock cap. In the event the system over-pressurizes, this cap should let go first, potentially saving your radiator, hoses, or other vital cooling system components. While there's no guarantee it will save your radiator, this small part could mean the difference between calling a tow service and making it home, and a little extra insurance never hurt. This cap is a high-quality aftermarket part from an OE supplier.

Fits the Following BMWs:

E36 318i 323i 325i 328i M3

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Meyle Expansion Tank Cap
Meyle Expansion Tank Cap
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Meyle - Corporate Logo
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.
Coolant Thermostat - Includes Sealing Gasket
Coolant Thermostat - Includes Sealing Gasket
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:54852031
Part#: 028 280 0004
In Stock
New Item
$ 11.99 USD
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$ 11.99 USD
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This Meyle-Original replacement thermostat is a direct-fit solution designed to maintain a rock-solid, factory-correct 80°C operating temperature.
Febi Bypass Hose - E12, E23, E24, E28, E3, E32, E34, E9
Febi Bypass Hose - E12, E23, E24, E28, E3, E32, E34, E9
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Febi - Corporate Logo
T#:382396
Part#: 11531266459
Ships in 4 Business Days
$ 9.17 USD
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$ 9.17 USD
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Water pump to thermostat housing
Febi Radiator Fan Clutch - E31, E32, E34, E38, E39
Febi Radiator Fan Clutch - E31, E32, E34, E38, E39
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Febi - Corporate Logo
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
Febi Coolant Temperature Sender - E31, E32, E34, E36, E38
Febi Coolant Temperature Sender - E31, E32, E34, E36, E38
For vehicles with production date from 09/1992
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Febi - Corporate Logo
T#:382428
Part#: 12621747281
In Stock
$ 20.99 USD
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$ 20.99 USD
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2 pin
Meyle Expansion Tank Cap
Meyle Expansion Tank Cap
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Meyle - Corporate Logo
T#:5958735
Part#: 17111742232
Back Ordered
$ 10.99 USD
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$ 10.99 USD
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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. The coolant expansion tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap. Often times, the coolant is not kept under enough pressure to keep it from boiling or expanding too much. This cap keeps all the heat and liquid inside the coolant system for maximum efficiency. Should be replaced each time major coolant system service is performed.
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Behr Radiator - E34
Behr Radiator - E34
Behr - Corporate Logo
T#:1195792
Part#: 17111723467
Back Ordered
$ 273.99

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

$ 265.99 USD
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$ 265.99 USD
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OE replacement radiator

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