BMW Cooling System Parts & Accessories for BMW X Series E84 (2013-2015)

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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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Bav Auto Spill-Proof Coolant / Antifreeze Funnel
Bav Auto Spill-Proof Coolant / Antifreeze Funnel
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Bav Auto Tools - Corporate Logo
T#:580395
Part#: B8800082
In Stock
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$ 28.04 USD
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$ 32.99

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

$ 28.04 USD
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Multiple adapters include to fit a variety of vehicles.
Bav Auto Fan Clutch Wrench - 32mm
Bav Auto Fan Clutch Wrench - 32mm
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Bav Auto Tools - Corporate Logo
T#:580348
Part#: B8800019
In Stock
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This product was last offered at the strikethrough price on
05-03-2026

$ 23.99 USD
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$ 29.99

This product was last offered at the strikethrough price on
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Used to remove your fan clutch
Radiator / Cooling System Pressure Tester- Bavarian Autosport
Radiator / Cooling System Pressure Tester- Bavarian Autosport ...
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Bav Auto Tools - Corporate Logo
T#:580397
Part#: B8800084
In Stock
Sale - Save 15% $ 146.99

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

$ 124.94 USD
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$ 146.99

This product was last offered at the strikethrough price on
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Bav Auto Angled Hose Pinch Plier Set - 2pc
Bav Auto Angled Hose Pinch Plier Set - 2pc
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Bav Auto Tools - Corporate Logo
T#:580379
Part#: B8800058
In Stock
Sale - Save 25% $ 32.99

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

$ 24.74 USD
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$ 32.99

This product was last offered at the strikethrough price on
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$ 24.74 USD
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Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.
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Coolant Expansion Tank
Coolant Expansion Tank
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Meyle - Corporate Logo
T#:54959296
Part#: 314 223 0004
Ships on Oct 30, 2026
New Item
$ 75.99 USD
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$ 75.99 USD
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This Meyle original-quality expansion tank provides a durable, reliable solution to get your cooling system back to performing exactly as it should.
Meyle Thermostat Housing - BMW E84, F10, F22, F26, F30, F31, F32, F33, F34, F36, Z4
Meyle Thermostat Housing - BMW E84, F10, F22, F26, F30, F31, F32, F33...
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Meyle - Corporate Logo
T#:5704976
Part#: 11538635689
Special Order: No Guaranteed ETA
$ 72.99 USD
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$ 72.99 USD
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When it comes to your temperature gauge on your instrument cluster your thermostat plays a large role in where that temperature needle ends up. There are many cases where the vehicle will run a bit cool according to that gauge, oftentimes meaning the thermostat has failed and is stuck open allowing coolant to continuously circulate. The other more damaging side is when it closes shut and keeps the engine from cooling down properly. All vehicles are designed to operate in an ideal temperature range for the ultimate efficiency, life, and performance.
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