BMW Cooling System Parts & Accessories for BMW X Series E70 (2007-2013)

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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
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05-03-2026

$ 28.04 USD
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$ 32.99

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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
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05-03-2026

$ 23.99 USD
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$ 29.99

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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
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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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Mahle-Behr Thermostat With Adapter - E70, E90
Mahle-Behr Thermostat With Adapter - E70, E90
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Mahle-Behr - Corporate Logo
T#:568620
Part#: 11517805811
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$ 69.99

This product was last offered at the strikethrough price on
06-14-2026

$ 58.99 USD
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$ 58.99 USD
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Includes gasket and O-rings
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
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This product was last offered at the strikethrough price on
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$ 24.74 USD
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$ 32.99

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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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Mahle-Behr Radiator - E70, E71
Mahle-Behr Radiator - E70, E71
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Mahle-Behr - Corporate Logo
T#:593043
Part#: 17117576305
Ships on Jul 28, 2026
$ 756.99 USD
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$ 756.99 USD
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Standard replacement radiator
Mahle-Behr Coolant Expansion Tank - E70
Mahle-Behr Coolant Expansion Tank - E70
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Mahle-Behr - Corporate Logo
T#:377924
Part#: 17137552546
Ships on Jul 28, 2026
$ 85.99 USD
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$ 85.99 USD
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Replace your cracked or faded tank
Mahle-Behr Radiator Drain Plug - E53, E70
Mahle-Behr Radiator Drain Plug - E53, E70
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Mahle-Behr - Corporate Logo
T#:362776
Part#: 17117571988
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$ 10.99 USD
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$ 10.99 USD
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Used to drain the radiator

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