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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Performance Thermostat - 90C - N62, N63, S63, N73, S55
Performance Thermostat - 90C - N62, N63, S63, N73, S55
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Bremmen Parts - Corporate Logo
T#:637061
Part#: 11537586885
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Includes housing and sealing o-ring A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also helping to increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
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Thermostat
Thermostat
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Bremmen Parts - Corporate Logo
T#:26538316
Part#: 11537601158
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$ 76.70 USD
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Low Temperature Thermostat - 97C
Low Temperature Thermostat - 97C
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Bremmen Parts - Corporate Logo
T#:33612901
Part#: 11537601158-97C
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Bav Auto Coolant Expansion Tank - With Level Sensor - E70 X5, E71 X6
Bav Auto Coolant Expansion Tank - With Level Sensor - E70 X5, E71 X6 ...
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Bavarian Autosport - Corporate Logo
T#:638093
Part#: 17138621092
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Replace your old expansion tank to prevent potential failure or leaks. Includes a brand new coolant level sensor.
Thermostat With Housing
Thermostat With Housing
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Bavarian Autosport - Corporate Logo
T#:18003829
Part#: 11517805811
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Coolant Hose
Coolant Hose
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T#:30729017
Part#: 17127576371
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Bremmen Parts O-Ring
Bremmen Parts O-Ring
Found at the flange end of the upper thermostat hose
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Bremmen Parts - Corporate Logo
T#:399143
Part#: 11537545278
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Seals your cooling system
Coolant Expansion Tank Cap
Coolant Expansion Tank Cap
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Bremmen Parts - Corporate Logo
T#:36032339
Part#: 17117639020
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Bremmen Auxiliary Fan Temperature Switch - E46 E39 E9X E60 E70 E53
Bremmen Auxiliary Fan Temperature Switch - E46 E39 E9X E60 E70 E53 ...
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Bremmen Parts - Corporate Logo
T#:640141
Part#: 13621433077
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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
Bremmen Lower Radiator Coolant Hose - E70 E71 F15 F16 N63
Bremmen Lower Radiator Coolant Hose - E70 E71 F15 F16 N63
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Bremmen Parts - Corporate Logo
T#:50381401
Part#: 17127576358
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Connects the lower radiator to the water pump Replace leaking hoses to prevent coolant loss and overheating
Bremmen Parts Coolant Hose - E9X N52
Bremmen Parts Coolant Hose - E9X N52
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T#:38621425
Part#: 11537521049
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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.
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Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02
Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02
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Bavarian Autosport - Corporate Logo
T#:639833
Part#: 13621433076
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This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. 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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Vent Hose
Vent Hose
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Bremmen Parts - Corporate Logo
T#:39295552
Part#: 17127576363
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