Mahle-Behr BMW Cooling System Parts & Accessories for BMW 6 Series E63 (2004-2010)

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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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OEM Mahle-Behr Thermostat - 79*C - E9X M3 E60 M5 E63 M6
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:2252
Part#: 11537836155
In Stock
$ 74.28 USD
Free Shipping on orders $49 and up
Replacement stock thermostat for E90, E92, E93 M3 - S65 engine- E60 M5 E63 M6 with S85 engine. Your car may still operate fine according the instrument display but the electrically-operated thermostat may be going bad.
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Coolant Expansion Tank - E60 E63
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:340674
Part#: 17137542986
In Stock at Vendor
$ 137.66 USD
Free Shipping
$ 137.66 USD
Free Shipping
This Behr OEM cooling system expansion tank / coolant reservoir is a direct replacement for the factory unit. Replace your cracked or leaking radiator expansion tank today.

Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.​

This item fits the following BMWs:
2004-2010  E60 BMW  525i 525xi 530i 530xi 528i 528xi 528i xDrive 535i 535xi 535i xDrive 545i 550i
2004-2010  E63 BMW  645ci 650i
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OEM Behr Radiator - E60 545i ,E63 645ci, E65 745i/li, 760i/li ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:15093
Part#: 17117585440
In Stock at Vendor
$ 253.95 USD
$ 253.95 USD

This radiator is the OEM Hella replacement for the stock radiator in the E60 545i and E63 645ci and E65 745i. Keeping your BMW at peak performance means including your cooling system in your regular maintenance schedules with the radiator, water pump, and thermostat being the primary components needing replacement. Not only can a failed radiator leave you stranded, but the sophisticated engine electronics will limit engine operability if temperatures reach a certain level. So having an efficient and fully functional cooling system is critical not only for safety but for performance as well. Don't wait until it's too late!

Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMW Chassis:2004-2005 E60 BMW 545i - Automatic Transmission
2004-2005 E63 BMW 645ci - Automatic Transmission
2002-3/2005 E65 BMW 745i 745li 760i 760li
Fits BMW Engines including:
N62,N73

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OEM Hella/Behr Radiator -- E60 525i, 528i, 530i, 550i, E63 650i, E65 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:11937
Part#: 17117519209
In Stock at Vendor
$ 297.49 USD
$ 297.49 USD

OEM HELLA/BEHR brand replacement radiator for E60 525i/528i/530i and 550i, E63 650i, E65 750i/li 10/2005+. This radiator is made by HELLA/BEHR, an original equipment supplier to BMW. HELLA/BEHR radiators are what we use our own BMWs and customer installs. We've found the HELLA/BEHR radiator has the highest lifespan, least amount of manufacturing defects, and best continued cooling performance for your BMW. Simply put, you do not want anything else in your BMW but a HELLA/BEHR brand radiator.

Click here for important info on the 2006-2010 525i/528i/530i radiator.

 

Hella/Behr is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMWs:
2004-2005 E60 BMW 525i 530i (M54)- Only for Automatic Transmission
2006-2010 E60 BMW 525i 528i 530i (N52)* - Only for Automatic Transmission
2006-2010 E60 BMW 550i - Only for Automatic Transmission
2006-2011 E63 BMW 650i - Only for Automatic Transmission
10/2005-2008 E65 BMW 750i 750li

* - must see link above about N52 fitments.

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Mahle-Behr Radiator - E60, E63, E64
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:340697
Part#: 17112282732
Ships on Jun 22, 2026
$ 413.99 USD
$ 413.99 USD
Suitable for manual or SMG transmission