Mahle-Behr BMW Cooling System Parts & Accessories for BMW 5 Series E61 (2006-2010)

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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 - E82 E9X E60 X3 Z4 with N52 N54 engines ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:341203
Part#: 11537549476
In Stock at Vendor
$ 135.19 USD
Free Shipping
$ 135.19 USD
Free Shipping
Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N51 N52 N53 N54 6 cylinder engines and is an OEM Behr part. 

The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended). 

This thermostat fits the following BMWs:
2008+  E82  BMW 128i 135i
2007+  E9X  BMW 325i 325xi 328i 328xi 330i 335i 335xi
2006+  E60  BMW 525i 525xi 528i 528xi 530i 530xi 535i 535xi
2006+  X3  BMW X3 3.0i X3 3.0si
2006+  Z4  BMW Z4 3.0i Z4 3.0si
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Mahle-Behr Fan Assembly - With Frame - E60, E61
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:377193
Part#: 17427603658
In Stock at Vendor
$ 957.10 USD
$ 957.10 USD
Mounted in behind the radiator, referred to by BMW as the "Puller Fan"
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
$ 137.81 USD
Free Shipping
$ 137.81 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 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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E60 525i 528i 530i Automatic OEM Behr Radiator
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:11938
Part#: 17117534914
In Stock at Vendor
$ 316.59 USD
Free Shipping on orders $49 and up
OEM BEHR brand replacement radiator for all E60 525i/xi 528i/xi, 530i/xi with the N52 engine. This radiator is made by BEHR, an original equipment supplier to BMW. BEHR radiators are what we use our own BMWs and customer installs. We've found the BEHR radiator has the highest lifespan, least amount of manufacturing defects, and best continued cooling performance. Simply put, you do not want anything else in your BMW but a BEHR brand radiator.

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.​

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

This item fits the following BMWs:
2006-2010 E60 BMW 525i 525xi 528i 528xi 530i 530xi - Only for Automatic Transmission
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OEM Behr Radiator - Manual Transmission - E60 525i 528i 530i ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Mahle-Behr - Corporate Logo
T#:15084
Part#: 17117534915
Ships on Jul 20, 2026
$ 306.99 USD
$ 306.99 USD
OEM BEHR brand replacement radiator for all E60 525i/xi 528i/xi, 530i/xi with the N52 engine. This radiator is made by BEHR, an original equipment supplier to BMW. BEHR radiators are what we use our own BMWs and customer installs. We've found the BEHR radiator has the highest lifespam, least amount of manufacturing defects, and best continued cooling performance. Simply put, you do not want anything else in your BMW but a BEHR brand radiator.

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:
2006-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive - Only for Manual Transmission
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