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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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BMW N54 N55 S55 Mosselman Thermostat Installation Kit

T#:4799665

Part#: THERMINSTALLKT

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06-15-2026

$ 21.64 USD

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BMW N54 N55 S55 Mosselman Thermostat Installation Kit is designed to ensure a seamless installation of the Mosselman thermostat on BMW engines. This comprehensive kit from Turner Motorsport includes all necessary gaskets and components, guaranteeing a reliable and precise installation for optimal engine performance.

Complete Kit: Includes all essential gaskets and components required for a hassle-free thermostat installation.
Optimal Performance: Ensures proper installation of the Mosselman thermostat, leading to improved engine cooling efficiency and performance.
High-Quality Components: Gaskets and parts are manufactured to meet high standards of durability and reliability.
Precision Fit: Engineered to match OEM specifications, providing a perfect fit and reliable performance.
Ease of Installation: All necessary parts are included, simplifying the installation process and reducing the need for additional purchases.

Upgrade your BMW's cooling system with the Mosselman Thermostat Installation Kit from Turner Motorsport, ensuring a top-quality, reliable setup for your engine.

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Thermostat Replacement kit - 90C

T#:15744051

Part#: 82142209769KT

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05-03-2026

$ 142.76 USD

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$ 142.76 USD

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Turbo Coolant Line Kit - F70, E71, F15, F16

T#:41661213

Part#: 11537577014TKT

Ships in 3 Business Days

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05-03-2026

$ 316.08 USD

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$ 316.08 USD

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Thermostat Installation Kit with Thermostat - N54, N55, S55

T#:55353595

Part#: OTN54.T85KT3

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$ 390.23 USD

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High oil temperatures are the ultimate enemy of your engine's longevity and performance. If you want to keep pushing your BMW to the limit you need to manage the heat.

Thermostat & Water Pump Replacement Kit - BMW N62 4.8L

T#:30397457

Part#: 11517586779KT2

Ships in 1 Business Day

$ 273.99

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05-12-2026

$ 259.99 USD

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Maintain your BMW's cooling system and avoid costly repairs with our comprehensive Water Pump and Thermostat Replacement Kit, meticulously crafted by the experts at Turner Motorsport! Designed to service BMW models with the N62 engine, this kit ensures your vehicle runs at optimal temperature, preventing overheating and extending engine life.

Key Benefits:

All-Inclusive Kit: This package includes everything you need for a complete cooling system overhaul, saving you time and effort sourcing individual components. High-Quality Components: Each part in this kit is manufactured to meet or exceed OEM standards, guaranteeing reliable performance and longevity. Optimal Cooling Performance: Regularly replacing your water pump and thermostat every 60,000 miles is crucial for maintaining peak cooling efficiency. Our kit ensures your BMW's engine stays within the ideal temperature range, preventing overheating and potential engine damage. Enhanced Reliability: By including premium components like the Wahler Thermostat and Graf Water Pump, this kit provides enhanced durability and peace of mind. Kit Contents:

Wahler Thermostat (Part #11537586885): Renowned for its precision and reliability, ensuring your engine maintains the correct operating temperature. Graf Water Pump (Part #11517586779): High-performance pump designed for consistent and efficient coolant circulation. Genuine BMW Hex Bolts (M6x25) (Part #07119905400): Essential hardware for secure installation. Genuine BMW Hex Bolts (M6x40) (Part #07119904525): Ensures all components are firmly in place. Genuine BMW Coolant/Antifreeze (Diluted, 1 Gallon) (Part #82141467704): Formulated specifically for BMW cooling systems, providing optimal protection against corrosion and freezing. Upgrade your BMW N62 cooling system with this expertly curated Water Pump and Thermostat Replacement Kit. Perfect for maintaining the health and efficiency of your engine, this kit is an essential investment for any BMW enthusiast. Order now from Turner Motorsport and ensure your vehicle performs at its best.

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Water Pump And Thermostat Kit - E70 X5 N52 3.0L

For vehicles with adaptive drive or auto climate control with 4 zone control

T#:24079594

Part#: E70N52WPTKT

Ships in 1-2 days

$ 896.99

This product was last offered at the strikethrough price on
06-18-2026

$ 887.99 USD

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BMW's electric water pumps are known to fail around 80,000 to 100,000 miles, leaving you stranded on the side of the road. Don't risk overheating your engine, service your water pump and thermostat with this basic kit! Kit includes: OEM Thermostat Genuine BMW Water pump Genuine BMW Coolant - 1 Gallon Mounting hardware required for both the thermostat and water pump

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Bav Auto Spill-Proof Coolant / Antifreeze Funnel

T#:580395

Part#: B8800082

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05-03-2026

$ 28.04 USD

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$ 28.04 USD

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Multiple adapters include to fit a variety of vehicles.

Race German Coolant Temperature Sender Adapter - M12x1.5

T#:6827887

Part#: RGCTSAM12

Ships in 3 Business Days

$ 35.99 USD

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$ 35.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for M12x1.5 sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor

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Bav Auto Fan Clutch Wrench - 32mm

T#:580348

Part#: B8800019

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05-03-2026

$ 23.99 USD

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Used to remove your fan clutch

Race German Coolant Temperature Sender Adapter - 1/8NPT

T#:6827888

Part#: RGCTSA1/8NPT

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$ 35.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for 1/8NPT sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor

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Bav Auto Coolant Expansion Tank - With Level Sensor - E70 X5, E71 X6 ...

T#:638093

Part#: 17138621092

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05-03-2026

$ 48.79 USD

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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

T#:18003829

Part#: 11517805811

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$ 47.19 USD

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Bav Auto Angled Hose Pinch Plier Set - 2pc

T#:580379

Part#: B8800058

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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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Vaico Coolant Hose - Trans Cooler to Radiator - BMW E70 X5 N52 N62 ...

We Price Match - Give Us A Call or Chat!

T#:595408

Part#: 17127537101

In Stock at Vendor

$ 57.99

This product was last offered at the strikethrough price on
04-06-2026

$ 55.99 USD

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Returns coolant from the transmission heat exchanger to the radiator

Vaico Radiator Return Coolant Hose - BMW E70 X5 35d M57

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T#:21965996

Part#: 17127794153

In Stock at Vendor

$ 245.99

This product was last offered at the strikethrough price on
05-08-2026

$ 238.99 USD

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Returns coolant from the engine to the radiator

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

T#:639833

Part#: 13621433076

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05-03-2026

$ 11.99 USD

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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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Vaico Expansion Tank Coolant Hose - BMW E70 X5 35d M57

T#:41052807

Part#: 17127808117

Special Order: No Guaranteed ETA

$ 230.99

This product was last offered at the strikethrough price on
04-15-2026

$ 75.99 USD

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Connects the lower expansion tank connection to the transmission heat exchanger

Meyle Engine Coolant Thermostat - BMW FXX, GXX

T#:52797701

Part#: 3282280016

Special Order: No Guaranteed ETA

$ 47.99 USD

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$ 47.99 USD

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This MEYLE thermostat ensures your engine stays at the perfect temperature for efficiency and power.

Auxillary Fan Switch

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T#:4934936

Part#: 3148210000

Special Order: No Guaranteed ETA

$ 18.99 USD

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$ 18.99 USD

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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. Also known as the coolant temperature sending unit, comes with related o-ring

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Meyle Coolant Expansion Tank - BMW E70 E71

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T#:35998394

Part#: 17138621092

Special Order: No Guaranteed ETA

$ 85.99 USD

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$ 85.99 USD

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The coolant expansion tank in your vehicle provides extra space for fluid expansion and contraction due to temperature changes. Because it regularly experiences these fluctuations, it can become prone to cracks or breaks over time. To ensure that all coolant remains within the system, it's important to replace the tank if it has been damaged, such as with cracks, broken nipples, or damaged mounting points.

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Fluid Level Sensor

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T#:5973204

Part#: 17117546548

Special Order: No Guaranteed ETA

$ 13.99 USD

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$ 13.99 USD

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MEYLE-ORIGINAL: True to OE fluid level sensor. Used in multiple locations. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 17117546548

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Meyle Coolant Hose - BMW N52 3.0L

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T#:35829327

Part#: 11537521049

Special Order: No Guaranteed ETA

$ 19.99 USD

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$ 19.99 USD

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Over time, coolant hoses in your vehicle can deteriorate due to prolonged exposure to high temperatures from the coolant. Made of reinforced rubber, these hoses are prone to issues such as splitting at hose clamps, swelling, cracking, or even breaking, which can leave you stranded. It's important to replace them at the first sign of wear to prevent coolant loss and ensure your engine stays properly cooled.

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Meyle Thermostat - 88 Degrees Celsius

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T#:5958681

Part#: 11517805811

Special Order: No Guaranteed ETA

$ 60.99 USD

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$ 60.99 USD

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88 degrees celsius, includes gasket and o-rings If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles.

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Electric Water Pump

T#:54959290

Part#: 313 220 0017

Special Order: No Guaranteed ETA

$ 326.99 USD

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$ 326.99 USD

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Whether you are daily driving or doing a preventative cooling overhaul, this high-quality replacement pump includes fresh mounting hardware to ensure your BMW's cooling system remains reliable.

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