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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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Titanium Coolant Bleeder Screw Upgrade

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T#:38621407

Part#: BMS-TCBS

Back Ordered

$ 25.00 USD

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$ 25.00 USD

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Replace your fragile OEM plastic coolant bleeder screw, which is prone to cracking and failure, with a premium titanium upgrade built for strength and style under the hood. Factory plastic components weaken over time due to constant heat cycles, leading to brittleness and potential failure. Our titanium replacement delivers superior durability, being twice as strong as aluminum yet 45% lighter than steel, ensuring unmatched resilience and long-term reliability for your coolant system. More than an upgrade, it’s a must-have for engine longevity. CNC-machined from solid titanium, each screw features a laser-etched Burger Motorsports logo and is hand-burned to create unique color patterns—no two are alike. A heavy-duty replacement O-ring is included for a perfect fit.

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Victor Reinz Water Pump Gasket - E53, E60, E63, E64, E65, E66, E70, F...

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T#:19157

Part#: 11517508535

In Stock at Vendor

$ 26.99

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

$ 23.99 USD

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$ 23.99 USD

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PROFILE-GASKET 11517508535 Manufactured by Reinz

Victor Reinz Water Hose O-Ring Seal - N52

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T#:388664

Part#: 11517514942

In Stock at Vendor

$ 4.99 USD

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$ 4.99 USD

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Is your water pump hose leaking where the hose connects to the engine? Most likely this seal has failed and needs to be replaced.

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

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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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$ 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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$ 238.99 USD

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Returns coolant from the engine to the radiator

Victor Reinz O-Ring

Found at the flange end of the upper thermostat hose

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T#:388687

Part#: 11537545278

Ships in 3 Business Days

$ 6.11 USD

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$ 6.11 USD

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Seals your cooling system

O-RING

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T#:580584

Part#: C32348

In Stock

$ 3.99

This product was last offered at the strikethrough price on
05-07-2026

$ 2.99 USD

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$ 2.99 USD

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

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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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$ 75.99 USD

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Connects the lower expansion tank connection to the transmission heat exchanger

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