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BMW Cooling System Parts & Accessories for BMW X Series E84 (2013-2015)

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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

T#:38621407

Part#: BMS-TCBS

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$ 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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Thermostat With Aluminum Housing - N20

10X Entries Into Our F80 M3 Sweepstakes

T#:30828065

Part#: 11538635689M

In Stock

Sale - Save 20% $ 125.99

This product was last offered at the strikethrough price on
05-03-2026

$ 100.36 USD

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$ 125.99

This product was last offered at the strikethrough price on
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$ 100.36 USD

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Thermostat

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T#:26538316

Part#: 11537601158

In Stock

Sale - Save 20% $ 95.99

This product was last offered at the strikethrough price on
05-03-2026

$ 76.70 USD

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$ 95.99

This product was last offered at the strikethrough price on
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$ 76.70 USD

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Low Temperature Thermostat - 97C

10X Entries Into Our F80 M3 Sweepstakes

T#:33612901

Part#: 11537601158-97C

In Stock

Sale - Save 20% $ 95.99

This product was last offered at the strikethrough price on
05-03-2026

$ 76.70 USD

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$ 95.99

This product was last offered at the strikethrough price on
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$ 76.70 USD

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Coolant Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:30729015

Part#: 17127599450

Ships in 9 Business Days

Sale - Save 20% $ 50.99

This product was last offered at the strikethrough price on
05-03-2026

$ 40.79 USD

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$ 50.99

This product was last offered at the strikethrough price on
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$ 40.79 USD

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Coolant Expansion Tank Cap

10X Entries Into Our F80 M3 Sweepstakes

T#:36032339

Part#: 17117639020

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Sale - Save 20% $ 14.99

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$ 11.99 USD

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$ 14.99

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$ 11.99 USD

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Bremmen Water Pump Bolt - M8x34 - BMW N20 2.0L

10X Entries Into Our F80 M3 Sweepstakes

T#:36913363

Part#: 11517602125

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Sale - Save 35% $ 4.99

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05-03-2026

$ 3.26 USD

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$ 4.99

This product was last offered at the strikethrough price on
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$ 3.26 USD

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This external torx head screw is a direct replacement for the costly OEM screw, which must be replaced during every water pump service.

Quantity 3 required for complete replacement.

N54 Coolant Hose/Elbow - 11537545665

10X Entries Into Our F80 M3 Sweepstakes

T#:36100140

Part#: 11537545665

In Stock

Sale - Save 23% $ 16.99

This product was last offered at the strikethrough price on
05-03-2026

$ 13.05 USD

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$ 16.99

This product was last offered at the strikethrough price on
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$ 13.05 USD

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This Coolant Hose is located behind the thermostat on N54-equipped BMW models. Due to weak rubber construction and its close proximity to the bank one turbocharger, this hose is a common failure item on high-mileage vehicles.

Whether you are replacing a failed hose or preemptively servicing your cooling system, choose this high-quality replacement from Bremmen Parts for a lasting repair.

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Coolant Expansion Tank

5X Entries Into Our F80 M3 Sweepstakes

T#:54959296

Part#: 314 223 0004

Ships on Sep 22, 2026

$ 75.99 USD

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$ 75.99 USD

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This Meyle original-quality expansion tank provides a durable, reliable solution to get your cooling system back to performing exactly as it should.

Meyle Thermostat Housing - BMW E84, F10, F22, F26, F30, F31, F32, F33...

5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

T#:5704976

Part#: 11538635689

Ships on Sep 16, 2026

$ 72.99 USD

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$ 72.99 USD

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When it comes to your temperature gauge on your instrument cluster your thermostat plays a large role in where that temperature needle ends up. There are many cases where the vehicle will run a bit cool according to that gauge, oftentimes meaning the thermostat has failed and is stuck open allowing coolant to continuously circulate. The other more damaging side is when it closes shut and keeps the engine from cooling down properly. All vehicles are designed to operate in an ideal temperature range for the ultimate efficiency, life, and performance.

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Coolant Expansion Tank Cap

T#:379621

Part#: 17117639020

Ships in 3 Business Days

$ 17.99 USD

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$ 17.99 USD

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Quality aftermarket coolant expansion tank cap.

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