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BMW Cooling System Parts & Accessories for MINI

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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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Radiator Expansion Tank - Behr

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T#:579568

Part#: 376737181

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$ 65.86 USD

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$ 65.86 USD

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Aluminum Radiator

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T#:592125

Part#: 17112751276

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9% off MSRP $ 306.68

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 279.68 USD

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9% off MSRP

$ 306.68

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 279.68 USD

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OEM Behr Radiator Expansion Tank - MINI Cooper R50 R52

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T#:19450

Part#: 17107509071

Ships in 3 Business Days

$ 36.99 USD

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$ 36.99 USD

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This high quality BEHR brand expansion tank is used on MINI Cooper R50 R52, and is a common failure item. BEHR was the original equipment supplier to BMW, so you know the BEHR made expansion tank will be the highest quality available. Be cautious of competitors selling this part for less -- is it a BEHR? Probably not. We only carry the BEHR brand expansion tank as it is the only one we use in our own MINIs. If you are overhauling your coolant system, now is the time to consider preventative replacing this expansion tank. These are known to go bad, causing a leak which can leave you stranded. We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.

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 MINIs:
2002-2006 R50 MINI MINI Cooper
2005-2008 R52 MINI MINI Cooper Convertible.

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Aluminum Radiator 376754221

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T#:592124

Part#: 17112751275

Ships in 10 Business Days

$ 195.99 USD

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$ 195.99 USD

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MINI Cooper S Intercooler Resonator Delete Hose - Red - R55 / R56 / R...

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T#:23383280

Part#: FMR56RDH-R

Ships in 10 Business Days

Sale - Save 10% $ 171.99

This product was last offered at the strikethrough price on
07-01-2026

$ 154.08 USD

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Sale - Save 10%

$ 171.99

This product was last offered at the strikethrough price on
07-01-2026

$ 154.08 USD

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Elevate your BMW MINI Cooper S's performance with the Intercooler Resonator Delete Hose designed to replace two OEM hoses and a sound resonator. Crafted for improved airflow and engine dynamics, this hose is a game-changer.

Key Benefits:

Enhanced Performance: Witness torque improvements of 10 to 15 ft/lbs on Forge's test car, potentially boosting horsepower when combined with other performance modifications.
Reduced Resistance: The smooth bore hose minimizes resistance by replacing the OEM resonator, ensuring improved airflow.
Engine Responsiveness: Experience noticeable changes in engine acceleration, attributed to enhanced torque and potential horsepower gains.
Customizable Options: Available in red, blue, or black, enabling a stealthy installation while adding a personalized touch.
Durability: Engineered to withstand higher temperatures and pressures compared to the original hose, ensuring long-lasting performance.

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Coolant Expansion Tank - R56 MINI Cooper S

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T#:46488

Part#: 17137823626

Back Ordered

$ 67.99 USD

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$ 67.99 USD

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This high-quality BEHR brand expansion tank is used on MINI Cooper R55 R56 and is a common failure item. BEHR was the original equipment supplier to BMW, so you know the BEHR made expansion tank will be the highest quality available. Be cautious of competitors selling this part for less -- is it a BEHR? Probably not. We only carry the BEHR brand expansion tank as it is the only one we use in our own MINIs. If you are overhauling your coolant system, now is the time to consider preventative replacing this expansion tank. These are known to go bad, causing a leak which can leave you stranded. We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of fewer than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.

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 MINIs:
2007+ R56 MINI MINI Cooper, MINI Cooper S
2007+ R55 MINI MINI Cooper Clubman, MINI Cooper S Clubman
2007+ R57 MINI MINI Cooper Convertible, MINI Cooper S Convertible,
2011+ R60 MINI MINI Cooper Countryman, MINI Cooper Countryman S

This item fits the following BMWs:
2015+ I01 BMW i3
2015+ I12 BMW i8

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MINI R55 to R59 Forge Silicone Coolant Hose Set Black - Set Of 8 ...

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T#:31423688

Part#: FMKCR56

Ships in 3 Business Days

Sale - Save 10% $ 472.99

This product was last offered at the strikethrough price on
07-01-2026

$ 425.21 USD

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Sale - Save 10%

$ 472.99

This product was last offered at the strikethrough price on
07-01-2026

$ 425.21 USD

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MINI Cooper S Intercooler Resonator Delete Hose - Blue

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T#:27871802

Part#: FMR56RDH-B

Ships in 5 Business Days

Sale - Save 10% $ 171.99

This product was last offered at the strikethrough price on
07-01-2026

$ 154.08 USD

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Qty

Sale - Save 10%

$ 171.99

This product was last offered at the strikethrough price on
07-01-2026

$ 154.08 USD

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Aluminum Radiator

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T#:591313

Part#: 17117617635

Ships on Jul 27, 2026

$ 305.99 USD

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$ 305.99 USD

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Radiator

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T#:13990899

Part#: 70827992NA

Ships on Jul 27, 2026

$ 308.99 USD

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$ 308.99 USD

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Air Conditioning Condenser

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T#:13891860

Part#: 70827753NA

Ships on Jul 27, 2026

$ 252.99 USD

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$ 252.99 USD

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Aluminum Radiator

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T#:2242246

Part#: 17117617639

Ships on Jul 27, 2026

$ 455.99 USD

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$ 455.99 USD

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Aluminum Radiator

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T#:13924854

Part#: 70827885NA

Ships on Jul 27, 2026

$ 294.99 USD

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$ 294.99 USD

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Fan Housing With Fan

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T#:642097

Part#: 17427646411

Ships on Jul 27, 2026

$ 365.99 USD

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$ 365.99 USD

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Aluminum Radiator

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T#:13924865

Part#: 70827952NA

Ships on Jul 27, 2026

$ 316.99 USD

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$ 316.99 USD

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Aluminum Radiator

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T#:13957905

Part#: 70827989NA

Ships on Jul 27, 2026

$ 210.99 USD

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$ 210.99 USD

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Aluminum Radiator

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T#:13957904

Part#: 70827983NA

Ships on Jul 27, 2026

$ 292.99 USD

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$ 292.99 USD

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