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MINI factory replacement Radiator Expansion Tank / Coolant Reservoir with cap.

Fits the following models:

2002-2006 R50 MINI Cooper and R53 Cooper S Hatchback
2005-2008 R52 MINI Cooper and Cooper S Convertible

Select model.

Don't risk corrosive chemicals spilling all over your engine. If your radiator expansion tank is cracked and 'weeping' fluid, replace it immediately with this genuine replacement.

New tank includes a new cap.

For the Cooper Cap only, see NME7674.

For the Cooper S Cap only, see NME7664.

For the factory replacment hoses that attach to the expansion tank, see NME7601-P.

For a listing of all Cooling System replacement parts, click here.

CAUTION: NEVER open the expansion tank cap when the engine is hot!! Wait until the engine is cool to the touch.

Mini Cooper Coolant Tank Factory Oem Expansion Tank

Mini Cooper Coolant Tank Factory Oem Expansion Tank

Mini Cooper Coolant Tank Factory Oem Expansion Tank

Mini Cooper Coolant Tank Factory Oem Expansion Tank

Mini Cooper Coolant Tank Factory Oem Expansion Tank
Select a Model below for more info:
MINI Factory replacement Radiator Expansion Tank / Coolant Reservoir with Cap.

Fits the following MINI Cooper non-S models:

2002-2006 R50 MINI Cooper Hatchback
2005-2008 R52 MINI Cooper Convertible

Don't risk corrosive chemicals spilling all over your engine. If your radiator expansion tank is cracked and 'weeping' fluid, replace it immediately with this genuine replacement.

New tank includes a new cap.

The cooling system expansion tank is where you fill the radiator with coolant.

For the Cooper Cap, see NME7674.

For the Cooper S Cap, see NME7664.

For a listing of all Cooling System replacement parts, click here.

CAUTION: NEVER open the expansion tank cap when the engine is hot!! Wait until the engine is cool to the touch.

MINI Factory replacement Radiator Expansion Tank / Coolant Reservoir with Cap.

If your MINI Cooper was produced before 2005 it is likely that the radiator Expansion Tank will crack along the seams due to heat and pressure build up. All factory Original parts now supplied are an improved design that greatly reduces the chase of this happening again. Keep an eye on the later ones as it could happen that you find yourself down on water. The good news is that the leak is typically very small and thus a very slow leak. The bad news is that it will be hard to see and thus even if you have a later model car that always seem to need water- Replace the Radiator Expansion Tank before it is too late. The other good news is that the replacement tank is relatively inexpensive and can be changed in under 30 minutes.

Fits the following Cooper S models:

2002-2006 R53 MINI Cooper S Hatchbacks
2005-2008 R52 MINI Cooper S Convertibles

For the Mini Cooper S replacement expansion tank, see NME7662.

Don't risk corrosive chemicals spilling all over your engine. If your radiator expansion tank is cracked and 'weeping' fluid, replace it immediately with this genuine replacement.

New tank includes a new cap.

The stock BMW MINI Cooper S radiator expansion tank is easy to replace. White/cream color, the MINI Cooper S cooling system expansion tank is mounted on the firewall of the engine compartment. The cooling system expansion tank is where you fill the radiator with coolant.

For theMini  Cooper Cap, see NME7674.

For the Mini Cooper S Cap, see NME7664.

For a listing of all Cooling System replacement parts, click here.

CAUTION: NEVER open the expansion tank cap when the engine is hot!! Wait until the engine is cool to the touch.

MINI factory replacement Radiator Expansion Tank / Coolant Reservoir with cap.

Fits the following models:

2002-2006 R50 MINI Cooper and R53 Cooper S Hatchback
2005-2008 R52 MINI Cooper and Cooper S Convertible

Select model.

Don't risk corrosive chemicals spilling all over your engine. If your radiator expansion tank is cracked and 'weeping' fluid, replace it immediately with this genuine replacement.

New tank includes a new cap.

For the Cooper Cap only, see NME7674.

For the Cooper S Cap only, see NME7664.

For the factory replacment hoses that attach to the expansion tank, see NME7601-P.

For a listing of all Cooling System replacement parts, click here.

CAUTION: NEVER open the expansion tank cap when the engine is hot!! Wait until the engine is cool to the touch.

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Related Technical Articles:
Created: January 15, 2015
There are a number of various parts that make up the Cooling system on any MINI Cooper. The most often though of in most cars is the radiator. But in the history of the MINI Cooper the reality is the Coolant Expansion tank is the center of attention.
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