ITEM NAME:Pack of 2 Radiator Tank Water Bottle Cap For BMW MINI ONE &Cooper 2001-2006 Description: Mini expansion tank cap. This cap is for the clear/white plastic expansion tank at the back of the engine. It is NOT a radiator cap. The Expansion cap is found on top of a plastic bottle in the engine bay, it is at the back near the windscreen wipers and to the left of the battery. Specification: One Replacement MINI Radiator Expansion Coolant Water Bottle Cap for: MINI ONE & Cooper 1.6 petrol 2001 2002 2003 2004 2005 2006 MINI ONE & Cooper Cabrio 1.6 petrol 2004 2005 2006 2007 2008 DOES NOT FIT DIESELS OR COOPER S (Big vent in front of bonnet) Package Includes: 2 x Mini expansion tank cap Note: Never remove the cap from a hot engine, the cap may 'fly off' on releasing and hot coolant will burn your hand, if you must remove the cap, cover the cap with a suitable cloth, lift the cap slowly to release the pressure, then carefully remove the cap, do not put finger in hot coolant..DOES NOT FIT DIESELS OR COOPER S (Big vent in front of bonnet). Never remove the cap from a hot engine, the cap may 'fly off' on releasing and hot coolant will burn your hand, if you must remove the cap, cover the cap with a suitable cloth, lift the cap slowly to release the pressure, then carefully remove the cap, do not put finger in hot coolant.