Features: 1.Coolant water bottle cap, perfectly fit for Mini One & Cooper 2001?2006. 2.Prevent the water in the fluid reservoir from overflowing and ensure driving safety. 3.High quality ABS material, excellent heat resistance, sturdy and durable to use. 4.Easy to install, no complicated tools required, convenient to use. 5.Original standard, direct replacement for the old or coolant water bottle cap. Specification: Item Type: Coolant Water Bottle Cap Material: ABS Color: Black Fitment: Fit for Mini One & for Cooper 2001-2006 Instruction: 1. 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. 2. 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. PackageList: 1 x Coolant Water Bottle Cap