VOLKSWAGEN MPV SUV Year: 2001-09 Engine: AWC
Thread Size: 58mm
Reference: D-VWG, TP1-20
Original Equipment Quality
When the coolant temperature drops, the coolant will contract and create a vacuum. At this time, the vacuum valve opens and draws coolant from the reservoir tank back into the radiator; bringing it to the proper level. The radiator cap seals the cooling system preventing any air to enter the system.
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