Use only VW "pink" coolant!!! Rempve the coolant tank cap on a cold engine. There is a drain petcock on the driver's side of the 1.8T engined radiator. There is also an engine block drain on the driver's side of the engine near the oil filter flange. Drain the fluid and dispose of properly. Refill with genuine "pink" VW coolant after securing thr drains - DO NOT OVERTIGHTEN! Start engine, attain operating temperature, check for leaks.
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The 2003 Volkswagen Passat has 20 valves.
VW will tell you that you must use their specific yellow coolant. You don't. Just use the top of the line Prestone that is for all engine types. Don't add water!! It runs on pure coolant...
The height of the 2003 Volkswagen Passat is 4 ft. 9.6 in. (57.6 in.).
The curb weight of the 2003 Volkswagen Passat is 3212 lbs..
If you have a 1999 Passat V6, the coolant temperature sensor is located in the lower radiator hose.
A 2003 VW Passat will have no heat when the heater core is defective or obstructed. This prevents hot air from getting into the vehicle's cabin.
The 2003 Volkswagen Passat runs on premium unleaded (recommended).