You need to support the engine from underneath and then remove the passenger motor mount. The engine then needs to be raised to remove
the water pump from the engine... the serpentine belt tensioner is collapsed via a bolt that is threaded into the tensioner.

I can post more info later... once I know someone is actually reading my replies.

Thomas

hello thank u for the info u gave me, but please can u send me more info how to replace water pump. my car is jetta gli 2004 vr6 2.8L