there is a timing chain on the car no belt.
Have a look at this site for a detailed guide to changing the timing belt and other servicing matters. http://www.taligentx.com/passat/
Timing Belt.
No belt it is a chain - no changing needed
You should change the timing belt on the 2003 passat v6 after 100,000 miles is reached.
In a 2002 Volkswagen Passat the 2.8 litre V6 engine has a timing BELT
Steps to changing the timing belt on a 2005 VW Jetta Wagon 1.9 TDI?
timing chain
Yes
the book says every 60,000 miles or four years whichever is the sooner.Rob
What year
Changing a timing belt is very complex with hundreds of details. Directions for changing the timing belt can be obtained when you purchase the timing belt.