BEW engine timing belt replacement procedure from MOGolf (as demonstrated on a 2004 Jetta)
Based on the procedure published by Volkswagen, but modified for the “average” shadetree mechanic. Some special tools are required. Tools can be sourced from www.metalnerd.com, or genuine VW (and OEM suppliers) tools from www.zelenda.com, www.samstagsales.com, and other vendors of tools for VW vehicles.
Those tools are:
serpentine tensioner locking pin
crank locking tool T10050
timing belt tensioner locking pin
camshaft locking pin
timing belt tensioner pin tool (Metalnerd brand shown)
You will also need a means of supporting the engine from above or below, with some mobility forward and aft. The following steps are in the sequence I recommend. It is easier than the sequence published. First, make the coolant expansion bottle “mobile”. The coolant expansion bottle is the round ball on the right side of the engine compartment with a blue cap. Disconnect the coolant line and cap off the nipple.
Get pdf BEW engine timing belt replacement procedure from MOGolf (as demonstrated on a 2004 Jetta)