On the newer cars like the Jetta there is no timing adjustment as it is set on the fly y the engine computer in accordance with sensor inputs.
Check
Check the discussion page.
A knock sensor sends a voltage signal to regulate ignition timing. In a Jetta, it is typically located under the air intake manifold.
I thought that timing was measured off the crank gear and the cam gear. Not the flywheel :P
96 jetta timing marks
2000 Jetta VR6 has a timing chain, NOT a timing belt
how to change the timing belt on a 2003 jetta
There is no timing set for a 2004 jetta, the timing is automatically set by the ECM.
The warning lights on a 2006 Volkswagen Jetta can indicated problems ranging from incorrect ignition timing to low air pressure in the tires. An OBDII code reader can be connected to analyze the problem.
Could be your battery, starter, ignition, check them... would start with the battery !
the timing belt may have jumped a sprocket check all the timing belt marks to assure proper tinning.
2004 vw jetta 2.0 how do I find camshaft timing mark