The paracitic load on the Jetta shouldn't be over 15 ma. 42 is too much as it is almost 1/2 amp. The best way to check the draw is to start with the alternator by disconnecting wires one at a time and see if it drops.
The amp meter should be in series with the negative battery lead on the amp scale. If you don't have a digital voltmeter you canb get a good one for a bout $15.00
The VW alternators are famous for having a small drain problem. If it is good pull one fuse at a time and see when th current drops, When you isolate the circuit let me know. Good luck
Monday, May 1st, 2006 AT 2:24 PM