2004 Volkswagen Jetta TDI Q&A
2004 Volkswagen Jetta TDI Question: alternator wiring harness
TDI has 70k miles on it. There is a small plastic cover included in the plastic battery cover. The small cover (fuse box cover?) has melted a hole in it and the dealer says I need to replace the alternator wiring harness which is generating excessive heat. The cost is over $600. Why would the wiring harness generate heat, wouldn't there be another underlying issue? - flabry30
Had the same thing with the 2004 gas model, they used crappy wiring. It builds up resistance and heats up, hopefully your little 110 amp fuse in that box blew or you may need an alternator and or battery as well. - Visitor
Okay first of all, the engine was ran low on oil, obvioulsy causing it to heat up. I understand that this most likely killed all the sensors. The engine turns over, therefore it is not ceased. (Tha...