One problem related to wiring has been reported for the 2004 Volkswagen Jetta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Volkswagen Jetta based on all problems reported for the 2004 Jetta.
The insulation on the wiring of the left headlight is deteriorated and falling off leaving the wires bare and at risk of shorting out.