Volkswagen Jetta: Common Problems, Fault Codes & Repairs Everything for the Volkswagen Jetta in one place — its common problems and reliability, the fault codes owners see most, and the tools to diagnose them. Volkswagen Jetta fault codes Volkswagen Jetta P0171Volkswagen Jetta P0300Volkswagen Jetta P0401Volkswagen Jetta P0420Volkswagen Jetta P0455 Volkswagen Jetta specs & capacities Volkswagen Jetta — Fuse box location & guideVolkswagen Jetta — Oil capacity & typeVolkswagen Jetta — Tire pressureVolkswagen Jetta — Bolt pattern & wheel sizes Recommended tools Automotive MultimeterCompression TesterBattery & Charging System Tester Read your code: OBD-II scanners →