Volkswagen Passat: Common Problems, Fault Codes & Repairs Everything for the Volkswagen Passat in one place — its common problems and reliability, the fault codes owners see most, and the tools to diagnose them. Volkswagen Passat fault codes Volkswagen Passat P0171 Volkswagen Passat specs & capacities Volkswagen Passat — Fuse box location & guideVolkswagen Passat — Oil capacity & typeVolkswagen Passat — Tire pressureVolkswagen Passat — Bolt pattern & wheel sizes Recommended tools Automotive MultimeterCompression TesterBattery & Charging System Tester Read your code: OBD-II scanners →