BMW X5: Common Problems, Fault Codes & Repairs Everything for the BMW X5 in one place — its common problems and reliability, the fault codes owners see most, and the tools to diagnose them. BMW X5 fault codes BMW X5 P0420 BMW X5 specs & capacities BMW X5 — Fuse box location & guideBMW X5 — Oil capacity & typeBMW X5 — Tire pressureBMW X5 — Towing capacityBMW X5 — Bolt pattern & wheel sizes Recommended tools Automotive MultimeterCompression TesterBattery & Charging System Tester Read your code: OBD-II scanners →