31 distinct codes across 34 real BMW diagnostics.
31 distinct codes across 34 real diagnostics on BMW, including the BMW-specific ones no generic code list can decode.
BMW-specific codes
These are manufacturer-specific, which means the same code on another marque is a different fault. That is exactly why they have no page of their own and no entry in any generic code list. Scoped to BMW and ranked by how often we have actually seen them, they are a claim we can stand behind.
- P16BC, seen in 2 BMW diagnostics
- C1241, seen in 1 BMW diagnostic
- P1634, seen in 1 BMW diagnostic
- P16A1, seen in 1 BMW diagnostic
- U1008, seen in 1 BMW diagnostic
Standard codes we see most on BMW
These are standardised, so they mean the same thing on every vehicle. The counts are what we see on BMW specifically.
- P0011, A camshaft position timing over-advanced or system performance, bank 1
- P0012, A camshaft position timing over-retarded, bank 1
- P0045, Turbocharger boost control solenoid circuit open
- P0299, Turbocharger underboost condition
- P0300, Random or multiple cylinder misfire detected
- P2002, Diesel particulate filter efficiency below threshold, bank 1
- P20BD, not individually documented
- P242E, not individually documented
- B210A, not individually documented
- B210D, not individually documented
- P0002, Fuel volume regulator control circuit range/performance
- P0013, B camshaft position actuator circuit, bank 1
- P0047, Turbocharger boost control solenoid circuit low
- P0069, MAP to barometric pressure correlation
- P0117, Engine coolant temperature circuit low
- P0401, Exhaust gas recirculation flow insufficient
- P0471, Exhaust pressure sensor range/performance
- P0562, System voltage low
- P0741, Torque converter clutch circuit performance or stuck off
- P24C7, not individually documented
- U0100, Lost communication with ECM/PCM A
- U0122, Lost communication with vehicle dynamics control module
- U0155, Lost communication with instrument panel cluster
- U0168, Lost communication with vehicle security control module
What tends to go wrong on BMW
By share of the codes we have seen on this marque. A description of our own caseload, not a reliability ranking.
- Valve timing and camshaft, 8 code sightings
- Bus communication, 5 code sightings
- Turbo and boost control, 5 code sightings
- Powertrain, manufacturer-specific, 4 code sightings
- Body, manufacturer-specific, 3 code sightings
- Exhaust pressure and temperature, 3 code sightings