Mercedes-Benz OBD Codes: Meaning & Fixes

P0171 Powertrain The engine computer is adding the maximum extra fuel it's allowed on bank 1 and still sees… Moderate P0340 Powertrain The computer lost the camshaft signal on bank 1. Expect long cranking, less power… Moderate P0456 Powertrain The EVAP system has a tiny leak, about 0.020 inch — the hardest EVAP leak to find, and often… Minor P0010 Powertrain The PCM found an electrical fault in the intake cam phaser solenoid circuit on bank 1, not… Low P0016 Powertrain The bank 1 intake cam and the crankshaft are out of step, most often from a stretched or jumped… High P0017 Powertrain The bank 1 exhaust cam signal doesn't line up with the crankshaft; think chain, exhaust phaser… Moderate

P0016 Powertrain The bank 1 intake cam and the crankshaft are out of step, most often from a stretched or jumped… High P0017 Powertrain The bank 1 exhaust cam signal doesn't line up with the crankshaft; think chain, exhaust phaser… Moderate P0019 Powertrain The bank 2 exhaust cam signal doesn't match the crankshaft; chain, bank 2 exhaust phaser… Moderate P0170 Powertrain Bank 1 fuel correction is far outside its normal window, lean or rich, and the ECU won't say… Moderate P0171 Powertrain The engine computer is adding the maximum extra fuel it's allowed on bank 1 and still sees… Moderate P0173 Powertrain Fuel correction on bank 2, the side without cylinder 1, is out of range or unstable, lean… Moderate P0275 Powertrain The fuel correction for cylinder 5 is past its limit. Only engines with five or more cylinders… Moderate P0340 Powertrain The computer lost the camshaft signal on bank 1. Expect long cranking, less power… Moderate P052E Powertrain The crankcase ventilation regulator isn't controlling crankcase pressure properly – often… Moderate P0717 Powertrain The input speed sensor reports zero while the engine runs and the car moves – the signal… Moderate P0753 Powertrain The control circuit for shift solenoid A reads open, shorted or out of range – an electrical… Moderate P2006 Powertrain The intake swirl or runner flaps stay shut when the ECU wants them open, choking airflow… Moderate P2201 Powertrain The upstream NOx sensor still communicates, but its readings don't match what the ECM expects. Moderate U0101 Network The engine computer and other modules stopped hearing from the transmission control module. High