What does code P1357 mean?

Q: What does code P1357 mean?

Misfire Cylinder 8 With Fuel Cut-off. P1357 on a BMW indicates that the engine control module has detected a misfire on cylinder 8 severe enough to disable that cylinder's fuel injector, cutting off fuel to prevent raw fuel from overheating the catalytic converter. The misfire is identified by abnormal crankshaft speed fluctuations, and the fuel cut-off is a protective strategy rather than the root cause.

DTC codes / BMW codes / P1357

P1357 · BMWMisfire Cylinder 8 With Fuel Cut-off

P1357 on a BMW indicates that the engine control module has detected a misfire on cylinder 8 severe enough to disable that cylinder's fuel injector, cutting off fuel to prevent raw fuel from overheating the catalytic converter. The misfire is identified by abnormal crankshaft speed fluctuations, and the fuel cut-off is a protective strategy rather than the root cause.

SystemPowertrain

Code typeBMW specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

Guidance is general and written for BMW vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.