BMW DTC P1355 – Misfire Cylinder 7 with Fuel Cut-Off
DTC P1355 meaning on BMW
DTC P1355 for BMW indicates a misfire in cylinder 7 with fuel cut-off. This means that the engine control module (ECM) has detected a misfire in the seventh cylinder of the engine, leading to the fuel supply being cut off to that cylinder to prevent damage to the catalytic converter.
BMW DTC P1355 symptoms
Symptoms of DTC P1355 on a BMW may include rough idling, engine hesitation, loss of power, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P1355 causes
The common causes of DTC P1355 on a BMW include faulty ignition coils, spark plugs, fuel injectors, vacuum leaks, or issues with the engine’s compression.
BMW DTC P1355 seriousness
Ignoring DTC P1355 on a BMW can lead to further damage to the engine and the catalytic converter. It is important to address this issue promptly to prevent more severe problems.
How to diagnose DTC P1355 on BMW
To diagnose DTC P1355 on a BMW, start by using a diagnostic scanner to retrieve the fault codes. Then, perform a visual inspection of the ignition system components, such as the ignition coils and spark plugs. Check for any signs of wear or damage. Additionally, conduct a compression test to ensure the engine’s cylinders are functioning properly.
How to fix DTC P1355 on BMW
To fix DTC P1355 on a BMW, you may need to replace faulty ignition coils, spark plugs, or fuel injectors in cylinder 7. Ensure there are no vacuum leaks in the intake system and that the engine’s compression is within specifications. Once the necessary repairs are made, clear the fault codes and test drive the vehicle to ensure the issue has been resolved.
How to erase DTC P1355 on BMW
To erase DTC P1355 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. After making the necessary repairs and confirming the issue has been resolved, you can reset the Check Engine Light and ensure the fault code does not reappear during subsequent driving cycles.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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