BMW DTC P137F – Knock Control Fuel Cut-Off due to Super Knocking
DTC P137F meaning on BMW
DTC P137F on a BMW refers to Knock Control Fuel Cut-Off due to Super Knocking. This diagnostic trouble code indicates that the engine control module (ECM) has detected excessive knocking or detonation in the engine, leading to the fuel being cut off to prevent damage.
BMW DTC P137F symptoms
Symptoms of DTC P137F on a BMW may include engine knocking or pinging noises, reduced engine performance, rough idling, and potentially even engine stalling. The Check Engine Light may also illuminate on the dashboard.
BMW DTC P137F causes
The causes of DTC P137F on a BMW can vary, but common factors include low-quality fuel, incorrect ignition timing, carbon buildup in the combustion chamber, faulty knock sensors, or issues with the fuel delivery system.
BMW DTC P137F seriousness
Ignoring DTC P137F on a BMW can lead to engine damage over time. Super knocking can cause piston damage, cylinder head damage, and other internal engine components to fail prematurely. It is crucial to address this issue promptly to prevent costly repairs.
How to diagnose DTC P137F on BMW
To diagnose DTC P137F on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then inspect the knock sensors, check the fuel quality, examine the ignition timing, and perform a visual inspection of the engine components for any signs of damage or wear.
How to fix DTC P137F on BMW
Fixing DTC P137F on a BMW may involve replacing faulty knock sensors, cleaning carbon deposits from the combustion chamber, adjusting the ignition timing, using higher-quality fuel, or addressing any issues with the fuel delivery system. It is recommended to follow the manufacturer’s diagnostic and repair procedures to resolve this issue effectively.
How to erase DTC P137F on BMW
Once the underlying issue causing DTC P137F on a BMW has been addressed and fixed, the fault codes can be cleared using a diagnostic scanner. By clearing the fault codes, the Check Engine Light should turn off, indicating that the issue has been resolved. It is essential to ensure that the repair has been successful before clearing the fault codes.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.