BMW DTC P2345 – Cylinder 10 Above Knock/Combustion Vibration Sensor Threshold
DTC P2345 meaning on BMW
DTC P2345 on a BMW indicates that the engine control module (ECM) has detected that the signal from the knock sensor for cylinder 10 has exceeded the threshold for acceptable knock or combustion vibration levels. This means that the sensor has detected abnormal combustion in cylinder 10, which can lead to engine performance issues.
BMW DTC P2345 symptoms
Symptoms of DTC P2345 on a BMW may include engine knocking or pinging noises, reduced engine power, rough idling, decreased fuel efficiency, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P2345 causes
The most common causes of DTC P2345 on a BMW include a faulty knock sensor, wiring issues in the knock sensor circuit, engine mechanical problems such as carbon buildup or a damaged piston, or issues with the fuel system such as low-quality fuel or incorrect fuel octane rating.
BMW DTC P2345 seriousness
Ignoring DTC P2345 on a BMW can lead to potential engine damage and reduced performance. It is important to address this issue promptly to prevent further complications and ensure the longevity of the engine.
How to diagnose DTC P2345 on BMW
To diagnose DTC P2345 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the knock sensor and its wiring. They may also conduct a thorough inspection of the engine components related to cylinder 10 to identify any potential issues causing abnormal combustion.
How to fix DTC P2345 on BMW
Fixing DTC P2345 on a BMW may involve replacing the faulty knock sensor, repairing any damaged wiring in the sensor circuit, addressing engine mechanical issues, cleaning carbon buildup, or ensuring the correct fuel quality and octane rating are being used. It is recommended to follow the manufacturer’s diagnostic and repair procedures to resolve the issue effectively.
How to erase DTC P2345 on BMW
Once the underlying issue causing DTC P2345 on a BMW has been fixed, the fault code can be cleared using a diagnostic scanner. This will reset the Check Engine Light and erase the DTC from the ECM’s memory. It is important to verify that the issue has been resolved before clearing the code to prevent it from reoccurring.
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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