BMW DTC P135D – Knock/Combustion Vibration Sensor 5 Circuit
DTC P135D meaning on BMW
DTC P135D is a fault code that indicates an issue with the Knock/Combustion Vibration Sensor 5 Circuit in a BMW vehicle. This sensor is responsible for detecting abnormal combustion or knocking in the engine, which can lead to poor performance and potential damage if not addressed.
BMW DTC P135D symptoms
Symptoms of DTC P135D in a BMW may include engine misfires, reduced power output, rough idling, and potentially an illuminated check engine light on the dashboard. The vehicle may also experience decreased fuel efficiency and overall drivability issues.
BMW DTC P135D causes
The most common causes of DTC P135D in a BMW include a faulty Knock/Combustion Vibration Sensor 5, wiring issues in the sensor circuit, or a problem with the sensor’s connection to the engine control module. Additionally, poor fuel quality or incorrect ignition timing can also contribute to this fault code.
BMW DTC P135D seriousness
While DTC P135D may not always result in immediate engine failure, it is important to address this issue promptly to prevent potential damage to the engine and ensure optimal performance of the vehicle. Ignoring this fault code can lead to more severe problems over time.
How to diagnose DTC P135D on BMW
To diagnose DTC P135D on a BMW, a mechanic will typically use a diagnostic scanner to retrieve the fault code and perform a thorough inspection of the Knock/Combustion Vibration Sensor 5 and its associated wiring. They may also conduct a visual inspection of the sensor and its connections to identify any visible issues.
How to fix DTC P135D on BMW
Fixing DTC P135D on a BMW usually involves replacing the faulty Knock/Combustion Vibration Sensor 5 and addressing any wiring or connection issues. It is important to use genuine BMW parts for the replacement to ensure proper functionality. Once the sensor is replaced, the fault code should be cleared, and the vehicle should be tested to ensure the issue has been resolved.
How to erase DTC P135D on BMW
To erase DTC P135D on a BMW, a diagnostic scanner can be used to clear the fault code from the engine control module’s memory. After the repair has been completed and the fault code erased, the vehicle should be driven to ensure that the check engine light does not reappear, indicating that the issue has been successfully resolved.
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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