P0325 – BMW DTC

BMW DTC P0325 – Knock/Combustion Vibration Sensor 1 Circuit (Bank 1 or Single Sensor)

DTC P0325 meaning on BMW

The Diagnostic Trouble Code (DTC) P0325 for BMW refers to a fault in the Knock/Combustion Vibration Sensor 1 Circuit on Bank 1 or a single sensor. This code indicates that there is a problem with the sensor responsible for detecting engine knock or vibrations during combustion.

BMW DTC P0325 symptoms

Symptoms of DTC P0325 on a BMW may include:

• Engine knocking or pinging noises
• Reduced engine performance
• Check Engine Light (CEL) illuminated on the dashboard
• Poor fuel economy

BMW DTC P0325 causes

Common causes of DTC P0325 on a BMW include:

• Defective Knock/Combustion Vibration Sensor
• Wiring or connector issues in the sensor circuit
• Engine mechanical problems causing abnormal vibrations

BMW DTC P0325 seriousness

While DTC P0325 may not always result in immediate engine failure, it is important to address this issue promptly to prevent potential damage to the engine over time. Ignoring this fault can lead to reduced engine efficiency and performance.

How to diagnose DTC P0325 on BMW

To diagnose DTC P0325 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and check for any related codes.
2. Inspect the Knock/Combustion Vibration Sensor and its wiring for any visible damage or corrosion.
3. Test the sensor’s resistance and voltage output to determine if it is functioning correctly.
4. Check for any abnormal engine vibrations that could trigger false readings from the sensor.

How to fix DTC P0325 on BMW

To fix DTC P0325 on a BMW, you can try the following solutions:

1. Replace the Knock/Combustion Vibration Sensor if it is found to be faulty.
2. Repair any damaged wiring or connectors in the sensor circuit.
3. Address any underlying engine mechanical issues that may be causing abnormal vibrations.

How to erase DTC P0325 on BMW

To erase DTC P0325 on a BMW, you can clear the fault code using a diagnostic scanner or by disconnecting the vehicle’s battery for a few minutes. However, it is recommended to address the root cause of the issue 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

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.