P055C – BMW DTC

BMW DTC P055C – Engine Oil Pressure Sensor/Switch ‘B’ Low

DTC P055C meaning on BMW

DTC P055C on a BMW indicates a low signal from Engine Oil Pressure Sensor/Switch ‘B’. This means that the engine oil pressure is below the expected threshold, triggering the fault code.

BMW DTC P055C symptoms

Symptoms of DTC P055C on a BMW may include:

• Check Engine Light illuminated on the dashboard
• Low oil pressure warning light
• Engine running rough or stalling
• Loss of power

BMW DTC P055C causes

Common causes of DTC P055C on a BMW include:

• Defective Engine Oil Pressure Sensor/Switch ‘B’
• Low engine oil level
• Engine oil viscosity issues
• Wiring or connector issues in the oil pressure sensor circuit

BMW DTC P055C seriousness

Ignoring DTC P055C on a BMW can lead to serious engine damage due to inadequate lubrication. It is important to address this issue promptly to prevent potential engine failure.

How to diagnose DTC P055C on BMW

To diagnose DTC P055C on a BMW, you can perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code
2. Inspect the engine oil level and condition
3. Check the wiring and connectors related to the Engine Oil Pressure Sensor/Switch ‘B’
4. Test the oil pressure sensor for proper operation

How to fix DTC P055C on BMW

To fix DTC P055C on a BMW, you may need to:

1. Replace the Engine Oil Pressure Sensor/Switch ‘B’
2. Top up the engine oil to the correct level
3. Use the recommended engine oil viscosity
4. Repair any wiring or connector issues in the sensor circuit

How to erase DTC P055C on BMW

To erase DTC P055C on a BMW, you can:

1. Use a diagnostic scanner to clear the fault code
2. After fixing the underlying issue, drive the vehicle to allow the system to recheck and verify the repair
3. If the fault does not reoccur, the DTC P055C should be successfully erased

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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