BMW DTC C004A – Brake Lining Wear Sensor
DTC C004A meaning on BMW
The DTC C004A on a BMW refers to a fault code related to the brake lining wear sensor. This code indicates that the vehicle’s onboard computer has detected an issue with the brake lining wear sensor system.
BMW DTC C004A symptoms
Symptoms of the DTC C004A on a BMW may include:
- Brake warning light illuminated on the dashboard
- Message indicating brake pad wear on the instrument cluster
- Reduced braking performance
BMW DTC C004A causes
The DTC C004A on a BMW can be caused by:
- Worn brake pads
- Faulty brake lining wear sensor
- Corrosion or damage to the sensor wiring
BMW DTC C004A seriousness
The seriousness of the DTC C004A on a BMW lies in the potential safety implications of driving with worn brake pads. Ignoring this warning can lead to reduced braking performance and potentially unsafe driving conditions.
How to diagnose DTC C004A on BMW
To diagnose the DTC C004A on a BMW, you can:
- Use a diagnostic scanner to read the fault codes
- Inspect the brake pads and sensor for wear or damage
- Check the sensor wiring for any signs of corrosion or disconnection
How to fix DTC C004A on BMW
To fix the DTC C004A on a BMW, you may need to:
- Replace the worn brake pads
- Replace the faulty brake lining wear sensor
- Repair or replace damaged sensor wiring
How to erase DTC C004A on BMW
To erase the DTC C004A on a BMW, you can:
- Use a diagnostic scanner to clear the fault codes
- Ensure that the underlying issue causing the fault code has been resolved
- Perform a test drive to confirm that the warning light does not reappear
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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