BMW DTC P04CE – EGR Temperature Sensor ‘C’ Circuit
DTC P04CE meaning on BMW
The DTC P04CE error code on a BMW indicates an issue with the EGR (Exhaust Gas Recirculation) temperature sensor ‘C’ circuit. This sensor is responsible for monitoring the temperature of the exhaust gas recirculation system.
BMW DTC P04CE symptoms
Symptoms of the BMW DTC P04CE may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Decreased engine performance
- Increased fuel consumption
- Engine stalling or rough idling
BMW DTC P04CE causes
Common causes of the BMW DTC P04CE error code include:
- Defective EGR temperature sensor ‘C’
- Wiring or connector issues in the EGR temperature sensor circuit
- Faulty EGR valve
- Carbon buildup in the EGR system
BMW DTC P04CE seriousness
Ignoring the BMW DTC P04CE error code can lead to potential engine performance issues and increased emissions. It is recommended to address this issue promptly to prevent further damage to the vehicle.
How to diagnose DTC P04CE on BMW
To diagnose the DTC P04CE on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the error code and freeze frame data
- Inspect the EGR temperature sensor ‘C’ and its wiring for any visible damage
- Test the EGR temperature sensor for proper resistance values
- Check the EGR valve operation and cleanliness
How to fix DTC P04CE on BMW
To fix the DTC P04CE on a BMW, the following steps may be taken:
- Replace the faulty EGR temperature sensor ‘C’
- Repair any damaged wiring or connectors in the EGR temperature sensor circuit
- Clean or replace the EGR valve if necessary
- Clear the error code and perform a test drive to ensure the issue is resolved
How to erase DTC P04CE on BMW
To erase the DTC P04CE error code on a BMW, a diagnostic scanner can be used to clear the code from the vehicle’s computer system. After clearing the code, it is recommended to perform a test drive to ensure the issue has been resolved successfully.
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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