BMW DTC P04E6 – EGR Temperature Sensor ‘D’ Circuit Range/Performance
DTC P04E6 meaning on BMW
The DTC P04E6 on a BMW indicates an issue with the EGR (Exhaust Gas Recirculation) temperature sensor ‘D’ circuit. This fault code is triggered when the Engine Control Module (ECM) detects that the signal from the EGR temperature sensor ‘D’ is outside the expected range or performance parameters.
BMW DTC P04E6 symptoms
Symptoms of the DTC P04E6 on a BMW may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Decreased engine performance
- Increased fuel consumption
- Engine stalling or rough idling
BMW DTC P04E6 causes
Common causes of the DTC P04E6 on a BMW include:
- Faulty EGR temperature sensor ‘D’
- Wiring or connector issues in the EGR temperature sensor circuit
- ECM software or hardware problems
BMW DTC P04E6 seriousness
The DTC P04E6 should not be ignored as it can lead to poor engine performance and increased emissions. While the vehicle may still be operable with this fault, it is recommended to address the issue promptly to prevent further damage to the engine or emissions system.
How to diagnose DTC P04E6 on BMW
To diagnose the DTC P04E6 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the EGR temperature sensor ‘D’ and its wiring for any visible damage or corrosion
- Test the EGR temperature sensor ‘D’ using a multimeter to check for proper resistance values
- Check the ECM for any software updates or faults
How to fix DTC P04E6 on BMW
To fix the DTC P04E6 on a BMW, the following steps may be taken:
- Replace the faulty EGR temperature sensor ‘D’
- Repair or replace any damaged wiring or connectors in the EGR temperature sensor circuit
- Clear the fault code and perform a test drive to ensure the issue has been resolved
How to erase DTC P04E6 on BMW
To erase the DTC P04E6 on a BMW, the fault code can be cleared using a diagnostic scanner. After the repair has been completed, the mechanic can use the scanner to clear the code and reset the Check Engine Light. It is important to ensure that the underlying issue causing the fault code has been addressed before clearing it.
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.