Renault Nissan Diesel Particulate Filter DPF Regeneration
Supported coding features by RenCOM diagnostic tool https://www.obdtester.com/rencom
What it does
- Initiates forced regeneration of the diesel particulate filter
- Burns accumulated soot in the DPF
- Restores exhaust flow and engine performance
- Reduces exhaust backpressure and emissions
When it is required
- When DPF soot load exceeds normal limits
- When automatic regeneration has failed
- When DPF or engine-related fault codes are present
- After short-distance or low-speed driving patterns
Conditions that must be met
- Engine at operating temperature
- Sufficient fuel level (typically above ΒΌ tank)
- No active engine or exhaust system critical fault codes
- Vehicle stationary (or as specified by diagnostic tool)
- Stable battery voltage
- Diagnostic tool connected
What happens during regeneration
- Engine speed is increased and held automatically
- Exhaust gas temperature is raised
- Soot particles in DPF are burned off
- ECU monitors pressure and temperature sensors
If regeneration is not performed
- DPF blockage may worsen
- Engine may enter limp mode
- Increased fuel consumption
- Potential damage to DPF or turbocharger
After regeneration
- Verify DPF differential pressure values
- Clear any related fault codes
- Perform a short test drive
- Confirm normal engine performance and emissions