Powertrain
generic / SAE
P24A1
Closed Loop Particulate Filter Regeneration Control At Limit Temperature Too High
Same as P24A0 with the controller fully reducing heat input yet EGT still rising - typical for a runaway exotherm in the DPF (oil contamination).
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / A1
Possible causes
- DPF runaway exotherm high
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–3500 €
- Estimated time: 2–8 h
- Component: dpf b1
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012