Powertrain
generic / SAE
P2463
Diesel Particulate Filter Restriction — Soot Accumulation
The estimated soot mass in the DPF has crossed the upper limit and the ECU could not complete a regeneration to bring it back down. Very common on cars used on short trips. Continued driving in this state risks a runaway regeneration that destroys the filter.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 63
Possible causes
- DPF heavily loaded after multiple aborted regenerations high
- Predominantly short-trip operation high
- Differential pressure sensor reading drifted high low
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: 150–3500 €
- Estimated time: 1–8 h
- Component: diesel particulate filter
- Component: dpf differential pressure sensor
- Component: exhaust temperature sensor
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012