OBD-II code · Powertrain (generic, extended)
P24A4 Particulate Filter Restriction Soot Accumulation Too High Bank 1
Particulate Filter Restriction Soot Accumulation Too High Bank 1: the control module has detected this fault condition.
Is it safe to drive with P24A4?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelySoot loading critical
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–8 h
- Emissions test
- Likely to fail
- Parts involved
- Dpf B1
Related codes
- P243FParticulate Filter Restriction Soot Accumulation Too High Bank 2
- P24A1Closed Loop Particulate Filter Regeneration Control At Limit Temperature Too High
- P24A2Particulate Filter Regeneration Incomplete Bank 1
- P24A3Particulate Filter Restriction Soot Accumulation Bank 2
- P24A5EGR Cooler Bypass Control Stuck Open Bank 1
- P24A6EGR Cooler Bypass Control Stuck Open Bank 2
- P24A7EGR Cooler Coolant Pump Control Circuit Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.