Powertrain
generic / SAE
P226D
Particulate Filter Deteriorated/Missing Substrate (Bank 1)
The DPF substrate on bank 1 has been detected as cracked, melted, or removed. Differential pressure across the filter is too low for the measured exhaust flow — the soot trap no longer works.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number2 / 6D
Possible causes
- Substrate cracked or melted from runaway regen high
- Substrate removed by tampering medium
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: 800–4000 €
- Estimated time: 2–8 h
- Component: diesel particulate filter
- Component: dpf differential pressure sensor
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012