P2003high severityPowertrain
Diesel Particulate Filter Efficiency Below Threshold Bank 2
on 2011 Audi Q7 3.0L TDI V6 · AWD
What this code means
The DPF on bank 2 has reduced filtration efficiency.
Symptoms
- DPF warning light
- Check engine light
- Power reduction mode
Common causes
- Damaged DPF
- Excessive oil consumption
- Failed regeneration
- Sensor fault
Diagnostic steps
- Check differential pressure sensor bank 2
- Compare soot loading bank 1 vs 2
- Attempt regeneration
Repair notes
Replace or clean DPF bank 2 if regeneration fails.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1