P2002high severityPowertrain
Diesel Particulate Filter Efficiency Below Threshold Bank 1
on 2011 Audi A3 2.0L TDI I4 · FWD
What this code means
The DPF on bank 1 is not filtering soot effectively. Differential pressure across the filter is abnormal.
Symptoms
- Check engine light
- DPF warning light
- Reduced power
- Excessive black smoke
Common causes
- Clogged/damaged DPF
- Failed differential pressure sensor
- Faulty DPF temperature sensor
- Oil contamination of DPF
Diagnostic steps
- Check DPF differential pressure
- Inspect temperature sensors
- Attempt forced regeneration
- Check soot loading percentage
Repair notes
Attempt forced regeneration first. If soot load exceeds limit, professional cleaning or DPF replacement required.
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