DTC code
P2003
Particulate Filter Efficiency Below Threshold Bank 2
Technical guide
reference — not individually verifiedSymptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Probable causes
- high: DPF heavily loaded — repeated short trips prevent regeneration
- medium: Filter substrate cracked or melted
Diagnostic steps
Check the components involved: diesel particulate filter, dpf differential pressure sensor, dpf temperature sensor. Verify wiring and connectors before replacing any part. Job difficulty: hard (workshop equipment required). Typical European range — 400-4000 EUR, 2-8 h. Reference values only.
Cross-checked technical synthesis (QA). It does not replace the manufacturer's procedure.
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0 confirmed cases on P2003
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