The OBD code P2463 Diesel Particulate Filter Restriction – Soot Accumulation indicates a restriction in the DPF due to the accumulation of soot. The DPF filter is an essential component in many diesel vehicles, designed to capture and store exhaust soot in order to reduce emissions. When the filter becomes clogged, it triggers this fault code.
Affected vehicles include:
Alfa Romeo, Audi, BMW, Chevrolet, Chrysler, Citroen, Dodge, Fiat, Ford, Honda, Hyundai, Jaguar, Kia, Lancia, Land Rover, Mazda, Mercedes, Mini, Mitsubishi, Nissan, Opel, Peugeot, Porsche, Renault, Saab, Seat, Skoda, Subaru, Suzuki, Vauxhall, Volkswagen, Volvo
| Fault | Diesel Particulate Filter Restriction – Soot Accumulation |
| Meaning | Blocked or clogged DPF filter |
| Outcome | Reduced engine performance, increased emissions and potentially costly engine damage if not fixed |
| Causes | – Damaged or blocked Diesel Particulate Filter – Malfunctioning sensors related to particulate filter or exhaust – Problems with regeneration process of the particulate filter – Possible issues with fuel quality or incorrect fuel type – Engine running conditions leading to excessive soot buildup |
| Checks | – Inspect the DPF for blockages or damage. – Examine DPF sensor readings – Check for fuel quality issues and correct fuel type – Monitor if DPF regeneration cycles are occuring correctly – Consult manufacturer technical service bulletins or software updates |
| Fixes | – Perform Manual Regeneration if applicable – Clean the DPF – Replace the DPF |
If your DPF filter has moderate to severe build-up of soot, cleaning may be the best option in order to avoid a complete DPF replacement. Submit the Click & Collect form if you would like Valley Filters to professionally clean your DPF.