Peugeot 308 Mk1 1.6 HDi 112bhp — DPF Blockage
DPF blockage on the 308 HDi is a common complaint. Used as a family hatchback on short local journeys, many 308 diesels never get the sustained high-speed running needed for regeneration.
Severity
ModerateDIY Difficulty
Moderate
Est. Cost
£200–£1000
OBD Codes
P2452P2453DPF
Typical layout and location for the DPF assembly.
Symptoms
- DPF warning light
- Power loss and limp mode
- P2452/P2453 codes
- Black smoke
Root Cause
Short family journeys prevent the DPF from reaching regeneration temperature. The larger 308 body means more weight and more fuel burned but still insufficient exhaust temperature in traffic.
How To Fix
- 30-min motorway run at 2,500+ RPM
- Force regen via Peugeot Planet or generic EOBD tool
- Professional DPF clean: £200-350
- Replacement: £500-1,000
Estimated Repair Costs
| Repair Option | Est. Cost (GBP) |
|---|---|
| DIY (parts only) | £80–£400 |
| Independent Garage | £200–£1000 |
| Main Dealership | £320–£1600 |
Other Faults on This Variant
Timing Belt Failure (60,000-Mile Interval)
CriticalThe 308 Mk1 1.6 HDi carries the same strict 60,000-mile belt interval as the 207. Many 308 owners are misled by the larger car into assuming a longer belt life.
EGR Valve Failure
ModerateEGR failure on the 308 HDi causes the familiar symptoms of power loss and rough running. The PSA 1.6 HDi EGR system is well-known for carbon build-up.
Disclaimer: Repair cost estimates are indicative and based on community data. Always get a quote from a qualified mechanic before proceeding with any repair.