DPF blockage and oil dilution from repeated regenerations
DPF or engine warning lights, rising fuel use, frequent fan activity, a hot smell after stopping, limp mode, or the oil level creeping up on the dipstick.
How to check
Warm it fully, then drive at steady A-road speed for 10-15 minutes and watch for warning lights or a sudden drop in response.
Estimated Repair Cost
£1,200


