SCV & PRV Failure
ModerateFuel SystemThe Suction Control Valve and Pressure Relief Valve on the common rail system frequently fail, leading to uneven idling and cutting out.
Est. Repair Cost: £150–£350
Warning Signs:
Engine hunting at idle, Cutting out when coming to a stop, Limp mode
What to Inspect:
- Observe the idle when warm; it should be rock steady
- Check for DTCs related to fuel rail pressure
Verified by IsItAGoodCar Research Team