EGR Valve and Cooler Blockage
ModerateEngineCarbon deposits can clog the EGR valve and cooler, particularly on diesel models, causing rough running and loss of power.
Est. Repair Cost: £200–£600
Warning Signs:
Rough idle, Loss of low-speed torque, Check engine light with P0401 code
What to Inspect:
- Check for EGR-related fault codes
- Ask about motorway use history on diesels
Verified by IsItAGoodCar Research TeamUpdated