Unexplained coolant loss, white smoke from the exhaust, or a sweet smell under the bonnet.
- Typically appears
- 40,000-70,000 miles
- What to inspect
- Check the coolant expansion tank level. Remove the oil filler cap to check for milky residue, and shine a torch on the EGR cooler housing at the top of the engine for dried coolant crust.
- Typical repair
- EGR valve / cooler replacement · £300–£900
