Timing chain rattle on cold start due to stretched chain or weak tensioner from missed oil changes.
- Typically appears
- 50,000-80,000 miles
- What to inspect
- Start the engine from dead cold with the bonnet open. Listen for a distinct metallic clatter from the timing cover side that fades after a few seconds.
- Typical repair
- Timing chain, tensioner & guides · £900–£2,400
