What this usually means
Some TSI engines can rattle from timing chain tensioner or chain stretch. Confirm with cold-start recording, cam timing values and fault codes before accepting engine overhaul advice.
What to ask the workshop before approving repair
- • Show the diagnostic fault codes.
- • Show photo/video proof of the failed part.
- • Give an itemised quote for parts and labour.
- • Explain why cheaper common fixes were ruled out.
- • Use/confirm: ODIS
- • Use/confirm: VCDS
This is not a final diagnosis. It is a money-saving checklist before you go workshop.