Rear timing chain wear (3.0 TDI)
Attaches to CCWA at engine level · Engine · carried by 2 variants across 2 chassis
Overview
Rear timing chain wear (3.0 TDI) is a occasional fault recorded against CCWA at engine level, typically from 180–300k km. It shows up as rattle on start-up that settles, chain noise from the bulkhead end, timing correlation codes. Where it's documented, the repair runs €2,500–€4,500 (engine out at a specialist, costs dated 2026-07), and it can be checked before you buy. 2 variants across 2 chassis in this database inherit it.
What happens
Symptom. Rattle on start-up that settles, chain noise from the bulkhead end, timing correlation codes.
Cause. The V6 diesel runs its chains at the back of the engine. The chains and guides wear, and access requires the engine out.
Sources. specialist reports
How to check it
Cold start
Cold start only, listening at the bulkhead. On a car this age treat any sustained rattle as the chain and price accordingly.
You get one. If the engine is warm when you arrive, come back another day.
Every variant that carries this
| Variant | Chassis | Body | Years | Risk | Good buy | Cost as % of good buy |
|---|---|---|---|---|---|---|
| 3.0 TDI CCWA | B8 | sedan | 2008–2015 | R4 | €7,500 | 47% |
| 3.0 TDI CCWA | B8 Avant | wagon | 2008–2016 | R4 | €7,900 | 44% |
The last column is the point. The same repair is an inconvenience on one variant and a reason to scrap the car on another. A failure costing a quarter of the vehicle's value changes the purchase decision regardless of how rare it is.