4.2 FSI V8 350hp (BAR)
2006–2010 · petrol · 4163cc · 350hp
Engine codes: BAR
Reliability, common problems and owner reviews for the Audi Q7 4.2 FSI V8 350hp (BAR). Check this before you buy used.
The 4.2 FSI V8 at 350 hp in the Q7 and Touareg. The timing chains sit at the rear with plastic guides and hydraulic tensioners; P0019 and P0345 are the early warnings, and the repair is engine-out at about 16–24 hours of labour. A broken chain at 134k miles is on record. In a 10-plus-year-old car the repair is bigger than the car is worth.
Known Issues
Plastic guides wear; chain can break. Repair is engine-out; parts kit $1,200–2,200 plus 16–24 h labour, forum quotes around $8k.
Fix / Workaround: Walk away from P0019/P0345 or any rattle.
Fault Codes to Scan
Pre-Purchase Checklist
- ☐Scan for P0019 / P0345
- ☐Cold-start rattle check
Frequently asked questions
Is the Audi Q7 4.2 FSI V8 350hp (BAR) reliable?
Avoid — The 4.2 FSI V8 at 350 hp in the Q7 and Touareg. The timing chains sit at the rear with plastic guides and hydraulic tensioners; P0019 and P0345 are the early warnings, and the repair is engine-out at about 16–24 hours of labour. A broken chain at 134k miles is on record. In a 10-plus-year-old car the repair is bigger than the car is worth.
What are the common problems and reviews for the Audi Q7 4.2 FSI V8 350hp (BAR)?
The most commonly reported problems: Rear timing chains and guides.
Is a used Audi Q7 4.2 FSI V8 350hp (BAR) worth buying?
A design flaw with no reliable fix, or a catastrophic-failure risk. Not worth the gamble at any price.