Крис Младенов Audi A8 D3 and D4 Common Problems and Maintenance An Audi A8 D4 for the price of an ordinary family car? Sounds like the deal of a lifetime, doesn't it? The same goes for the A8 D3, especially if you've spotted a 4.2 TDI with that lovely V8 engine. Y... A8 Audi Common problems by model Guides for owners May 18, 2026