Крис Младенов Audi A4 B8 3.0 TDI Service Schedule Keeping your Audi A4 B8 properly serviced is important, but many of you tell us how difficult it can be to find reliable information about what needs replacing and when, particularly here in Bulgaria.... 3.0 A4 Audi B8 Guides for owners S-tronic TDI Timing belt drive Timing chain drive Mar 15, 2020