Comprehensive Timing Tool Set: Designed for setting precise timing during timing belt replacements on Audi and VW petrol and diesel engines. Wide Compatibility: Suitable for VW Group diesel engines (1.7–1.9 D/TD/SDI/TDI; 2.5–3.3 TDI; 1.2–2.0 PD TDI) and petrol engines (1.2 6V/12V; 1.4–2.0 FSI, including 16V and 1.8T models). Application-Specific: Compatible with Audi A4, A6, A8, A11 (1997–2004) and VW Passat (1998–2004). Engine Codes Supported: AFB, AKE, AKN, AYM, BAU, BCZ, BDG, BDH, BFC – ensuring precise timing for specified models. Professional Grade: Ideal for mechanics and DIY enthusiasts, enhancing accuracy and engine performance in timing belt installations.