Complete kit of all 5 specialty tools for changing the timing belt on TDI Engine codes 1Z and AHU and many earlier diesels (E-mail us if you have an older, non-TDI diesel). Chassis include the Passat (B4) 1996-1997 and the Golf/Jetta (A3) or MK-III from 1997 to 1999.4 This group has a black painted steel valve cover and a spin-on oil filter on the lower front of the engine.