Engine Codes AHU-1Z TDI and earlier VW® Diesels
Specialty engine tools for cars with 1Z and AHU TDI engines. Chassis include the Passat® (B4) 1996-1997 1Z engine and the Golf®/Jetta® (MK-III) from 1997 to 1999.4 with the AHU engine and many earlier diesels. (E-mail us if you have an older, non-TDI diesel) This group has a black painted steel valve cover and a spin-on oil filter on the lower front of the engine.