1998-2001 E39 523i (M52TU). 1998-2001 E36/7 Z3 (M52TU). 1997-2001 E46 328i/328Ci (M52TU). 1998-2001 E39 528i (M52TU). 1998-2001 E38 728i (M52TU). Double VANOS Timing Kit Engine Tools needed for assembly and proper timing the Vanos unit found on 1998 & newer 6 cyl engines.