This is a complete parts pack for performing a VANOS drive gear update on early build 2006 M5 and M6s.
VANOS pumps manufactured after 9/05 were built with these updated parts, but production vehicles as late as 12/05. The drive gears have a longer tooth profile to address failures discovered on early builds. During this time, BMW also updated the oil pump drive chain tensioning system. This kit includes all the pieces necessary to update that as well. If you already have the oil pan off on a early build MY 2006 car, it is strongly recommended to verify the updated gears are installed.