The vacuum lines are grouped together as follows:
Clear = Vacuum supply from engine (1) to fit to a one way connector
Black = trunk handle eject/retract (1) to fit to a one way connector
Red = Rear parking aide antennae (2) to fit to the two way connector
Yellow = Central locking (6) to fit to the six way connector
Grey = Front seat lumbar (3) to fit to the six way connector with 3 vacuum plugs
White/blue = Rear headrests (2) to fit to the two way connector

__________________
Russell McMahon
Tulsa, OK
2001 CLK 320
1992 400se
1993 400e
2000 320ML