Remove/Install Electric Sliding Door Drive Unit - AR72.29-S-8788E

Model 447.7/8, 448.8 

With Code T56 (Electric operation of sliding door on left) 

Model 447.7/8, 448 

With Code T55 (Electric operation of sliding door on right) 

Fig 1: Electric Sliding Door Drive Unit Components Location - Model 447.7 With Code T56, T55

Courtesy of MERCEDES-BENZ USA

	Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.	No parts of the body or limbs should be within the operating area when the components are moving.	AS00.00-Z-0011-01A
Notice	Notes on carrying out repair work in the vehicle interior		AH68.00-D-0001-01KOS
	Remove/install
1	Remove rear passenger compartment side trim.	Model 447.7 with code T55 (Electric operation of sliding door on right) with code V23 (Interior trim, premium version) Model 447.7 with code T56 (Electric operation of sliding door on left) with code V23 (Interior trim, premium version) Model 447.8 with code T55 (Electric operation of sliding door on right) except code ZK7 (Equipment line MARCO POLO) Model 447.8 with code T56 (Electric operation of sliding door on left) except code ZK7 (Equipment line MARCO POLO) Model 448.7 with code T55 (Electric operation of sliding door on right) with code V23 (Interior trim, premium version) Model 448.8 with code T55 (Electric operation of sliding door on right) Model 448.8 with code T56 (Electric operation of sliding door on left)	AR68.30-S-1206E
		Model 447.8 with code T55 (Electric operation of sliding door on right) with code ZK7 (Equipment line MARCO POLO)	AR68.30-S-1207E
		Model 447.7 with code E3V (External connection 230 V) with code T55 (Electric operation of sliding door on right) with code ZH6 (Marco Polo ACTIVITY) Model 447.8 with code E3V (External connection 230 V) with code T55 (Electric operation of sliding door on right) with code Z93 (Marco Polo HORIZON)	AR68.30-S-1187E
2	Remove center carriage for sliding door.		AR72.16-S-2230E
3	Unscrew screws (1) and place the holder (2) with the speaker to one side.	Model 447.7/8 with code EL9 (Two-way loudspeaker system in front and rear) with code T55 (Electric operation of sliding door on right) Model 447.7/8 with code EL9 (Two-way loudspeaker system in front and rear) with code T56 (Electric operation of sliding door on left) Model 447.8 with code E65 (Burmester® surround sound system) with code T55 (Electric operation of sliding door on right) Model 447.8 with code E65 (Burmester® surround sound system) with code T56 (Electric operation of sliding door on left) Model 448.8 with code E65 (Burmester® surround sound system) with code T55 (Electric operation of sliding door on right) Model 448.8 with code E65 (Burmester® surround sound system) with code T56 (Electric operation of sliding door on left) Model 448.8 with code EL9 (Two-way loudspeaker system in front and rear) with code T56 (Electric operation of sliding door on left) Model 448 with code EL9 (Two-way loudspeaker system in front and rear) with code T55 (Electric operation of sliding door on right)
4	Remove screws (3).	Screw/bolt, drive unit to sidewall	*BA72.16-Z-1018-01KOJ
5	Remove nut (4).	Nut, drive unit to sidewall	*BA72.16-Z-1017-01KOJ
6	Disconnect electrical connector (5).
7	Remove right electric sliding door drive (M73/1) or left electric sliding door drive (M73/2) and cables (6) through the opening in the side wall.	Aid of helper required. Otherwise the paint can be damaged by the cables (6). : Ensure that cables (6) and seal are routed and seated correctly.
8	Install in the reverse order.
	Check
9	Perform function check of the electric sliding door.