Remove/Install Sliding Sunroof Control Unit In Pop-Up Roof - AR77.20-S-0023E

Model 447.7/8 

With Code D27 (Electric tilting/sliding glass sunroof) 

With Code ZK9 (Lifting roof hatch) 

Model 447.8 

With Code D27 (Electric tilting/sliding glass sunroof) 

With Code ZK0 (EASY UP pop-up roof, electric) 

Fig 1: Sliding Sunroof Control Unit In Pop-Up Roof Components Location - Model 447.7 With Code D27, ZK9

Courtesy of MERCEDES-BENZ USA

Notice	Notes on carrying out repair work in the vehicle interior		AH68.00-D-0001-01KOS
	Remove/install
1	Remove trim for sliding sunroof in pop-up roof.		AR77.20-S-0021E
2	Remove trim (1).	Unscrew bolt (2) to do this.
3	Disconnect electrical connection (3).
4	Remove control unit (4) with the bracket.	To do this, remove the screw/bolts (5).
5	Remove switch (6).	If the control unit (4) or switch (6) is replaced.
6	Remove control unit (4) from bracket.	If a new control unit (4) is installed. To do this, unscrew screw/bolts.
7	Install in the reverse order.
	Check
	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
8	Check function of the sliding sunroof.