Remove/Install Upper Control Panel Control Unit - AR54.21-S-1262EE

Model 447.6/7, 448.7 

Shown Except Code XM7 (Facelift II) 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Shown With Code XM7 (Facelift II) 

Notice	General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment	Model 447.6/7 with engine 780	AH00.00-Z-0300-01A
Notice	Notes on carrying out repair work in the vehicle interior		AH68.00-D-0001-01KOS
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1.1	Remove center instrument panel cover.	Model 447.6/7, 448.7 except code XM7 (MOPF II)	AR68.10-S-3430E
1.2	Remove radio display.	Model 447.6/7, 448.7 with code XM7 (MOPF II)	AR82.60-S-7722EI
2	Unscrew screws (1).
3	Remove upper control panel (UCP [OBF]) control unit (N72/1).	Model 447.6/7, 448.7 with code XM7 (MOPF II) To do so, unclip upper control panel (UCP [OBF]) control unit (N72/1) at retaining tabs (arrows A). Long wedge	Fig 1
4	Install in the reverse order.
	Check
5	Carry out function test of upper control panel (UCP [OBF]) control unit (N72/1).

Fig 1: Identifying Long Wedge (115 589 03 59 00)

Courtesy of MERCEDES-BENZ USA