Remove/install audio gateway control unit - AR82.60-P-7606M

MODELS 220.0##/1##, 215.3## 1# as of 1.9.03 Vehicles with MOST fiber optical cable 

Fig 1: Identifying Audio Gateway Control Unit Remove/Install Components - Shown On Model 220

Courtesy of MERCEDES-BENZ USA

Shown on model 220 with sound system (code 810) 

	Remove/install
1	Connect no load current retention unit		*WH58.30-Z-1012-09A
	Risk of explosion  caused by escaping oxyhydrogen gas. Risk of injury  caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries  caused by short circuit. Risk of poisoning  caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices	No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.
2	Disconnect battery ground line
	Notes on battery	All models
	Notes on AGM battery	Model 215 as of 1.1.01. Model 220.028 with code (450) Taxi version. Models 220.070/075/175/178/875/878 as of 1.1.01.
3	Remove coverings in trunk	Left side paneling.
4.1	Remove overpressure reservoir for dynamic seat control	Only models 220.0/1 as of 1.9.02 with code (433) left dynamic seat, incl. multicontour seat or with code (434) right dynamic seat, incl. multicontour seat.
5.1	Remove CD changer	Only vehicles with CD changer (6-disc) (code 819). Remove only CD changer bracket; do not remove CD changer from the bracket. CD changer and navigation processor have a common bracket.	AR82.64-P-7507MN
6.1	Remove bracket for navigation processor	Only vehicles with COMAND APS (with navigation) code (527a). ↓
		Remove CD player with changer. CD changer and navigation processor have a common bracket. Only remove the bracket of the navigation processor; do not remove navigation processor from the bracket.	AR82.64-P-7507MN
7.1	Unscrew bolts (2) from bracket (6)	Only for vehicles without CD changer (6-disc) (code 819) and without COMAND APS (with navigation) code (527a).
8	Unscrew bolts (16, 17) from bracket (6)	In model 215 the bracket (6) is attached using a bolt and the nut (17) instead of the nut (16).
9	Take bracket (6) with audio gateway control unit (N93/1) and Sound amplifier (A2/13) (for vehicles with sound system (code 810)) out of wheelhouse recess	Do not buckle or extend fiber optical cable, routing radii must be greater than 25 mm! Do not damage standard wiring harness (23).
10	Remove black antenna connector (8) and yellow antenna connector (9) from the rear face of the audio gateway control unit (N93/1)
11	Detach MOST fiber optical cable coupling (10) from the rear face of the audio gateway control unit (N93/1)
12	Detach black, 4-pin coupling (11) from the front face of the audio gateway control unit (N93/1)
13.1	Detach black, 14-pin coupling (12a) from the front face of the audio gateway control unit (N93/1)	Only for vehicles without sound system (code 810).
14	Unscrew the two collar nuts (22) (magnifiers)
15	Push out audio gateway control unit (N93/1) from bracket (6) to front in direction of arrow	Caution:  For model 215 with Sound amplifier (A2/13), for sound system (code 810). Do not damage standard wiring harness (23).
16	Install in the reverse order
	Check
17	Perform function check	See owner's manual.