Removing and installing voice control system control module - AR82.70-P-0003M

MODEL 215, 220 as of 1.7.00 with CODE (813b) Voice control system (VCS) with CODE (853) MB standard cellular telephone with CODE (855) TELE AID 

Shown on model 220 

Fig 1: Identifying Voice Control System Control Module Remove/Install Components - Shown On Model 220

Courtesy of MERCEDES-BENZ USA

	Removing and installing
1	Connect quiescent 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 ground cable of battery
	Notes on battery	All models
3.1	Remove rear seat cushion	Model 215.	AR91.12-P-1020N
		Model 220.
3.2	Remove bucket seats	Model 220 with code 401, right side only
4	Remove seat adjustment device on rear seat	Model 220 with code 401, right side only
5	Fold back cover mats
6	Disconnect connector from voice control system control module (A35/11)
7	Unscrew screws (4) from assembly plate (3)
8	Install in the reverse order
9	Check for proper function