Remove/install hands-free system control unit - AR82.70-P-8970T

MODEL 211.0 up to 1.6.08 except CODE (809) Model year 2009 except CODE (924) Bivalent natural gas drive with CODE (349) E-call emergency call system with CODE (380) Preinstallation for MB telephone "Cell phone", complete with CODE (381) CP-Light telephone system with CODE (382) MB telephone "Cell phone" in armrest with CODE (383) CP-High telephone system with CODE (384) Telephone preinstallation for USA with CODE (385) Telephone preinstallation for Canada 

Fig 1: Identifying Hands-Free System Control Unit Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Remove soundproofing (1)
2	Remove screws (arrows A) and take off carrier plate cover (2)
3	Unscrew bolt (3)
4	Push down lock tab (arrow B) and disconnect electrical connector (4)	To avoid damaging the fiber optic cable, do not kink fiber optic cable, route over sharp edges or bend in radii smaller than 25 mm. Release electrical connector (4) carefully as there is a risk of breaking the lock tab (arrow B).
5	Cover fiber optic cable (5)	The fiber optic cable (5) is integrated in the electrical connector (4).	AR82.95-P-0005-01A
6	Take hands-free system control unit (A35/1) off carrier plate (6)
7	Install in the reverse order