Remove/install headlight beam adjustment control unit - AR82.10-P-4081V

MODELS 171.4 with CODE (614) Bi-xenon headlamp unit 

Fig 1: Identifying Headlight Beam Adjustment Control Unit Components

Courtesy of MERCEDES-BENZ USA

	Removal/installation
1.1	Put basic data of headlamp range adjustment control unit (N71) into intermediate storage in STAR DIAGNOSIS	When replacing the headlamp range adjustment control unit (N71). Installation:  Transmit basic data from intermediate storage to new headlamp range adjustment control unit (N71).
	Connect STAR DIAGNOSIS, read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A
2	Remove left floor covering in footwell		AR68.30-P-4010V
3	Unscrew nuts (2)
4	Remove tie straps from wiring harness in vicinity of screw bolt of nut (1)	Installation:  Ensure that wiring harness is installed tension-free. Replace cable strap.
5	Push off wiring harness bracket from screw bolt of nut (1) using suitable screwdriver and unscrew nut (1)
6	Remove headlamp range adjustment control unit (N71) and route between the A-pillar and the wiring harness towards the rear until the electrical connector (3) is accessible
7	Release electrical connector (3), disconnect and remove headlamp range adjustment control unit (N71)
8	Install in the reverse order

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1048-13A	STAR DIAGNOSIS diagnosis system, Compact Passenger Car	6511 1801 00