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

MODEL 164 

Fig 1: Identifying Headlight Beam Adjustment Control Unit Remove/Install Component (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Headlight Beam Adjustment Control Unit Remove/Install Component (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	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.	AS54.10-Z-0001-01A
	Notes on battery	All models	AH54.10-P-0001-01A
	Information on preventing damage to electronic components due to electrostatic discharge	All models	AH54.00-P-0001-01A
	Notes on AGM battery		AH54.10-P-0002-01A
1.1	Read out data of headlamp range adjustment control unit (N71) and store temporarily	Only when replacing the headlamp range adjustment control unit (N71) and if it can still be read out.
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A
2	Move head restraint of front passenger seat (1) all the way down	Otherwise, the sun visor can be damaged when tilting the seat backrest forward.
3	Move front passenger seat (1) forward and upward as far as possible, tilt seat backrest forward
4	Remove cover (2).
5.1	Separate floor covering (3) at both depicted positions (arrows)	If it has not yet been separated earlier.
6	Move front passenger seat (1) all the way back
7	Fold floor covering (3) forward and move front passenger seat (1) as far forward as possible until the battery compartment is accessible	Make sure that the floor covering (3) does not tear at the breakover.
8	Switch off ignition and remove the transmitter key from the EIS [EZS] control unit	On vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until the ignition is switched off. Remove transmitter key from vehicle and store it in a location beyond its transmission range (at least 2 m).
9	Remove spreader clip (5) and detach air outlet (4)	Replace spreader clip (5) if necessary.
10	Remove battery cover (12)
11	Unscrew nut (9) on left and right	Put down headlamp range adjustment control unit (N71) on the battery (G1).
12	Release plug (10) and disconnect.
13	Remove headlamp range adjustment control unit (N71)
14	Install in the reverse order
15.1	Transmit stored data into the headlamp range adjustment control unit (N71)	Only when replacing the headlamp range adjustment control unit (N71).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A
16.1	Check headlamp adjustment, correct if necessary	Only when replacing the headlamp range adjustment control unit (N71).
	Check and correct headlamp adjustment		AP82.10-P-8260GZ

COMMERCIALLY AVAILABLE TOOLS

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