Remove/install bulbs of headlamp unit - AR82.10-P-1201RT

MODEL 251 with CODE (615) Bi-xenon headlamp unit with integrated curve illumination with CODE (616) Bi-xenon headlamp unit with integrated asymmetric curve illumination 

Fig 1: Identifying Headlamp Unit Bulbs Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Headlamp Unit Bulbs Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Removing
	Risk of death  caused by contact with parts conducting high voltages.	Do not touch parts which conduct high voltages. Persons who wear electronic implants (e.g. heart pacemakers) should never perform any work on the ignition system	AS15.10-Z-0001-01A
	Risk of death  caused by high voltage levels present at xenon headlamps. Risk of explosion/risk of fire  due to highly flammable materials in the area of damaged xenon bulbs Risk of injury  from UV light, hot components at xenon headlamps and glass splinters when xenon bulbs crack Risk of poisoning  from inhaling mercury vapors and from swallowing/skin contact with poisonous salts and mercury compounds	Do not come into contact with parts that are under high voltage. Persons with active electronic implants  (e.g. heart pacemakers) must never work on xenon headlamps. Switch off entire lighting system. Wear insulating safety shoes, safety glasses and protective gloves. Remove highly inflammable materials from the hazard area. Ensure the work area is adequately ventilated.	AS82.10-Z-0001-01A
1	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).
2	Open engine hood		AR88.40-P-1000RT
3	Remove cover (1) from left front lamp unit (E1) and right front lamp unit (E2)	Observe rotation direction information on the cover (1).
4	Release xenon headlamp ignition module (E1n2, E2n2) by twisting it and remove	Remove xenon headlamp ignition module with care, as the catch lugs can break. Note direction of rotation information on the rear of the xenon headlamp ignition module. The electrical connector (2) is disconnected automatically during removal.
5	Release retaining springs (arrows)
6	Remove left low beam (E1e2) or right low beam (E2e2)	Do not touch the left low beam (E1e2) or right low beam (E2e2) with the fingers during removal. Handle the glass bulb only with a soft, clean cloth.
7	Check power supply contact points for corrosion	If required, replace corroded parts.
	Install
8	Insert left low beam (E1e2) or right low beam (E2e2) and hold	Do not touch the left low beam (E1e2) or right low beam (E2e2) with the fingers during installation. Handle the glass bulb only with a soft, clean cloth. Ensure that they are installed in the correct position (notch).
9	Lock retaining springs (arrows)
10	Fit xenon headlamp ignition module (E1n2, E2n2) and lock by twisting	Observe installation position and direction of rotation information on the rear of the xenon headlamp ignition module.
11	Connect electrical connector (2)
12	Install cover (1) at left front lamp unit (E1) or right front lamp unit (E2)	Check seal in the cover for damage and wear, replace if necessary. Note direction of rotation information on the cover.
13	Close engine hood