Remove/install xenon headlamp control unit - AR82.10-P-4632RTA

MODEL 251 as of model year 2011 

Fig 1: Identifying Xenon Headlamp Control Unit Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of death  caused by high voltage levels present at xenon headlamps. Risk of explosion/fire hazard  due to highly flammable substances in the area of damaged xenon bulbs Risk of injury  due to UV light, hot components on xenon headlamps and glass splinters when xenon bulbs burst Risk of poisoning  caused by inhalation of mercury vapors and by toxic salts and mercury compounds being ingested or coming into contact with skin	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 insulated safety shoes, safety glasses and protective gloves. Remove highly inflammable materials from the hazard area. Ensure sufficient ventilation in the working area.	AS82.10-Z-0001-01A
		Switch off ignition and remove transmitter key or Keyless Go start/stop button from EZS control unit Keyless Go start/stop button only for vehicles with code (889) Keyless Go.
1	Remove engine cover above headlamp
2	Remove lamp unit	Only on passenger side.	AR82.10-P-4730RT
3	Remove bolts (1)
4	Carefully remove xenon headlamp control unit (E1n1)	One electrical connector still remains behind this.
5	Disconnect electrical connector
6	Remove xenon headlamp control unit (E1n1)
7	Install in the reverse order