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Home >> Mercedes Benz >> 2009 >> R320 >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Electrical System - Body - 251 Chassis - 1 Of 5 >> Testing & Repair >> Remove/install power module of headlamp range adjustment (HRA [LWR]) - AR82.10-P-4013RT

Remove/install power module of headlamp range adjustment (HRA [LWR]) - AR82.10-P-4013RT

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

Fig 1: Identifying Power Module Of Headlamp Range Adjustment HRA (LWR) Remove/Install Components
G10122309Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
DANGER 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
DANGER Risk of death  caused by high voltage levels present at xenon headlamps.
Risk of explosion/fire hazard  through highly flammable material in the area of damaged xenon bulbs.
Risk of injury  through UV light, hot components on xenon headlamps and glass splinters when xenon bulbs burst.
Risk of poisoning  through inhalation of mercury vapor and swallowing of or skin contact with toxic 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 complete lighting system. Wear insulating safety shoes, safety glasses and protective gloves. Remove highly inflammable materials from the hazard area. Ensure that the workplace is sufficiently ventilated. AS82.10-Z-0001-01A
1.1 Remove fender liner front section in front fender IMPORTANT Left-hand side. AR88.10-P-1310RT
1.2 Remove right front lamp unit (E2) IMPORTANT Right side. AR82.10-P-4730RT 
2 Remove bolts (1)    
3 Pry up HRA [LWR] power module (E1n3, E2n3) INSTALLATION IMPORTANT Make sure that the rubber seal (2) is seated correctly.  
4 Install in the reverse order    
INSPECT Checking     
5 Adjust the zero position of the xenon headlamps STAR DIAGNOSIS system *WH58.30-Z-1048-13A 
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory AD00.00-P-2000-04A
6 Check the setting of the xenon headlamps and adjust if necessary    
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Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS Compact diagnosis system for passenger cars 6511 1801 00