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Home >> Mercedes Benz >> 2015 >> CLA250 Base >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Electrical System - Body - 117 Chassis - 1 Of 2 >> Testing & Repair >> Remove/install lamp unit - AR82.10-P-4730NKB

Remove/install lamp unit - AR82.10-P-4730NKB

MODEL 117 

MODEL 176 

MODEL 242 

MODEL 246 

Shown on MODEL 246 up to model year 2015 with CODE 600 (Headlamp cleaning system) 

Fig 1: Lamp Unit Remove/Install Components - Shown On Model 246 With Code 600
G10250630Courtesy of MERCEDES-BENZ USA

Shown on MODEL 246 as of model year 2015 with CODE 632 (Static right-hand traffic LED headlamp) 

Fig 2: Lamp Unit Remove/Install Components - Shown On Model 246 With Code 632
G10250631DANGERNOTESREMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSIMPORTANTREFER TO SELF-DIAGNOSTIC SYSTEMSINSPECTREFER TO MAINTENANCECourtesy of MERCEDES-BENZ USA
DANGER Risk of death  due to high voltage in xenon headlamps. Risk of explosion/risk of fire  caused by highly flammable materials in the vicinity of damaged xenon bulbs. Risk of injury  caused by UV light, hot components at xenon headlamps and glass splinters produced by bursting xenon bulbs. 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 touch parts conducting high voltage. Persons with active electronic implants  (e.g. cardiac pacemakers) must never work on xenon headlamps. Switch off the 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
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Connect diagnostic system and save basic data for left front lamp unit (E1) or right front lamp unit (E2) Model 117, 176, 242, 246
with code 614 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 615 (Bi-xenon headlamps with active light function)
Model 117, 176, 242, 246
with code 618 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 621 (Intelligent Light System (left-hand traffic))
Model 117, 176, 242, 246
with code 622 (Intelligent Light System)
Model 176
as of model year 2016
with code 631 (Static LED headlamps, left-hand traffic)
Model 176
as of model year 2016
with code 632 (Headlamps, LED, static, right-side traffic)
Model 246
with code 631 (Static LED headlamps, left-hand traffic) Model 246
with code 632 (Headlamps, LED, static, right-side traffic)
Only when replacing left front lamp unit (E1) or right front lamp unit (E2).
 
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
2 Switch on ignition and store transmitter key outside of transmission range (min. 2 m)    
3.1 Remove front bumper (2) Only when removing left front lamp unit (E1) and right front lamp unit (E2).  
AR88.20-P-2000NKB
3.2 Mask off front bumper (2) in area of left front lamp unit (E1) or right front lamp unit (E2) using suitable duct tape (3) and detach front bumper (2) Only when removing left front lamp unit (E1) or right front lamp unit (E2).  
AR88.20-P-2000NKB
4 Release catch hook (arrow) of telescopic nozzle (4) using suitable tool Model 117, 242, 246
with code 600 (Headlamp cleaning system)
Model 176
up to model year 2016
with code 600 (Headlamp cleaning system)
 
5 Pull telescopic nozzle (4) forward and let hang with hose connected Model 117, 242, 246
with code 600 (Headlamp cleaning system)
Model 176
up to model year 2016
with code 600 (Headlamp cleaning system)
 
6 Remove bolts (1)    
7 Unclip washer fluid hose at left front lamp unit (E1) Model 176
as of model year 2016
Only when removing the left front lamp unit (E1).
 
8 Disconnect electrical connectors on left front lamp unit (E1) or right front lamp unit (E2) IMPORTANT The number of electrical connectors varies according to vehicle equipment.  
9 Remove left front lamp unit (E1) and right front lamp unit (E2) from vehicle    
10.1 Remove left front actuation module, LED exterior lighting or right front actuation module, LED exterior lighting Only when replacing the left front lamp unit (E1) or the right front lamp unit (E2).  
Model 117, 176, 242
as of model year 2016
with code 631 (Static LED headlamps, left-hand traffic)
Model 117, 176, 242
as of model year 2016
with code 632 (Headlamps, LED, static, right-side traffic)
Model 246
with code 631 (Static LED headlamps, left-hand traffic)
Model 246
with code 632 (Headlamps, LED, static, right-side traffic)
AR82.10-P-4655NKA
10.2 Remove left xenon light power supply module or right xenon light power supply module Only when replacing the left front lamp unit (E1) or the right front lamp unit (E2).  
Model 117, 176, 242, 246
with code 614 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 618 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 621 (Intelligent Light System (left-hand traffic))
Model 117, 176, 242, 246
with code 622 (Intelligent Light System)
Model 117, 242, 246
with code 615 (Bi-xenon headlamps with active light function)
AR82.10-P-4635NKA 
11 Note numerical sequence of LAM number of the left front lamp unit (E1) or right front lamp unit (E2) Only when replacing the left front lamp unit (E1) or the right front lamp unit (E2).  
12 Remove headlamp control unit Model 176
as of model year 2016
with code 631 (Static LED headlamps, left-hand traffic)
Model 176
as of model year 2016
with code 632 (Headlamps, LED, static, right-side traffic)
Model 246
with code 631 (Static LED headlamps, left-hand traffic)
Model 246
with code 632 (Headlamps, LED, static, right-side traffic)
Only when replacing the left front lamp unit (E1) or the right front lamp unit (E2).
 
AR82.10-P-4660NKB 
13 Remove LED module for front lamp unit Model 117, 176, 242
as of model year 2016
with code 631 (Static LED headlamps, left-hand traffic)
Model 117, 176, 242
as of model year 2016
with code 632 (Headlamps, LED, static, right-side traffic)
Model 246
with code 631 (Static LED headlamps, left-hand traffic)
Model 246
with code 632 (Headlamps, LED, static, right-side traffic)
Only when replacing the left front lamp unit (E1) or the right front lamp unit (E2).
 
AR82.10-P-4656NKB 
14 Install in the reverse order    
  Initial startup     
15 Carry out SCN coding of left front lamp unit (E1) or right front lamp unit (E2) Model 117, 176, 242, 246
with code 614 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 615 (Bi-xenon headlamps with active light function)
Model 117, 176, 242, 246
with code 618 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 621 (Intelligent Light System (left-hand traffic))
Model 117, 176, 242, 246
with code 622 (Intelligent Light System)
Model 176
as of model year 2016
with code 631 (Static LED headlamps, left-hand traffic)
Model 176
as of model year 2016
with code 632 (Headlamps, LED, static, right-side traffic)
Model 246
with code 631 (Static LED headlamps, left-hand traffic)
Model 246
with code 632 (Headlamps, LED, static, right-side traffic)
Only after replacing the left front lamp unit (E1) or the right front lamp unit (E2).
 
AR54.21-P-0015X
16 Transfer previously stored basic data to the left front lamp unit (E1) or right front lamp unit (E2) Model 117, 176, 242, 246
with code 614 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 615 (Bi-xenon headlamps with active light function)
Model 117, 176, 242, 246
with code 618 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 621 (Intelligent Light System (left-hand traffic))
Model 117, 176, 242, 246
with code 622 (Intelligent Light System)
Model 176
as of model year 2016
with code 631 (Static LED headlamps, left-hand traffic)
Model 176
as of model year 2016
with code 632 (Headlamps, LED, static, right-side traffic)
Model 246
with code 631 (Static LED headlamps, left-hand traffic)
Model 246
with code 632 (Headlamps, LED, static, right-side traffic)
Only after replacing the left front lamp unit (E1) or the right front lamp unit (E2).
 
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
17 Carry out initial startup of left front lamp unit (E1) or right front lamp unit (E2) Model 117, 176, 242, 246
with code 614 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 615 (Bi-xenon headlamps with active light function)
Model 117, 176, 242, 246
with code 618 (Bi-xenon headlamps)
Model 117, 176, 242, 246
with code 621 (Intelligent Light System (left-hand traffic))
Model 117, 176, 242, 246
with code 622 (Intelligent Light System)
Model 176
as of model year 2016
with code 631 (Static LED headlamps, left-hand traffic)
Model 176
as of model year 2016
with code 632 (Headlamps, LED, static, right-side traffic)
Model 246
with code 631 (Static LED headlamps, left-hand traffic)
Model 246
with code 632 (Headlamps, LED, static, right-side traffic)
Only after replacing the left front lamp unit (E1) or the right front lamp unit (E2).
 
INSPECT Check     
18 Check headlamp adjustment and correct if necessary    
REFER TO MAINTENANCE     AP82.10-P-8260GI