Remove/install lamp unit

AR82.10-P-4730RT

Remove/install lamp unit

20.11.2019

Model

251

1

Screw

4

Screw

6

Front fender

2

Front bumper

5

Clip

7

Screw

3

Bracket

8

Screw

9

Seal

10

Screw

11

Electrical connector

12

Electrical connector

13

Screw

E1

Left front lamp unit

E2

Right front lamp unit

 

Remove/install

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

 Danger

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 on xenon headlamps and glass splinters produced by bursting xenon bulbs. Risk of poisoning caused by inhalation of mercury vapors and by swallowing of/skin contact with toxic salts and mercury compounds.

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 danger zone. Ensure sufficient ventilation in the working area.

AS82.10-Z-0001-01A

1

Switch off ignition and remove the transmitter key from the EIS [EZS] control unit

 In vehicles with code 889 (KEYLESS-GO): Press the 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 hood

AR88.40-P-1000RT

3

Remove radiator grille

AR88.40-P-4001RT

4

Remove front section of fender liner in fender at right or left

AR88.10-P-1310RT

5

Remove screw (1, 7)

6

Remove screw (4), swivel holder (3) toward vehicle and remove to the rear

7

Lift front fender (6) out of front bumper (2) using assembly wedge

 Installation: Ensure that the front fender (6) is seated correctly in the clip (5).

 Mounting wedge

*110589035900

8

Detach front bumper (2) and swivel out of working area

9

Disconnect electrical connection (11)

 Only on vehicles with code 615 (Bi-xenon headlamps with active light function) or with code 616 (Bi-xenon headlamp unit with integrated asymmetrical curve illumination).

10

Disconnect electrical connection (12)

11

Remove screw (8, 10, 13)

12

Remove left front lamp unit (E1) or right front lamp unit (E2)

 Installation: Ensure that the seal (9) is seated correctly on left front lamp unit (E1) or right front lamp unit (E2).

13

Install in the reverse order

 Do not close hood yet.



Check

14

Check gap dimensions at left front lamp unit (E1) or right front lamp unit (E2), adjust if necessary

Refer to:



Gap dimensions on hoods, doors and lids

AR60.00-P-0700-01RT

Gap dimension

*BE60.00-P-1001-01S

Gap dimension

*BE60.00-P-1001-01S

Gap dimension

*BE60.00-P-1001-01S

 Feeler gauge

*129589032100

15

Adjust the zero position of the xenon headlamps



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04A

 Only on vehicles with code 615 (Bi-xenon headlamps with active light function) or with code 616 (Bi-xenon headlamp unit with integrated asymmetrical curve illumination).

 Commercially available devices/tools:
STAR DIAGNOSIS diagnosis system

16

Check and correct adjustment of headlamps



AP82.10-P-8260RT

17

Close engine hood

Test and adjustment values for gap dimensions

Number

Designation

Model 251

BE60.00-P-1001-01S

Gap dimension

Lamp unit to engine hood

Dimension "A"

mm

4 (1)

Lamp unit to fender

Dimension "B"

mm

4 (1)

Lamp unit to bumper

Dimension "C"

mm

4 (1)

Engine hood to bumper

Dimension "D"

mm

6 (1)

Engine hood to front grille/bumper to front grille

Dimension "E"

mm

7 (1)