Check, adjust low beams · ap8210p8263ea · Mercedes-Benz WIS

AP82.10-P-8263EA

Check, adjust low beams

15.11.2016

Model	166
	as of model year 2016
	except code 460 (Canada version)
	except code 494 (US version)
	except code 640 (High-performance LED)
	except code 641 (Dynamic LED headlamps, left-hand traffic)
	except code 642 (Dynamic LED headlamps, right-hand traffic)
Model	292
	except code 460 (Canada version)
	except code 494 (US version)
	except code 640 (High-performance LED)
	except code 641 (Dynamic LED headlamps, left-hand traffic)
	except code 642 (Dynamic LED headlamps, right-hand traffic)

Shown: Model 292

01	Headlamp aimer
A	Distance

P82.10-7981-06

Shown: model 292 with ECE version of halogen headlamp

E1	Left front lamp unit
E1e1	Left high beam
E1e2	Left low beam

P82.10-7983-01

Shown on general headlamp range controller

5	Exterior lights switch
6	Headlamp range controller

P82.10-7443-01

Light gradient for low beams

1	Light-dark boundary
2	Reference line for height adjustment
3	Central mark
4	Reference line for lateral setting

P82.10-7462-76

Shown: Model 292

H	Height adjusting screw
S	Side position adjusting screw

P82.10-7970-01

 Danger !	Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
	General information on checking/correcting headlamp adjustment		AH82.10-P-1000-01A
	Preparatory activity
1	Check operation of headlamp range adjustment	For vehicle with headlamp range controller (6).
			AP82.10-P-8250EW
2	Determine degree of inclination for main headlamps
	Notes on determining headlamp aiming values		AH82.10-P-1005-01A
		 The degree of inclination for the main headlamps is specified on the model plate on the B-pillar on the passenger side.
3	Park the vehicle on a horizontal, level surface	 Maximum permissible height difference of surface for: Vehicle : 1 mm/m, Headlamp aimer (01): 0.5 mm/m.
4	Prepare vehicle for checking/correcting headlamp adjustment		AP82.10-P-8260-10E
5	Align headlamp aimer (01)	 It is essential to align the headlamp aimer (01) parallel to the front of the vehicle. The headlamp adjustment will otherwise be incorrect, which may jeopardize the road safety of the vehicle.
		 Align the headlamp aimer (01) at a distance (A) of approx. 30 cm in front of the left front lamp unit (E1) or right front lamp unit level with the left low beams (E1e2) or right low beams parallel to the front of the vehicle. Other country-specific regulations or specifications in the operating instructions from the headlamp aiming device manufacturer must be observed accordingly.
6	Set specified degree of inclination for main headlamps at headlamp aimer (01)
7	Switch on low beam
	Check and, if necessary, adjust (checking and adjustment of the low beams is described at the left low beam headlamp (E1e2); the same procedure is used for the right side.)
8.1	Check height adjustment of left low beam headlamp (E1e2); adjust if necessary	For vehicle with steel suspension on front and rear axle.
		 If, for a low beam light gradient, the height adjustment is correct, the light-dark boundary (1) of the left low beam headlamp (E1e2) in each case to the left of the center mark (3) must be congruent with the reference line for the height adjustment (2) in the headlamp aimer (01), as shown in the color image. The colored area of the light-dark boundary (1) of the left low beam headlamp (E1e2) must be above the reference line for the height adjustment (2), as shown in the color image.
		If height adjustment of left low beam (E1e2) is not correct.
		
		Turn the adjustment screw for the height adjustment (H) to correct the height adjustment of the left low beam headlamp (E1e2).
8.2	Check height adjustment of left low beam headlamp (E1e2); adjust if necessary	For vehicle with level control on front and rear axle.
		 If, for a low beam light gradient, the height adjustment is correct, the light-dark boundary (1) of the left low beam headlamp (E1e2) in each case to the left of the center mark (3) must be congruent with the reference line for the height adjustment (2) in the headlamp aimer (01), as shown in the color image. The colored area of the light-dark boundary (1) of the left low beam headlamp (E1e2) must be above the reference line for the height adjustment (2), as shown in the color image.
		If height adjustment of left low beam (E1e2) is not correct.
		
		Move to calibrated vehicle level.
		Diagnosis  Control units view  Chassis  ADS - Adaptive Damping System  Actuations  Move to calibrated vehicle level and check headlamp adjustment again.
			AD00.00-P-2000-04A

		
		Headlamp adjustment incorrect

		
		Calibrate level in chassis control unit.
		Diagnosis  Control units view  Chassis  ADS - Adaptive Damping System  Adaptations  Teach-in processes  Check level calibration and headlamp adjustment again.
			AD00.00-P-2000-04A
		If the height adjustment of the left low beam (E1e2) is still incorrect after calibration of the vehicle level and the level calibration.
		
		Turn the adjustment screw for the height adjustment (H) to correct the height adjustment of the left low beam headlamp (E1e2).
9	Check lateral adjustment of left low beam headlamp (E1e2); adjust if necessary	 If, for a low beam light gradient, the lateral adjustment is correct, the light-dark boundary (1) of the light gradient for the left low beam headlamp (E1e2) starting from the center mark (3) on the right must be congruent with the reference line for the lateral adjustment (4) in the headlamp aimer (01), as shown in the color image. The colored area of the light-dark boundary (1) of the left low beam headlamp (E1e2) must be above the reference line for the lateral adjustment (4), as shown in the color image.
		If lateral adjustment of the left low beam headlamp (E1e2) is not correct.
		
		Turn the adjustment screw for the lateral adjustment (S) to correct the lateral adjustment of the left low beam headlamp (E1e2).
	Concluding tasks
10	Reset switch positions to input condition	Only if the high beam setting is not to be checked afterwards.

Referenced documents

ad0000p200004a Connect STAR DIAGNOSIS and read out fault memory
ad0000p200004a
ah8210p100001a General information on checking/correcting headlamp adjustment
ah8210p100501a Notes on determining headlamp aiming values
ap8210p8250ew Check function of headlamp range adjustment
ap8210p826010e Prepare vehicle for checking/correcting headlamp adjustment
as0000z000501a Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.