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Home >> Mercedes Benz >> 2018 >> GLE550 >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Electrical System - Body - 166 Chassis - 4 Of 8 >> Maintenance >> Check, Adjust Low Beams >> Check, Adjust Low Beams - AP82.10-P-8263P

Check, Adjust Low Beams - AP82.10-P-8263P

MODEL 166 

as of model year 2016 

with CODE 641 (Dynamic LED headlamps, left-hand traffic) 

except CODE 460 (Canada version) 

except CODE 494 (US version) 

except CODE 640 (High-performance LED) 

MODEL 166 

as of model year 2016 

with CODE 642 (Dynamic LED headlamps, right-hand traffic) 

except CODE 460 (Canada version) 

except CODE 494 (US version) 

except CODE 640 (High-performance LED) 

MODEL 292 

with CODE 641 (Dynamic LED headlamps, left-hand traffic) 

except CODE 460 (Canada version) 

except CODE 494 (US version) 

except CODE 640 (High-performance LED) 

MODEL 292 

with CODE 642 (Dynamic LED headlamps, right-hand traffic) 

except CODE 460 (Canada version) 

except CODE 494 (US version) 

except CODE 640 (High-performance LED) 

Shown: Model 292 

G11970283

Shown: model 292 with ECE version of dynamic LED headlamp 

G11970284

Light gradient for low beams 

G11970285

Shown: Model 292 

G11970286

Light gradient for diagnostic light pattern 

G11970287
  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
IMPORTANT General information on checking/correcting headlamp adjustment   AH82.10-P-1000-01A
  Preparatory activity     
1 Determine degree of inclination for main headlamps    
IMPORTANT Notes on determining headlamp aiming values   AH82.10-P-1005-01A
    IMPORTANT The degree of inclination for the main headlamps is specified on the model plate on the B-pillar on the passenger side.  
2 Park the vehicle on a horizontal, level surface IMPORTANT Maximum permissible height difference of surface for:
Vehicle: ± 1 mm/m,
Headlamp aimer (01): ± 0.5 mm/m.		  
3 Prepare vehicle for checking/correcting headlamp adjustment   AP82.10-P-8260-10E 
4 Align headlamp aimer (01) NOTES
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.
IMPORTANT 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 (long range) (E1e16) 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.		  
5 Set specified degree of inclination for main headlamps at headlamp aimer (01)    
6 Switch on low beam at exterior lights switch IMPORTANT When testing and adjusting the low beams, make sure that the extended fog light function is not  active.  
  Check and, if necessary, adjust (checking and adjustment of the low beams is described at the left low beam headlamp (long range) (E1e16); the same procedure is used for the right side.)     
7.1 Check height adjustment of left low beam headlamp (long range) (E1e16); adjust if necessary For vehicle with steel suspension on front and rear axle.
IMPORTANT If for a low beam light gradient the height adjustment is correct, the light-dark boundary (1) of the light gradient for the left low beam headlamp (long range) (E1e16) 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 colored image. The colored area of the light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) must be above the reference line for the height adjustment (2), as shown in the color image.
If the height adjustment of the left low beams (long range) (E1e16) is not correct.
↓
Adjust zero position using diagnostic system in headlamp control unit.
Diagnosis → Control units view → Body → SG-SW left headlamp → Adaptations → Zero position adjustment.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    ↓
Prepare alignment of headlamp aimer (01).		  
      AP82.10-P-8260-09HA 
    ↓
Switch on rectangular diagnostic light pattern using diagnostic system.
Diagnosis → Control units view → Body → SG-SW left headlamp → Adaptations → Adjusting headlamps using diagnosis.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    ↓
When the diagnostic light pattern is switched on and the height adjustment is correct, the horizontal light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) 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). The colored area of the light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) must be above the reference line for the height adjustment (2).
If the height adjustment of the left low beams (long range) (E1e16) is not correct with the diagnostic light pattern switched on.
↓
Turn the adjustment screw for the height adjustment (H) to correct the height adjustment of the left low beam headlamp (long range) (E1e16).		  
7.2 Check height adjustment of left low beam headlamp (long range) (E1e16); adjust if necessary For vehicle with level control on front and rear axle.
IMPORTANT If for a low beam light gradient the height adjustment is correct, the light-dark boundary (1) of the light gradient for the left low beam headlamp (long range) (E1e16) 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 colored image. The colored area of the light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) must be above the reference line for the height adjustment (2), as shown in the color image.
If the height adjustment of the left low beams (long range) (E1e16) 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.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     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.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    ↓
Prepare alignment of headlamp aimer (01).		  
      AP82.10-P-8260-09HA 
    ↓
Switch on rectangular diagnostic light pattern using diagnostic system.
Diagnosis → Control units view → Body → SG-SW left headlamp → Adaptations → Adjusting headlamps using diagnosis.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    ↓
When the diagnostic light pattern is switched on and the height adjustment is correct, the horizontal light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) 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). The colored area of the light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) must be above the reference line for the height adjustment (2).
If the height adjustment of the left low beams (long range) (E1e16) is not correct with the diagnostic light pattern switched on.
↓
Turn the adjustment screw for the height adjustment (H) to correct the height adjustment of the left low beam headlamp (long range) (E1e16).		  
8.1 Check lateral adjustment of left low beam headlamp (long range) (E1e16); adjust if necessary For vehicle with steel suspension on front and rear axle.
IMPORTANT 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 (long range) (E1e16) starting at 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 on the color image. The colored area of the light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) must be above the reference line for the lateral adjustment (4), as shown in the color image.
When the diagnostic light pattern is switched on and the lateral adjustment is correct, the vertical light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) each starting at the center mark (3) must run upward at 90 0 to the reference line for the height adjustment (2) in the headlamp aimer (01). The colored area of the vertical light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) must be to the left of the center mark (3).
If the lateral adjustment of the left low beams (long range) (E1e16) is not correct with the diagnostics light pattern already switched on.
↓
Turn the adjustment screw for the lateral adjustment (S) to correct the lateral adjustment of the left low beam headlamp (long range) (E1e16).
If lateral adjustment of the left low beam headlamp (long range) (E1e16) is not correct.
↓
Adjust zero position using diagnostic system in headlamp control unit.
Diagnosis → Control units view → Body → SG-SW left headlamp → Adaptations → Zero position adjustment.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    ↓
Prepare alignment of headlamp aimer (01).		  
      AP82.10-P-8260-09HA 
    ↓
Switch on rectangular diagnostic light pattern using diagnostic system.
Diagnosis → Control units view → Body → SG-SW left headlamp → Adaptations → Adjusting headlamps using diagnosis.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    Check the height adjustment of the left low beam headlamp (long range) (E1e16) again using the diagnostic light pattern switched on; if necessary, correct by turning the adjustment screw for the height adjustment (H).
↓
Check the lateral adjustment of the left low beam headlamp (long range) (E1e16) with the diagnostic light pattern switched on; if necessary, correct by turning the adjustment screw for the lateral adjustment (S).		  
8.2 Check lateral adjustment of left low beam headlamp (long range) (E1e16); adjust if necessary For vehicle with level control on front and rear axle.
IMPORTANT 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 (long range) (E1e16) starting at 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 on the color image. The colored area of the light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) must be above the reference line for the lateral adjustment (4), as shown in the color image.
When the diagnostic light pattern is switched on and the lateral adjustment is correct, the vertical light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) each starting at the center mark (3) must run upward at 90 0 to the reference line for the height adjustment (2) in the headlamp aimer (01). The colored area of the vertical light-dark boundary (1) of the left low beam headlamp (long range) (E1e16) must be to the left of the center mark (3).
If the lateral adjustment of the left low beams (long range) (E1e16) is not correct with the diagnostics light pattern already switched on.
↓
Turn the adjustment screw for the lateral adjustment (S) to correct the lateral adjustment of the left low beam headlamp (long range) (E1e16).
If lateral adjustment of the left low beam headlamp (long range) (E1e16) 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.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     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.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    ↓
Prepare alignment of headlamp aimer (01).		  
      AP82.10-P-8260-09HA 
    ↓
Switch on rectangular diagnostic light pattern using diagnostic system.
Diagnosis → Control units view → Body → SG-SW left headlamp → Adaptations → Adjusting headlamps using diagnosis.		  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
    ↓
Check the height adjustment of the left low beam headlamp (long range) (E1e16) again using the diagnostic light pattern switched on; if necessary, correct by turning the adjustment screw for the height adjustment (H).
↓
Check the lateral adjustment of the left low beam headlamp (long range) (E1e16) with the diagnostic light pattern switched on; if necessary, correct by turning the adjustment screw for the lateral adjustment (S).		  
  Finishing activity     
9 Reset switch positions to input condition Only if the high beam setting is not to be checked afterwards.  
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