63 10 022 Adjusting dynamic light spot headlights (with headlight adjustment aid)

FUNCTIONAL DESCRIPTION OF DYNAMIC LIGHT SPOT HEADLIGHT 

Necessary preliminary work: 

• Remove the right and left engine compartment lid gasket mounting
• Loosen filler pipes for windscreen washer fluid and keep aside:
  • Loosen right strut
  • Loosen heat shield

Requirements for adjusting the Dynamic Light Spot headlight with headlight adjustment aid: 

• Comply with TEST PREREQUISITES  for headlight adjustment.
• Position vehicle in front of vertical surface, e. g. a wall (1), as shown.
• Distance (A): 4 - 10 m
• Dim lighting is helpful.
• Have a tape measure and black adhesive tape (maximum width of 2 cm) ready.

Fig 1: Identifying Distance From Wall

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Position of mounting (2) on headlight adjustment aid (2 299 574) is specified:

• Here by way of example mounting (B) at B4.

Prepare the headlight adjustment aid (2 299 574) as shown:

• Insert rods (1) into mountings (2) with identification (A, B) and clamp:
• Insert rods (3) into mountings (2) with identification (C, D) and clamp:
• Position front mountings (C, D) with rods (3) on headlight adjustment aid (2 299 574) as follows:
  • Mounting (C) at C5
  • Mounting (D) at D5

• Position rear mountings (A, B) with rods (1) on headlight adjustment aid (2 299 574) as follows:
  • Mounting (A) at A4
  • Mounting (B) at B4

• Secure the laser (4) on the adjustment aid of the headlight (2 299 574). To switch on the laser (4) slide up the flap in front of the laser (4).

Fig 2: Preparing Headlight Adjustment Aid

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Position headlight adjustment aid (2 299 574) at marked openings (1) in engine compartment as shown.

Align headlight adjustment aid (2 299 574) with longitudinally adjustable rods (2) using bubble level (3).

Fig 3: Positioning And Aligning Headlight Adjustment Aid

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IMPORTANT:

When the high-beam headlight is correctly set to prevent dazzle, the laser beam is at the height of the middle of the vehicle! 

Align laser (position 4 in image RB6300274) by slight twisting towards right or left in such a way that laser beam (1) meets exactly the center of the screw (2).

Switch the ignition on.

Perform test procedure via path:

• Body
• Lights
• Adjust targeted illumination (GZA)

Fig 4: Positioning And Aligning Headlight Adjustment Aid

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Determining distances: 

Measure and note down distance (A) between middle of Dynamic Light Spot headlight (3) and floor (2).

Measure and note down distance (B) between laser beam (1) and floor (2) on the vehicle.

Determine and note down distance (C):

Distance (C) = distance (B) - distance (A)

Fig 5: Adjusting Dynamic Light Spot Headlights (With Headlight Adjustment Aid)

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Attach adhesive tape markings (3, 4, 5 shown in black in the graphic) to the wall: 

1. Mark vertical laser beam (1) for example with adhesive tape (3) to wall (distance from floor (6) approx. 20 cm).
2. Measure distance (B) = 75 cm at top and bottom ends of adhesive tape (3) on both sides and mark. Connect markings with adhesive tape (4).
3. Measure distance (C) from the previous operation from the horizontal laser beam (2) on both sides downwards and mark with adhesive tape (5).

Fig 6: Measuring Distances

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Check setting of headlight for targeted illumination as follows: 

Light pattern of the Dynamic Light Spot headlight must be within the area (1) on both sides.

Here 1/3 of the light pattern must be above and 2/3 below line (2).

Fig 7: Checking Adjustment Of Dynamic Light Spot Headlight

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Examples of light patterns: 

1. Incorrect setting: horizontally too high, vertically too far left
2. Incorrect setting: horizontally too high, vertically too far right
3. Incorrect setting: horizontally correct, vertically too far right
4. Correct setting

Fig 8: Checking Adjustment Of Dynamic Light Spot Headlight

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If necessary, adjust Dynamic Light Spot headlight (3) with screws (1, 2).

Fig 9: Adjusting Dynamic Light Spot Headlight With Screws

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