BMW 7 Series: Adjusting Dynamic Light Spot Headlight

WARNING: Danger of injury! Laser radiation at headlight adjustment aid.

Do not look into the beam!

NOTE: Dynamic Light Spot headlight must be adjusted in the following cases:

• After removing and installing/replacing the Dynamic Light Spot headlight
• After removing and installing/replacing the front bumper panel
• In the event of customer complaints about the lighting performance

NOTE: There are 2 ways of adjusting the Dynamic Light Spot headlight:

1. With electronic headlight adjuster "MAHA Lite 3".

2. With headlight adjustment aid.

The following operations describe the adjustment using the headlight adjustment aid:

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

• Comply with TEST REQUIREMENTS FOR HEADLIGHTS VERTICAL AIM 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. 8: Identifying Distance From Wall

NOTE: Headlight adjustment aid (2 299 574) and mountings (2) are labelled (see middle graphic):

• Headlight adjustment aid (2 299 574) has label A, B, C, D with the associated numbers 1-5.
• Mountings (2) are labelled A, B, C, D.

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
• Attach laser (4) to the headlight adjustment aid (2 299 574). To switch on the laser (4), push up the flap in front of the laser (4).

Fig. 9: Preparing Headlight Adjustment Aid

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).

NOTE: The height of the headlight adjustment aid (2 299 574) is not specified.

Fig. 10: Positioning And Aligning Headlight Adjustment Aid

IMPORTANT: To correctly adjust the Dynamic Light Spot headlight, ensure that the laser beam strikes the middle of the vehicle.

To do so, position tool (4) for example laterally to bead (3) as shown. Laser beam (1) must strike tool (4) at the point of intersection with bead (2).

If not, correct the alignment of the headlight adjustment aid (2 299 574).

Switch on ignition.

Switch on the low-beam headlight (high-beam headlight is switched on by the procedure).

Perform test procedure via path:

• Body
• Lights
• Adjust non-dazzle high-beam headlight

IMPORTANT: Dynamic Light Spot headlight must not be adjusted without the test procedure!

Fig. 11: Identifying Correct Laser Beam Position

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. 12: Determining Distances

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. 13: Measuring Distances

Check adjustment of Dynamic Light Spot headlight 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).

NOTE: The adjustment is checked on the left and right sides separately.

Fig. 14: Checking Adjustment Of Dynamic Light Spot Headlight

Examples of light patterns:

Dynamic Light Spot headlight, left side:

1. Incorrect adjustment: horizontally too high, vertically too far right
2. Correct adjustment

Dynamic Light Spot headlight, right side:

3. Incorrect adjustment: horizontally too high, vertically correct
4. Correct adjustment

Fig. 15: Identifying Examples Of Light Patterns

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

NOTE: Upper screw (1) is for height adjustment.

Lower screw (2) is for lateral adjustment.

Fig. 16: Adjusting Dynamic Light Spot Headlight With Screws

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