Headlamps, Adjusting

Headlamps, Adjusting

Checking and Adjusting Conditions

• Tire pressure OK.

• Headlamp lenses must be clean and dry.

• Headlamps lenses must not be damaged.

• Headlamp reflectors and bulbs OK

With Steel Suspension:

• Vehicle load must be created.

Vehicle load on driver's seat in otherwise unloaded vehicle (curb weight).

• One person or 75 kg.

The curb weight is the weight of the operational vehicle with completely full fuel tank, including the weight of all equipment carried in operation.

• Fuel tank: at least 90% full.

• Equipment: e.g. spare wheel, tools, vehicle jack, fire extinguisher, etc.

If the fuel tank is not at least 90% full, the load must be created as follows.

- Check fuel tank fill lever in instrument cluster tank gauge and compare with the following table. Place additional weight in the luggage compartment, if necessary.






• Use fuel containers filled with water as additional weight (a 5 liter fuel container filled with water weighs 5 kg).

With Air Suspension:

• The compressed air reservoir must be filled. Start the engine and let it run at idle for approximately 2 minutes.

All Vehicles

• Roll the vehicle several yards or move it back and forth several times to seat the springs.

• The parking brake must not be engaged so the vehicle is not under tension.

• Vehicle and headlamp adjusting unit must be on a level surface.

• The headlamp adjusting unit must be aligned to the vehicle. Refer to the Headlamp adjusting unit instructions.






• The headlamp adjuster must be distance - a - 30 to 70 cm in front of the headlamp and should not deviate more than dimension - b - = 3 cm from the headlamp center point.

• The inclination dimension is set on the headlamp adjusting unit. Refer to the Headlamp adjusting unit operating instructions.

• The angle - arrow - is stamped on the top of the headlamp - 1 - in "%".






• The headlamp must be adjusted according to the angle dimension stamped on the headlamp.

• The percentage indicator is based on a 10 meter projection distance. Fro example, an angle dimension of 1.0% corresponds to 10 cm.

Procedure

- The vehicles must be standing on a flat surface.

- Turn the headlamp switch to low beam - not Auto.

- Vehicles with Halogen headlamps: set the range position thumbwheel to "0".

- Vehicles with HID headlamps: to prepare for the headlamp adjustment, in "Guided Functions", select "basic setting" on the Vehicle Diagnosis, Testing & Information System (VAS5051B).

• The headlamps move into the basic setting with this program.

- During the program, you will be asked to perform a headlamp adjustment.

Headlamp Adjustment






• The horizontal light-dark border must touch the dividing line - 1 - on the adjusting unit test surface.

• The point - 2 - between the left horizontal part and the right vertical part of the light-dark border must run vertically through the central mark - 3 -. The bright core of the light beam must be to the right of the vertical.

• To determine the inflection point - 2 - more easily, cover and uncover the left half of the headlamp several times. Then check the low beam again.

• After correct headlamp adjustment, the center of the high beam light beam must be on the central marking - 3 -.

- To adjust the height of the headlamp, set the light-dark border just under the dividing line with the adjustment screw - 1 -.






- Then adjust the light-dark border, starting from the bottom, on the dividing line.

- For side adjustment, turn adjusting screw - 2 -.

• The allocation on the right headlamp is reversed.

- Vehicles with HID headlamps: after the headlamp is adjusted, complete the "basic setting". Switch off the ignition and disconnect the diagnostic connector.