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- How to Adjust a Mercedes' Headlights
How to Adjust a Mercedes' Headlights
In the U.S. the type,
adjustments, and illumination factors of all automobile lighting devices
are regulated by the Federal Motor Vehicle Safety Standard 108. The
headlights must function and be adjusted correctly. Your high beams must
disperse their beams straight forward and low beams down and to the
right while safely providing illumination without too much or too little
glare. It is wise to check the headlight adjustment on your Mercedes at
least every year. Doing it yourself will save you time and money. It
will also make driving safer for you and others you may meet on the road
at night. All it takes is time, some basic tools and a little patience.
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Things You'll Need
- ratchet set
- 1/4-inch screwdriver, at least 8 inches long
- flashlight (if needed)
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Instructions
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-
1
Open the hood and prop it up.
-
2
Remove components if necessary to allow access to the
left/right and up/down adjustment knobs. They are on top of the rear
side of the headlight. The upper knob adjusts the beam to the left and
right. The lower knob controls up/down adjustments.
-
3
Park with the passenger side of the car parallel to a solid
fence or wall and about four feet from it. When there is dim light or
darkness, turn on the lights and use your screwdriver to adjust the
up/down knob on the passenger-side headlight until the light beam is
parallel to the ground (you can see the beam of light against the
surface of the wall).
-
4
Turn the car so that it faces the wall approximately one car
length away. Adjust the up/down knob on the driver-side headlight until
it is at the same level as the passenger side headlight. Then adjust
both sides until the small groove on top of the beam cutoff is directly
in front of the light.
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5
Reinstall any components that you removed. Close the hood.
Tips & Warnings
- This is method is generic for Mercedes models. Some may differ, as there are many models out there.
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References
- Mercedes-Benz Forum
- fixya.com: Technical Support, Manuals, Troubleshooting and Product Recommendations
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