My 2004 Atrium 8411 in research with HeadlightDepot.com and a live video on how to work with these Mercedes ML350 and 500 headlights, are the same headlight. However mine are halogen for hi beem and HID STOCK for low beams. Know first if yours are all 4 bulbs of halogens model like maybe the 8410 or 2 halogen and 2 HIDs. Extreme important if ordering headlights as the Atrium wiring to the headlights depends on this.
Drove this home in the dark from Texas to WA last Jan and these headlights were so poor, I was freaking out on the back roads. Ran mostly with my lights o high. Still the lights were aimed way to low. I tried adjusting them with the plastic nut from behind, but not able to see or know what I was doing lead nowhere. Watched the video
and it all was clear.
Now I see the up and down white adjustments have a metric nut on the back. I put spray lube on these as they have some factory undercarriage spray clogging their movement. I put 2 new H7 halogen in and left the HID's alone for now hoping raising the headlights will now shine DOWN the road vs at the ground. Not a clue how the prior owner ever drove this in the dark?
You can clearly see the back sides in my photo. Hope this saves someone the hours I spend to figure these out.
One other hint, if removing the complete assembly just remove the top nut and then with the 2 brackets that are screwed into the fiberglass on the left and right, just loosen the screws and pull the headlight bracket apart. I did not remove these if I did not want too.
Linear Mode
