Mercedes E-CLASS W211 XENON headlight repair guide, part identification; HID ballast, igniter, bulbs

[@MaxCroat]

A question regarding the two modules on the bottom of the headlight assembly - my left side light went out, as in sometimes it doesn't turn on at all and other times it turns on and off intermittently. Which of these modules would be faulty in this situation? I'm assuming the ballast, the first module you showed, since that is the one controlling the shining/brightness of the bulb if I understand correctly. The range control unit shouldn't have anything to do with my issue I assume. Also, I already confirmed the bulbs and the igniters were OK by putting the parts from the right headlight to the left one and vice versa, and the problem still remains on the left side headlight, so it has to be one of these two modules on the bottom.

[@xenonland]

It should be the ballast 5Dv008290-00

[@MaxCroat]

@@xenonland Thank you very much for the quick response.

[@xenonland]

@@MaxCroat u r welcome

[@A8D92]

I recently had an igniter fitted but it burnt out because it came loose. I went to fit one myself, but when I turn it, it doesn't lock into place. As in the 4 tabs that go into the metal ring, it doesn't snap into place when you turn the igniter to 12 o'clock position. Any ideas? The white indents inside the igniter are lined up and goes in, I am also able to connect the wire after it turns to lock position, but with the slightest touch it comes loose.

[@felit9991]

Thank you so much! It’s so hard to take them out! I have a question, does the base model of e320 2004 w211 have these? I wanted to look but it’s so hard to check. I guess all I have to do is check if it has the igniter on the back? Also what do you think of the LEDs? I feel like cars with them blinds oncoming traffic. Or even raised trucks behind you at stop lights.

[@xenonland]

The base models also have Xenons. Yes, when and if you remove the rear cover, if you see any igniter (black or silver), then you have xenon headlights. If you have only H7 bulb, then you have halogen type headlight

[@felit9991]

@@xenonlandthank you