2005 E320 Headlamp Low Beam Out
 

Hi; I got a headlamp warning message, low beam; sure enough, when I checked, the low beam passenger side is out.
Any idea what the cost of replacement is? Far as I know this car has the standard lamp system. Is this a DIY?

If its a non-HID lighting its just a normal halogen lamp. Open hood...find cover on back of headlight housing....remove...install new lamp, put cover back on....

Thought (hoped) this was so; I have not had one go out before.
At least it's not the expensive ones.
Thanks a bunch!

Ok, I got two new Sylvania bulbs and got to work.
Nothing to it but it was a ***** before I got finished.
For one thing, the insulation on the wires to the lamp socket was brittle and started flaking off; liquid tape to the rescue.
Also I dropped first a metal clip, then a bulb, and "down in there somewhere" it went. When will I ever learn? I finally fished everything out with a magnet. Then I could not get the drivers' side to click back into place. Finally I removed the coolant reservoir and got a better grip, then got it in there.
Finished at last, and both low beams worked. No more messages.
Dangit.

Look on the bright side(PUN!!), you didn't have to pay anyone to do it. :D

You said it right!
I took her in to the dealer a few months back, with a coupon for a "bargain" 4-wheel alignment. Of course, they refused to do the alignment without changing the two upper ball joints. $545 but they did not have the ball joints in stock. Good; I'll be back next Friday with the new ball joints installed.
I ordered the pair from a dealer (OEM) on-line, total cost $99 for the pair. Took me less than 1 hour to install them both, including jacking and removing the wheels, then putting it all back. Plus, I didn't see anything wrong with the old ones.
Boy, $545 for that is some sweet money.
You know why the "bargain" wheel alignment is one of the most profitable come-ons for a dealer: they 'find" all kinds of things wrong, and get a lot of business.