It will vary depending on if you have HID lighting or Halogen Lighting which you did not include in your question. 2008 Mercedes-Benz ML350 headlight bulb general replacement procedure: Purchase the correct replacement headlight bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the headlight bulb lamp replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
The low beam bulb, on a Mercedes Benz ML 350, can be accessed from the back of the headlight. Take hold of the bulb, push in and turn, the bulb will come out and can be replaced.
how to replace 2007 Mercedes GL450 Headlight Bulb Low Beam
Either from a Mercedes dealer, who can order one for you . Or from a breaker's yard, dealing in European cars.
Carry it to dealer who will replace on low beam headlight for $15 +/- dollars in about 5 minutes.
call car talk look it up on google.
after removing dust cover from low beam head light..the light socket will not turn (counter clock wise) is there a trick
try coloradofans.comit as everthing you could wanna know about colorados, it has helped me out sooo much
replace low beam bulb 2006 kia senoda
If only the low-beam is out, you will need to replace the low-beam bulb. It is probably not necessary to replace the entire headlight assembly.
Low Beam Bulb - Type H7 HalogenHigh Beam Bulb - Type H1 Halogen
how to replace high/low beam, turn signal lever on 1996 subaru outback wagon
Low beam bulb is burnt out. Replace it.