Need instructions on how to replace headlight bulb - Mercedes-Benz Forum
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#1 (permalink) Old 04-24-2010, 08:52 PM
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Need instructions on how to replace headlight bulb

Passenger side headlight is out. First time having to replace. Instructions on how to replace would be great. Also, can I get the bulb at Pep Boys?

Thanks for your assistance!
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#2 (permalink) Old 04-25-2010, 06:04 AM
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Originally Posted by HeadhunterGL View Post
Passenger side headlight is out. First time having to replace. Instructions on how to replace would be great. Also, can I get the bulb at Pep Boys?

Thanks for your assistance!
As long as it is H7 55 watt. U should replace in pair for matching the light output and pattern.

It is in the owner's manual page 487. I guess you do not have the manual.

Here is a copy of page 487.
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File Type: pdf HEADLIGHT.pdf (325.2 KB, 6802 views)

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#3 (permalink) Old 04-25-2010, 07:37 AM
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Originally Posted by AsianBlackR350 View Post
As long as it is H7 55 watt. U should replace in pair for matching the light output and pattern.

It is in the owner's manual page 487. I guess you do not have the manual.

Here is a copy of page 487.
Thanks! Seems pretty straight forward. Any snags that I might run into/tips you can provide? I will try and replace later today.

Thanks again!!
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#4 (permalink) Old 04-25-2010, 08:28 AM
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#5 (permalink) Old 04-25-2010, 09:01 AM
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Having problems. Can you replace bulb w/o removing headlight assembly? I can't see the socket because the access is from the side, do you do it blindly? Also, I have tired to turn the socket counterclockwise, but it is not moving and I can't get good leverage because 1) I can't see it and 2)angle of my hand. Do I turn just the plastic part, or the plastic and metal part?

Thanks!

Last edited by HeadhunterGL; 04-25-2010 at 09:31 AM.
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#6 (permalink) Old 04-25-2010, 09:15 AM
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Just turn the socket, i.e. the thing with wires attached. You can feel your way down the wires to the socket. I your hand will fit, the socket can be seen, but it might require a mirror or standing on your head or something.

No question this process draws blood and creates bruises--as on most cars.

Kent Christensen
Albuquerque
'07 GL320CDI
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#7 (permalink) Old 04-25-2010, 09:20 AM
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Quote:
Originally Posted by HeadhunterGL View Post
Having problems. Can you replace bulb w/o removing headlight assembly? I can't see the socket because the access is from the side, do you do it blindly? Also, I have tired to turn the socket counterclockwise, but it is not moving and I can't get good leverage because 1) I can't see it and 2)angle of my hand. Do I turn just the plastic part, or the plastic and metal part? Just don't want to break anything....

Thanks!
You do not need to remove the headlight assy.
Shine the light into the hole, you have to do it blindly (the plastic connector and metal clip which you will have to turn CCW. It is tough for the first time to remove it ( I did remove it when installed MTEC HID bulbs).

The metal clip is same as pic. in this post without the cut out. (the plastic and metal clip should come out together (2 separate pieces, clip is to hold the plastic connector to the housing of the light)

http://www.benzworld.org/forums/w251...on-pics-5.html

2008 R350 4 Matic w/P1 package/7 seater/Ipod/Front heated seats/ Retrofitted OEM GPS Navigation / 10.2" LCD Overhead Mobile Video system w/ 30 Sega Games, Wireless HeadPhone, hard wired to OEM HK sound system, B/U Camera integrated W/ 6 Disc DVD Changer , hard wired Passort Escort X8500, Mtec HID, 17 SMD LEDs city lights.

2007 Acura RL w/ tech package, A-spec body kit, Deck lid spoiler,TVandNAV2go,USA spec Audio, 18 " Wheels, Wooden steering wheel, Wooden shift knob

Last edited by AsianBlackR350; 04-25-2010 at 09:33 AM.
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#8 (permalink) Old 04-25-2010, 09:35 AM
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Originally Posted by AsianBlackR350 View Post
You do not need to remove the headlight assy.
Shine the light into the hole, you have to do it blindly (the metal clip* which you will have to turn CCW. It is tough for the first time to remove it ( I did remove it when installed MTEC HID bulbs).

The metal clip is same as pic. in this post without the cut out. (the plastic and metal clip should come out together (2 separate pieces, clip is to hold the plastic connector to the housing of the light)

http://www.benzworld.org/forums/w251...on-pics-5.html
I like your advise and it looks like u have a lot of experience!!

Can you replace the current headlight bulbs with MTEC HID bulbs. would it work without reprogramming or something? If it is that easy, it would be great.

Also park lamps-could u replace the original with HID bulbs?
What is the cost involved in each case? Appreciate your response.
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#9 (permalink) Old 04-25-2010, 09:35 AM
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After some patience and perseverance i was able to complete the replacement. Used a mirror to familiarize myself with the situation which was helpful. I had trouble with inserting the bulb/socket back into the housing - some of the wires kept getting in the way. Anyway - all is good. Thanks for the help guys.....
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#10 (permalink) Old 04-25-2010, 09:43 AM
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Quote:
Originally Posted by HeadhunterGL View Post
After some patience and perseverance i was able to complete the replacement. Used a mirror to familiarize myself with the situation which was helpful. I had trouble with inserting the bulb/socket back into the housing - some of the wires kept getting in the way. Anyway - all is good. Thanks for the help guys.....
Glad you did it.

2008 R350 4 Matic w/P1 package/7 seater/Ipod/Front heated seats/ Retrofitted OEM GPS Navigation / 10.2" LCD Overhead Mobile Video system w/ 30 Sega Games, Wireless HeadPhone, hard wired to OEM HK sound system, B/U Camera integrated W/ 6 Disc DVD Changer , hard wired Passort Escort X8500, Mtec HID, 17 SMD LEDs city lights.

2007 Acura RL w/ tech package, A-spec body kit, Deck lid spoiler,TVandNAV2go,USA spec Audio, 18 " Wheels, Wooden steering wheel, Wooden shift knob
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