M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Hid lights up out if housing but not when installed in housing

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Old Apr 16, 2018 | 03:27 PM
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04 ml500
Hid lights up out if housing but not when installed in housing

First hello, been long time lurker but never posted

Had to replace a hid bulb on my 2004 ml500.

install was easy, could hear the igniter trying....no light....messed around a bit and when I tried to light the build outside the housing to make sure it was good....it light up fine.

when you put and ignighted bulb in the headlight it shuts off, when you pull it out lights up just fine.
have installed 2 bulbs one Phillip's from the drivers side and one aftermarket.....

have had it hooked up to the computer and cleared all faults etc

Any ideas appreciated....lurked for a long time but never signed up
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Old Apr 19, 2018 | 10:20 AM
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04 ml500
Anyone
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Old Apr 20, 2018 | 05:33 AM
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2002 ML 320 & 2006 ML500
What side has the bulb blown on, driver's or passenger?

High beam or low beam?

Why are you using two different bulbs, which is a no no?

Which bulb is not working properly, the Phillips or aftermarket?

Have you swapped the problem bulb from one side to the other to see if the problem still occurs?
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Old Apr 20, 2018 | 08:35 AM
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04 ml500
Passenger side is one that blew out.

bought aftermarket bulbs....

have swapped bulbs out side to side.....Phillip's orig and aftermarket all fire up fine outside of housing

bulb Ignights when out if housing

it's as if there is a grounding issue but.....

inside the bulb cover it says please read owners manual before changing bulbs....
but I only have those flip books no actual manual.
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Old Apr 20, 2018 | 09:03 AM
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2002 ML 320 & 2006 ML500
Fill in the blanks and read your owner's manual.

https://www.mbusa.com/mercedes/servi...owners_manuals
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Old Apr 20, 2018 | 09:28 AM
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04 ml500
Sorry hit reply too fast, should have said when I looked it up in the manual just days, his is high voltage let professional change it....sooo.....
technically have brought too my shop and they cant figure it out
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Old Apr 20, 2018 | 03:17 PM
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Remove the good headlamp and plug in the problem bulb and harness into it.
Attached Files
File Type: pdf
R&I Headlamp.pdf (33.4 KB, 179 views)
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