Headlight trouble
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Newbie
Joined: May 2021
Posts: 14
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2017 e300 4matic
Headlight trouble
2017 E300
last Friday I replaced my right side headlight and module due to water damage. A buddy of mines owns a shop and sold me a used headlight that came with a used module for a good price. He cleaned the pigtail, cleared all the “ Inoperable low beam, high beam, ect” messages and to my surprise the headlight worked . Worked for a few days then I was driving it last night and everything was good till this morning when I started it up I seen my light is off
again and I have about 6 messages saying “right” side lamp features inoperable.I removed the bumper and the headlight and plugged it in on the left side and the headlight came on and it works good so it’s not the headlight itself. Maybe a wire? Pigtail messed up on right side ? So I bought a new pigtail cover and cleaned the wires then plugged it back on the right side but it still didn’t work. Anyone have any idea what it could be? How come it works on the Left side but not the right? It seems as if there’s no power on the right side. Really bummed since it hasn’t even been a week since I
fixed it. Is not receiving power? Could it be due to it being a used module? a bad wire? A fuse? Programming/ Coding?
I don’t have the splash shield/ fender liner that’s how I got water damage in the first place but I haven’t drove on water since I fixed it.
last Friday I replaced my right side headlight and module due to water damage. A buddy of mines owns a shop and sold me a used headlight that came with a used module for a good price. He cleaned the pigtail, cleared all the “ Inoperable low beam, high beam, ect” messages and to my surprise the headlight worked . Worked for a few days then I was driving it last night and everything was good till this morning when I started it up I seen my light is off
again and I have about 6 messages saying “right” side lamp features inoperable.I removed the bumper and the headlight and plugged it in on the left side and the headlight came on and it works good so it’s not the headlight itself. Maybe a wire? Pigtail messed up on right side ? So I bought a new pigtail cover and cleaned the wires then plugged it back on the right side but it still didn’t work. Anyone have any idea what it could be? How come it works on the Left side but not the right? It seems as if there’s no power on the right side. Really bummed since it hasn’t even been a week since I
fixed it. Is not receiving power? Could it be due to it being a used module? a bad wire? A fuse? Programming/ Coding?
I don’t have the splash shield/ fender liner that’s how I got water damage in the first place but I haven’t drove on water since I fixed it.
Last edited by Edgardo Aguilar; Feb 20, 2023 at 03:57 AM.
Super Member
Joined: Sep 2012
Posts: 558
Likes: 152
From: New York City
2021 e All Terrain, 2001 e55
I hit a deer and damaged my front end. MB replaced the headlight but the old one worked so I kept it. My car is a 2021, i do not know if it will fit your car but if it will you can PM me
Thread Starter
Newbie
Joined: May 2021
Posts: 14
Likes: 0
2017 e300 4matic
thank you for your responses
