Eyebrow LED problem...
Thread Starter
Newbie
Joined: Sep 2010
Posts: 5
Likes: 0
W204
Eyebrow LED problem...
Well I successfully replaced 3 of the 4 LEDs that are required to match the eyebrows to my HIDs. However, the closest LED to the grill on the passenger side won't turn on. I have checked to see if there is power coming to the leads and there is, BUT if I plug in any of the old bulbs that I know are working it still does not turn on so the LED (I'm assuming) is fine. I have tried flipping the leads etc... All I could think of now is that when I pulled the lead out I accidentally damaged the wires since they are so freaking short. This will be a PITA to fix but before I dive into that, I want to make sure I'm not missing something else such as possibly burning a fuse. I know this is highly unlikely since the other LEDs work like a charm. Any suggestions??
Thanks!
Thanks!
Thread Starter
Newbie
Joined: Sep 2010
Posts: 5
Likes: 0
W204
Keep'em coming guys. Thanks!
SPONSOR/MBworld Guru
Joined: Jul 2010
Posts: 6,936
Likes: 215
From: California
MB W204/W212, BMW E66, Porsche 958, VW MK6 TDI, Maserati Ghibli SQ4
If you plug in the LED in the wrong polarity too long, car computer will register it as a burned out bulb and cut power to the socket (as there's no need to shoot power to a dead bulb). This is the same for all sockets with the feedback loop. By starting the car up a couple times with the light plugged in correctly, your car will reset and check to see if a bulb has been replaced and feed power back in. This might be what happened to you.
MBWorld Fanatic!
Joined: Dec 2009
Posts: 1,464
Likes: 73
From: Midwest, US
'17 GTR, '17 GLC43, '14 Panigale 899, '20 V4
If you plug in the LED in the wrong polarity too long, car computer will register it as a burned out bulb and cut power to the socket (as there's no need to shoot power to a dead bulb). This is the same for all sockets with the feedback loop. By starting the car up a couple times with the light plugged in correctly, your car will reset and check to see if a bulb has been replaced and feed power back in. This might be what happened to you.
Thread Starter
Newbie
Joined: Sep 2010
Posts: 5
Likes: 0
W204
If you plug in the LED in the wrong polarity too long, car computer will register it as a burned out bulb and cut power to the socket (as there's no need to shoot power to a dead bulb). This is the same for all sockets with the feedback loop. By starting the car up a couple times with the light plugged in correctly, your car will reset and check to see if a bulb has been replaced and feed power back in. This might be what happened to you.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Mercedes Teases Updated EQS With Steer-By-Wire and a Yoke
Verdad Gallardo
