LED Tailight Brake Light Out
09-05-2016, 03:16 AM
#1
Senior Member
Thread Starter
Join Date: Nov 2014
Location: Toronto & California
Posts: 496
Received 196 Likes
on
111 Posts
2015 ML400 4MATIC, 2014 E350 4MATIC, 2006 E350
LED Tailight Brake Light Out
Why????????? Hi! Have a 2010 ML350 with the led Tailights and one is out for the brake light and one has some dead leds has anyone gone to the dealer and received new ones because there defective? Pain. Why did they do this 
I've been told that it isn't covered under warranty. But still. Should be covered under goodwill of some sort. It's a well known problem
I've been told that it isn't covered under warranty. But still. Should be covered under goodwill of some sort. It's a well known problem
09-09-2016, 11:14 PM
#3
Newbie
Join Date: Sep 2016
Location: San Diego, CA
Posts: 8
Likes: 0
Received 1 Like
on
1 Post
2009 ML63, 2009 E350
There is a by now well-known brake-light fault on 164 MLs. (I know its only well-known after it happens to you) One 12v wire goes through the lamp and is grounded only through the reflector socket housing. The fix is MB part 1648260007 ( about 15 bucks ) this part with instructions adds a ground wire from the socket directly to the wiring loom. Before when I replaced the bulb (which still looked and was good), corrosion on the socket was scraped-off only to build-up again and give a brake light fault. Supposedly, Mercedes was fixing this for free but you can do it yourself in 15min and not have to argue and leave your car all day. Hope this helps.
The following users liked this post:
Sherhart (08-21-2023)
09-09-2016, 11:18 PM
#4
Senior Member
Thread Starter
Join Date: Nov 2014
Location: Toronto & California
Posts: 496
Received 196 Likes
on
111 Posts
2015 ML400 4MATIC, 2014 E350 4MATIC, 2006 E350
There is a by now well-known brake-light fault on 164 MLs. (I know its only well-known after it happens to you) One 12v wire goes through the lamp and is grounded only through the reflector socket housing. The fix is MB part 1648260007 ( about 15 bucks ) this part with instructions adds a ground wire from the socket directly to the wiring loom. Before when I replaced the bulb (which still looked and was good), corrosion on the socket was scraped-off only to build-up again and give a brake light fault. Supposedly, Mercedes was fixing this for free but you can do it yourself in 15min and not have to argue and leave your car all day. Hope this helps.
09-09-2016, 11:54 PM
#5
Senior Member
There is a by now well-known brake-light fault on 164 MLs. (I know its only well-known after it happens to you) One 12v wire goes through the lamp and is grounded only through the reflector socket housing. The fix is MB part 1648260007 ( about 15 bucks ) this part with instructions adds a ground wire from the socket directly to the wiring loom. Before when I replaced the bulb (which still looked and was good)t, corrosion on the socket was scraped-off only to build-up again and give a brake light fault. Supposedly, Mercedes was fixing this for free but you can do it yourself in 15min and not have to argue and leave your car all day. Hope this helps.
09-10-2016, 12:25 AM
#6
Newbie
Join Date: Sep 2016
Location: San Diego, CA
Posts: 8
Likes: 0
Received 1 Like
on
1 Post
2009 ML63, 2009 E350
Sorry, I don't have LED. So a Mercedes LED brake light doesn't plug into the same 7506 type socket as an incandescent? I guess that's just for a retrofit LED conversion?
