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I have a 2015 E350 and the right front turn signal that is integrated with the headlight assembly either comes on part way (some LED light up) or not on at all. The warning message comes on. My question. What is the most likely cause? How do your replace the turn signal LED light string that is in the headlight?
first put the headlight on a furnace with 180 degree make sure you remove all 3 blots and all metallic pieces after that disassemble the lights and replace the turn light i had the same issue but on my w212 after that make sure that you assemble the headlight with high quality silicone without acid this is the led signal
I mean, that depends on exactly how good you are working with this stuff. Sure you potentially dissect the entire assembly and maybe be able to repair this unit, but maybe not. The diodes are not serviceable.
Good news it that you should be able to pick up one used online or potentially even a new one at a discount - they are manufactured by Hella for Mercedes, so if you see a Hella branded one that is the same as OEM*
*potentially it will not say "Mercedes-Benz" inside the light.
I mean, that depends on exactly how good you are working with this stuff. Sure you potentially dissect the entire assembly and maybe be able to repair this unit, but maybe not. The diodes are not serviceable.
Good news it that you should be able to pick up one used online or potentially even a new one at a discount - they are manufactured by Hella for Mercedes, so if you see a Hella branded one that is the same as OEM*
*potentially it will not say "Mercedes-Benz" inside the light.
Thanks this is very helpful. I was hoping not to have to take the bumper off but not so lucky. I am going to take it to MB to confirm it is the headlight and not the controller module. I will update the post when I find out.
UPDATE: brought the car to MB they pulled error codes B223900, B285711, B285811, B286011. Which is error for each of the lights. The blinker and parking light is out. I know i have moisture and that will have to be fixed (thanks LLIBENZ230), but I am think that maybe it is just a module given all the light error codes.
Question for Konigstiger: which module would throw those error codes 2228700789 or 2189007306?
UPDATE: brought the car to MB they pulled error codes B223900, B285711, B285811, B286011. Which is error for each of the lights. The blinker and parking light is out. I know i have moisture and that will have to be fixed (thanks LLIBENZ230), but I am think that maybe it is just a module given all the light error codes. Question for Konigstiger: which module would throw those error codes 2228700789 or 2189007306?
which module would throw those error codes 2228700789 or 2189007306?
Leaning towards control unit 2189007306, MB should have suggested repair solution along with providing codes. If replaced, may require initial startup using Xentry (MB diagnostics).
Leaning towards control unit 2189007306, MB should have suggested repair solution along with providing codes. If replaced, may require initial startup using Xentry (MB diagnostics).
MB would only give me a $900 to replace the light control module but refused to give me the part number.
04-05-2020, 04:30 PM
