Hussain Madani

LED DRL right side is not working
Hi guys! The LED DRL on the right hand side on w205 2015 C300 stopped working 2 days after it rained. I got some water drops/fog inside the headlight which made the DRL flicker and the turn signal stopped working. A day after the turn signal is working fine and when I start the car the DRL blue light come on For a couple of seconds but the white never comes on. So at this point it seems that everything in the headlight is working except the white LED DRL. After reading and researching, it seems to me that it’s a controller issue and hopefully a controller replacement will fix it, but there’s 3 controllers on the headlight and I’m not sure which one I should get.

I tried finding a phone number for Otto auto but didn’t find one so I emailed them twice but no reply..

does any one here knows which controller I should get? Or if it’s actually a controller issue?

thank you!!

chrisdean

You should really use the search feature to find your answers first but anyway, look here.https://mbworld.org/forums/c-class-w...w205-c180.html

darwin329

hey buddy i have w205 2015 model. My headlight day light is not working during the day i wonder if its normal? It only turns ON when its getting darker... is that normal for 2015 w205

Elvisfan0108

if you are talking about the daytime running light, if both are not working, check your settings. In the US you can usually turn them off.

kener22

Any update on this situation I’ll appreciate any information thank you

W205C43PFL

Similar issue by chance? https://mbworld.org/forums/c-class-w...ght-led-2.html

Cosworth2000

In Canada you can not turn of the DRL as it's the law for some time that DRL must be active during the day.

For me, I have no errors in my Left Light module however at night I have noticed that my left side only has 1 light on and on the other side - right side - I have 2 lights on the right.

Anyone noticed this? When I test the high beam, they works perfectly. When I check and test the movement of the lights, it works perfectly and lights of the blind spot.

W205C43PFL

Hmmm never heard of that, I guess no codes right. Try playing around with the light switch (although I am pretty sure you already did)

Cosworth2000

Yeah I played around with the light switch and that did nothing except make the back lights turn on the fog settings.

I was not able to turn off the lights during the night time as they stay own unless you are in park for a few minutes then they will turn off,

I scanned the module and the temperature looks good, the fan is working, there are no codes for the light being out. It looks kinda weird that 1 light is out on the driver side. I may have to look closer since I have the Multibeam lights and they should not be any maintenance.

W205C43PFL

Hmmm head scratcher for sure, MBs are usually pretty sensitive with the lights, voltage, brightness etc, if there is something wrong it will show check rear beam, front beam, those types of messages and will always have a stored code, I am surprised your car didn't have that if a light is not working properly. I assume you checked the control modules as well right? Pretty sure you did, if I do figure something out to try I will update you on the thread. By the way control module is located here: https://mbworld.org/forums/c-class-w...light-mod.html

Cosworth2000

Okay, I just found this in the Service part of the Autodata.

W205C43PFL

but.... your car has LED non Xeon.

Cosworth2000

I think so, but I need to find some information about it.
When I get it ??? I will see what I can do and write it here.

W205C43PFL

I see, good luck. Hopefully it is just a software glitch, I don't think this will work but doesn't hurt to try have you unplugged the 12V battery for 10 or 20 or 30 minutes, checked the aux battery's condition and see if it just resets itself?

W205C43PFL

Any update?