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Right hand side DRL/ Parking light fault on W205 C180

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Old Feb 27, 2020 | 07:24 AM
  #1  
Rom1969's Avatar
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MB C180 (W205) Year 2014
Right hand side DRL/ Parking light fault on W205 C180

Hello, need help on daytime running light fault DRL on MB W205 car C180 2014 yr.
The RHS DRL stopped working. Thought it was the DRL led module.
I swapped it with the LHS and it worked on the left. So the issue is not the DRL module.
I checked all voltages on connectors on both sides and they all give the same values.
The dashboard indicates either daytime running light DRL or parking light fault as it uses the same led tube.
Thank you to advise on possible causes.
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Old Mar 10, 2020 | 10:22 PM
  #2  
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MB C180 (W205) Year 2014
Originally Posted by Rom1969
Hello, need help on daytime running light fault DRL on MB W205 car C180 2014 yr.
The RHS DRL stopped working. Thought it was the DRL led module.
I swapped it with the LHS and it worked on the left. So the issue is not the DRL module.
I checked all voltages on connectors on both sides and they all give the same values.
The dashboard indicates either daytime running light DRL or parking light fault as it uses the same led tube.
Thank you to advise on possible causes.
Hello I eventually figured out that the problem was with a defective led headlight module (circuit board enclosed in a heatsink casing) for the right hand side headlight. In fact the day running light/parking light (led eye) connects to this module.
After changing this module, the led light was restored. Also, you need to remove the front bumper to access this module.
I had to do it at the MB concessionaire.
Hope this can assist those with similar issues.
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Old Apr 19, 2020 | 05:04 AM
  #3  
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W205 C200 AMG Line Premium
Which module turned out to be faulty, the small one with the tiny led's connecting to the light tube or the large rectangular unit underneath?
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Old Apr 19, 2020 | 05:15 AM
  #4  
Rom1969's Avatar
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MB C180 (W205) Year 2014
Originally Posted by chrisdean
Which module turned out to be faulty, the small one with the tiny led's connecting to the light tube or the large rectangular unit underneath?
It was the rectangular unit underneath see photos of defective module below

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Old Apr 19, 2020 | 10:59 AM
  #5  
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W205 C200 AMG Line Premium
Thanks, very usefull
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Old Apr 10, 2021 | 06:42 PM
  #6  
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w205 c400 c63s
Originally Posted by Rom1969
Hello, need help on daytime running light fault DRL on MB W205 car C180 2014 yr.
The RHS DRL stopped working. Thought it was the DRL led module.
I swapped it with the LHS and it worked on the left. So the issue is not the DRL module.
I checked all voltages on connectors on both sides and they all give the same values.
The dashboard indicates either daytime running light DRL or parking light fault as it uses the same led tube.
Thank you to advise on possible causes.

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
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Old Aug 9, 2021 | 05:22 PM
  #7  
Akbar Sarwar's Avatar
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W205
Originally Posted by Rom1969
It was the rectangular unit underneath see photos of defective module below

Hi was this a straight swap for the new module or did you have to programe the new module? I have the exact same issue which just came about this week. Thanks
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Old Jun 22, 2022 | 06:54 AM
  #8  
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C63 AMG
Bump

Also want to know did you have to change the module and program it from Merc?
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Originally Posted by 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
if you have turned the headlight switch on and the headlights don’t work, but they work on auto, the switch may be bad.
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Old Mar 21, 2024 | 08:00 AM
  #10  
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C350E
Question Were there any error codes for this issue?

Hi
I have the same problem as the original post with dashboard error saying 'Left Daytime Driving Lamp' and 'Front Left Parking Lamp' warning messages

I get two error messages from a home diagnostics tools.
  1. The output for the standing light has a malfunction. There is a short to ground.
  2. Communication with the control module 'Multifunction Camera' has a malfunction.
I also swapped the LED lighting units between LHS and RHS, the LHS unit worked fine when plugged into the RHS. The RHS unit did not work when plugged into the LHS, suggesting the LED units are fine.
So thoughts are now turning to the headlight module as per your experience.

Before I replace this unit though, did you run any diagnostics codes when you had the error?
Just wondering if my 'Short To Ground' error code would occur if 'led headlight module (circuit board enclosed in a heatsink casing) was also at fault in this case?

Thanks in advance.

Pete
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Old Oct 4, 2024 | 02:57 PM
  #11  
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Many thanks

Originally Posted by Rom1969
Hello I eventually figured out that the problem was with a defective led headlight module (circuit board enclosed in a heatsink casing) for the right hand side headlight. In fact the day running light/parking light (led eye) connects to this module.
After changing this module, the led light was restored. Also, you need to remove the front bumper to access this module.
I had to do it at the MB concessionaire.
Hope this can assist those with similar issues.
I had the same problem i was about to get crazy i even buy new led part from MB dealer who coste me 275 euro and it does not work and after i call few mechanics freinds they say that they really never seen led burn in Mercedes w205 model only Headlight control module and tou just confirm that for me man i really appreciate it So my Mercedes C200D w205 2016 problem i have is that The DRL not working in right side i get the message in dashboard and Headlight low beam and high beam works perfectly fin only the DRL so first thing come in my minde is the Led is faulty so o decided to replace it and then nothing work so after reading and checking around im postive that mean headlight Module that comes in bottom of the Headlight is the faulty one its coste new from MB dealer 306 Euro with no guarantee if you have to fixe it in particular mechanic not in dealer . I fond this quite expansive and im hoping you guys give me an alternative aftermarket brand that with high quality and warranty so i can make purchases with reasonable price . Many thanks again hope my statement help you diagnose ur problme .
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