C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

08 C350 Running Light Issue - Help Please

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 05-29-2016, 09:58 AM
  #1  
Junior Member
Thread Starter
 
SG 08's Avatar
 
Join Date: Mar 2013
Location: NC & MI
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
2008 SG C350
08 C350 Running Light Issue - Help Please

I have an issue with my running lights, sorry kind of long but want to clearly outline my issue as I need help. I had one of the DS eye brow bulbs go out a couple months ago so I figured I would take the opportunity to change them all out for LED's to match my headlights. PS went fine - unplug, change, check, reinstall. I started on the DS and I changed the eye brow bulb that was working, no issue. Changed the next one that was out and nothing, no light. I changed the side marker light that was working and it is now out. I found the fuse layout online and given the descriptions are not very good I checked every fuse under the hood and in the trunk to ensure there were no issues. Broke out my test light and it seems to be a power issue to both sockets, ground seems fine. I pulled all of the relays out to check for corrosion but they all looked good. After I did that I flipped the light switch and now both eye brow lights are working and the side marker light with the old bulb. Swapped the old marker light out for the LED bulb and it is out again... I pulled the DS inner fender and headlight to see if I could see a wire issue but everything is well wrapped and I don't see any issues. My next focus is on the relays but I cannot find a layout or description of them any where. If someone has another idea or has the relay descriptions please let me know.

Thank you for your help!

Chris
Old 05-29-2016, 10:06 AM
  #2  
MBWorld Fanatic!
 
LILBENZ230's Avatar
 
Join Date: Jul 2008
Posts: 8,384
Received 795 Likes on 598 Posts
2019 G70 6MT & 2022 Ford Maverick XL
Are you sure the car isn't just cutting power to those sockets thinking the bulbs are out since you're sticking in LEDs?
Old 05-29-2016, 10:35 AM
  #3  
Junior Member
Thread Starter
 
SG 08's Avatar
 
Join Date: Mar 2013
Location: NC & MI
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
2008 SG C350
I am not sure, there are no dash messages. How would I reset or address this? I have the physical bulbs in the sockets. I also checked the LED bulb on my multimeter and the circuit seems to be fine.

I have been a Ford and GM guy so working on my wife's car is somewhat new to me.
Old 05-29-2016, 10:45 AM
  #4  
SPONSOR/MBworld Guru
 
AZN Optics's Avatar
 
Join Date: Jul 2010
Location: California
Posts: 6,936
Received 211 Likes on 202 Posts
MB W204/W212, BMW E66, Porsche 958, VW MK6 TDI, Maserati Ghibli SQ4
Have to reset the SAM by power cycling the vehicle. Lights off, turn engine on, then off, then turn lights back on.
Old 05-29-2016, 12:38 PM
  #5  
Junior Member
Thread Starter
 
SG 08's Avatar
 
Join Date: Mar 2013
Location: NC & MI
Posts: 22
Likes: 0
Received 0 Likes on 0 Posts
2008 SG C350
Followed your process and (3) LED bulbs later everything is working!

Thank you very much!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: 08 C350 Running Light Issue - Help Please



All times are GMT -4. The time now is 07:03 PM.