Edmundo

Hi everyone,

I have purchased the DEPO clear side markers and changed them today.
Unfortunately I did not check if the lights were working on my markers but now the left one doesn't work.
I swapped a few bulbs, the chrome coated one that came with the new clear side markers, and the 2 original ones but none of them will turn on.

I saw on the fuse mapping (from the toolbox - damn took me some time to find this one) that there's only 1 fuse that controls these bumper lights, num 13, so the problem shouldn't be fuze related because the right marker light is working fine.

I removed the mud pad again, played with the wirings , moved them around, removed the connectors from the socket and checked all the "visible" wiring but did not see any damage. The same wire is taped to the xenon fog light but I am sure I did not stretch the wires or anything like that.

Does anyone have any pointers? maybe another fuse controlling individual lights? or computer reset as I read from one of the old threads over here?

Any help would be appreciated

Thank you!

tanktube67

Are you getting a message on the cluster display?

Edmundo

Yep

tanktube67

Remove the right side bulb and place it on the left side it will take no longer than five minutes to do the swap.

Edmundo

It is actually a bad bulb.. I wasnt cycling the ignition when testing the others before.
Thanks tanktube.

tanktube67

And by the way welcome to MBW

Edmundo

Thanks

BlackjackM

This post helped me today, couldn't for the life of me figure out why one side was out and replacing the bulb didnt help. One I cycled the ignition it worked. The computer must sense the blown bulb and cut off power to that circuit until you replace the bulb and cycle the ignition.

okay.w0w

bump im having the same problem. what do you guys mean by cycling the ignition?

C300S 6MT

I think they mean turn the ignition key on and off. Cycle from 0 to II and vice versa.

dgghostkilla

can you post a link to buy those side markers and picture of how it looks please?

wszypszak

On my 2008 C300 4matic Sport the front amber side marker light, passenger side, apparently lost a screw (?) and the top is coming out of the hole in the bumper cover. The light is working fine, I just need to get the "fixture" back in the hole. The owners manual says it is a complex job and is best left to a MB dealer. Can anyone help me with how to get it installed correctly? I don't want to mortgage my house by going to a Mercedes dealer unnecessarily. The whole lens, bulb, connector, and black backer piece just come right out if you wiggle it. The gray piece has 2 hooks and a snap claw (?) but I can not get it to click into the bumper opening properly. The black piece has a small screw hole that apparently holds the two pieces together, but if I put a screw in and close it up, I cannot get it back into the opening- it is so close yet so far away. The OEM screw is gone- vanished. Any and all advice is welcome. Seems to be a poor design if you have to dismantle the front end to change a stinking light bulb.

Springy0314

I switched my side marker lights out for white ones with leds. My driver side one won't turn on. I've tried doing a 180 with the connection and it didnt work. I was careful not to pull on any of the wires but I can't figure out why its not lighting up. Could it be a fuse?

I do get a message about checking it but I'm still stuck.

Thanks in advance!!!!

-S

Twakk

I have the same problem, were you able to find a solution to your problem? I bought a pair of LED front side marker lights for my 2010 C300 4Matic W204 Mercedes and my LED's for my driver side go out to, and the computer in the dash says I have to change it too.

jahknowsme

After reading about the same issue with the side marker bulbs that several owners have experienced with the Mercedes I think its time to get Congress involved. It has been an ongoing problem that has not been addressed.
In my case, with an E 350, I had the left side marker bulb replaced at the dealer. After a couple months the same bulb went out, I took it back to the dealer (Old Country) Hartford, CT They now suggested that I replace the socket that houses the bulb, that was a $200.00 job so I approved it. Now about 8 weeks later the same bulb went out so i returned to (Old Country) the dealership, The service writer now tells me that there is probably a crack in the amber lens and therfore the bulb was blown. My reply to her was " a bunch of balonaga" I pointed out to her had that been the case why did the advise me to replace the bulb socket on the previous visit @ $200.00 cost.
At that point I just gave up and have living without my left side marker lamp. I stopped in to speak to Service Manager but he was not on premi sis at the time but now that I've seen that so many of you have been havin the sme problem I will be at that Dealership bright and early on Monday. Thank you guys for the postings.

Oldfools

Thank you to all that shared the knowledge. My Cancer surviving husband (9 years) Mechanic many years ago was able to change out that bulb for the marker with the instructions. And the kicker to the post is recycle the ignition to reset instructions to bulb. Works lke a charm. I so very much Thank you from the Oldfools

rcsimo00

TeejR

First of all, thank you MBWorld! I recently purchased my first ever MB and have already visited this forum numerous times to seek information and gain knowledge. It's brilliant. Thank you.
I was also having this front left marker light issue. Changed the bulb just yesterday (went in through the plastic panel in front of the wheel by removing two 10mm screws then sticking my arm up through the gap!) and it still didn't work. Very annoying. I'm going to do it again today and cycle the ignition. I just learnt that expression this morning
Thanks to taktube67 and Edmundo. I'll let you know how I get on.

Cheers all! Teej

Burf

I went through the same grief before I worked it out (or rather, found this thread). There must be some Teutonic logic to having to do this but it escapes me for the moment.

Nick Nikolas

How u cycle the ignition i changed the bulbs on my 2012 c300 4matic to leds and it gives me the message to check them for both sides. So how do i cycle the ignition

bebepr1521

Just move the key on position one , two and the same process back and forward few times that what they mean whit cycle the ignition