joshg1001

After exactly 5 years of ownership today, my C350 with bi-xenons experienced the famous german electrical gremlins.

I came out of my parking garage in broad daylight, so the headlights were on from being inside. As I was pulling out, I thought my eyes were playing tricks on me when I saw the green headlight symbol in the instrument cluster cycle on and off (as well as the white glow of the instrument cluster). Of course, I was moving at the time so my attention was not on whether the headlights were on. I let it go, but tonight as I was turning the car off, the headlights instantly turned off as they should, but then the eyebrows and the interior lights started cycling on and off as well.

Great, so I am out of warranty and am about to go in for a service A. Cant wait to hear how much this will cost. I did find some similar cases, and people say the SAM needed to be updated, or a faulty light sensor.

Any updates on the situation from similar experiences would be really helpful

Carsy

Saw a similar experience on this website in the past fortnight.https://mbworld.org/forums/c-class-w...sh-lights.html

Can you leave your headlights on 'manual off ' until the fault is found.?

snowmuch

Let me know how it goes. Im having problem with my bi xenon as well.

Bunkx9

Buy a new light switch assembly and replace the old one. It's easy to do. I had the same problem on my 2009 C300.

Bunkx9

http://www.mbonlineparts.com/parts/2...dlamp%20switch

This is the part you need.

joshg1001

Thanks much. It hasn't happened since but I will keep your suggestion in mind when it's time

Frnakito71

Yeah last night my 08 when I was walking up to it the parking lights or the fogs did not turn on like they usualy did when you unlock the doors, could that be the light switch?

W204white2010

The light switch seems to go out quite often. I just had my 2010 c300 light switch replaced at 40,000 miles. The passenger side parking lights, front and back would stay on even after I set the switch at 0. It drained my battery when I didn't drive the w204 for 4 days. Luckily, MB-roadside replaced the battery under warranty.