2009 C300 Sport with approximately 65,000 miles.

The car is experiencing two very odd lighting issues that I'm hoping someone can please help me diagnose.

The first issue is some of the dash lights / indicators blink on/off while the car is on. I've made a 20 second video showing the problem here.

The second issue is about half of the time I shut the car off, remove the key, and leave the lights set to off mode (O), the passenger's side of the car's eyelid and tail lid lights stay on.

Let me know if I can provide any additional information. I am definitely not a car guy, so I'm sure my post is missing important details.

Thanks in advance.

 

Have you checked all the fuses?

 

When you shot that video did you happen to be going through a tunnel or in an area where it was very bright then very shady or dark? If so, it might have been teh automatic lighting.

As for the second issue, do the lights everntually go off on their own? If so, that is normal as well.

 

Common issue on W204 - from what I understand if you replace the headlight switch in the cabin it typically corrects the issue. Mine does this randomly, it's been a minute since it has happened last (lights flicking on and off during the day) and one side parking lamps getting stuck on when car is off. When they start flicking on and off randomly turning the headlight switch to off will stop it.