StillNDADIRT

The other day a guy tapped on my window to tell me my brake light weren't working, sure enough they aren't. All other lights work including tail lights, just no brake lights. Not even third brake lights. What could it be? Stop switch?

StillNDADIRT

Is there a fuse or relay for the brake lights?

samaritrey

Could be the brake light sensor it is like $15 and takes 10 minutes to install very common issue on early w203's
http://www.rmeuropean.com/Part-Numbe..._6491752E.aspx

StillNDADIRT

Thank you. Does that go under the brake pedal?

LILBENZ230

Yes. Are you not getting warnings on the dash?

2KC230KS

Hi, mine has ESP/BAS set on dash and I have no brake lights. I reset the fail and tapped the brake pedal and ESP/BAS set again. Though mine is a W202 I suspect there not much different.

I am having trouble removing the OBD II connector from the "insulation cover". Any tips ? I have already removed the two mounting screws.

StillNDADIRT

Yea I had a brake warning but assumed the pads were worn or something

2KC230KS

Tried to find a new switch in town. No luck. Removed switch; sprayed thoroughly with electronic circuit cleaner blew dry with compressed air. Reinstalled: ESP/BAS cleared. Good fix.

Thanks for the info/help.

samaritrey

I would order one anyway and have it waiting for when it dies again.

BrocktheDoc

ok to follow up on this thread, my W203's right brake light is out and I changed the bulb, havent been able to check the fuse. I do have warnings on the dash but the real tricky part is that this only really started when one of my buddies slammed the trunk really hard like a freakin idiot the other day............

Any ideas??

BrocktheDoc

And its only the right side of the car that is doing this, the left is fine, so would it be the switch if its only one side??

samaritrey

do any of the ligths work on the right side? Check the connector that goes to the light could have come loose also switch the bulb from the other side to see if the bulb is just bad.

BrocktheDoc

Yes all the the lights work on the right side its just the brake light for some reason I will go and switch out the new bulb on the right to left to see if that does anything, Ill keep you posted

contact148

I bought a brand new bulb and it would not work so it may be a faulty bulb your swap idea is a good one

BrocktheDoc

Just did the swap an you guys were right, it was a faulty bulb out of the new package I just bought. Haha how does thaf happen, now I dont have to dodge the Honolulu PD so much. Thanks for the suggestion. And since I was in such good spirits, now that my brake light is working again, I went on ECS tunning and bought some drop in K&N high flower drop in boxes as well. Did the same thing in the mainland with my Audi A4. Cant wait till they get here.

Thanks again, these forums really help!

StillNDADIRT

I put the new brake light switch in and it fixed the brake lights. Thanks guys