Merzman

I'm getting an intermittent front passenger side turn signal. Rear works fine. Bulb looks good as do the connections from the harness to the bulb. Computer says its bulb. Anyone know where the wire come out of the harness at the other end to check continuity? Thanks!

SchwarzerGeist

I have been troubleshooting a similar problem. My wrench says its a problem with the headlight assembly and we are attempting to bypass so that the computer gets the correct resistance so the warning message does not keep comming up. I have a similar problem with the driver side mirror signal, haven't got that one figured out yet.

blue e

I too have a similar problem that is driving me bananas!

I hava a 2002 Cl55 and as the weather started to warm up I would get a "lamp out" warning indicating the left front turn signal. I checked and all bulbs were in working order.
I proceeded to change the left front & left rear turn sigmal bulbs anyway and still have the same issue.
The problem would sometimes go away, but now that its in the 80's in NYC its always present.

Lastly, I noticed today that my LED signal on my driver's mirror doesn't work anymore. Any help or fix would be greatly appreciated

Merzman

I can't see that it would be the headlight assy. The turn light has its own fixture and ground. I checked the hot into the turn signal fixture and there is no current, so the issue is somewhere up the wire. There has to be a relay somewhere that flashes the lights, and my guess is that it has a loose connection there, since the other lights work.

Merzman

This poseted elsewhere for simlar problem
"I talked to a MB mechanic today about this problem and he said he would bet it's a bad hazard switch (the actual red triangular switch in the dash), as it's a common fault in MBs and he replaces 100s of them each year. -Rob"

blue e

UPDATE:

I replaced the turn signal indicator located in the mirror housing. Problem solved!