Does anyone have any ideas what the problem might be? I posted this about 6 months ago and someone said it was more than likely a fuse #41. My car is a 2004 C230K, I checked every fuse in the entire car ( fuse boxes everywhere ) and not one fuse is bad or blown. Any ideas?

 

This is a guess, I am not sure but It might need to be reset.

 

here is a pic of the pressure relief valve for the rear headrests. not sure if this is for your car but it is a 203 chassis C class. LR in trunk by wheel well. does your switch work? did they work previously or have you had any work done on the car recently? they are released by vacuum. probably have a line off someplace or broken line....Y24/1 is the relaese valve designation in the picture.

[IMG]local://upfiles/20215/3F8F91B1345A4607AAB428C92B290422.jpg[/IMG]

 

Yes, the headrests worked fine, then one day they just stopped. Now the siren on my alarm is not sounding. all the lights flash, though.

All fuses check out okay. #8 and #9 in trunk, and #41... should I replace them all? Is there any relays or anything? Can you tell me where the relief valve is in the trunk? Also when Siren quit my switch for the alarm turn off has stopped so when you jack up car the alarm goes off, of course no sound though.

Could it be from cleaning engine compartment?