I have a 2000 S500 and when I pushed down both rear lighters they did not pop back up with the engine on. I then pryed them out took a multimeter and found good ground but no 12v on either. THe strange thing is the fuses one for each lighter are good and hte other things on the same circuit work. Any suggestions as to why the lighters are inop. They are on totally seperate fuses.

 

power supply goes directly to the door control module.

both of them cannot be defective at the same time on the same reason.

i see many defective heating element (the one that you pop-in and pops out when hot). try it on the front ashtray and vice versa if it works.