My drivers side headrest which is power operated now no longer moves with the press of teh button. It worked fine before and symptoms were intermitten operation then it just stopped. Now everytime I press the button, All i hear is a faint "click" and thats all. Is it stuck or is it broke for good?> I would appreciate your feedback. Thanks

I had same problem on my 380SE. I took seat back off but everything looked fine. I then reached under the seat and moved around the wiring and lo and behold the headrest started worikng fine. Occasionally it still will balk but usually I just put slight pressure on it and it goes up or down. Not a very technical soluation I know but sometimes just moving things around seems to help.

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95 E420 ( 76K) SOLD
85 380SE(125k)
95 SL500(72k)

Make year model? Assuming SL?

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car

This seems to be a frequent problem, usually results from people manually pulling the headrests up and down. Usually, the gear on the motor has just been pulled off track, which is why you still hear it running with no results.

Fairly easy fix, did it on mine by taking off the back seat covers and reseating/resecuring the gear.

I saw a DIY article somewhere on this problem once, maybe on Rik Johnson's site, but I can't really remember. Perhaps someone who knows could post the link.

John

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1995 E320 119,000 miles

Its a 560SEL. Funny thing is that I had it all the way in the UP position. I tired moving wires around under the seat and I also tried jiggling the headrest lightly and I still get nothing. Btw, I even removed the headrest and then put it back into place and still the same and i just hear a "click"

Do a search on "headrests"...

...if your mechanism is similar to that of the W124 series, there is a $18 part that you can replace that will fix this issue.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car

I had the same problem with my E-320 headrest. It turned out that the motor electrical contact is not good. If you take off the seat's back, wiggle your motor around until you can get use the switch to move it up and down (get someone to help with the switching). I used electrical tape to force the contact. I've been working fine for two years now.
There may also be a plastic piece that hold the headrest gear being broken, you can use a couple of tie wrap to hold it in its place.

Good luck
JeffreyP