Whats up with em? Every merc I've had with the adjustable ones. Never work... How hard are they to Actually get working?

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

How do you mean? The electric ones?

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car

I dunno. Every 124 I've sat in so far the Head rests never work with the button

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

Mine move slightly forward or back...

You mean to tell me they're supposed to do something else? Up would be great...

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1982 240D, sold 9/17/2008
1987 300D TurboW124.133 - 603.960, 722.317 - Smoke Silver Metallic / Medium Red (702/177), acquired 8/15/2009
262,715 and counting

On my 300E, the passenger seat head rest does not work at all (i.e. no noise from the motor at all). The driver's headrest motor works and will raise the head rest if it starts at the very bottom, but will not go back down unless physically pushed down. (Maybe a track or gear issue with motor?)

I have been looking at wiring diagrams recently for the front two seats. It seems that the headrest itself for the 1989 300E, at least, is actually powered by a relay. Perhaps the relays are mostly going bad by now in these cars.

The relays are located under the driver's seat for both the driver's head rest and the passenger's head rest.

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2006 BMW M5 "Heidi" @ 109,000 miles
2005 MBZ C55 AMG "Lorelai" @ 165,000 miles
1991 MBZ 300E "Benzachino II" @ 165,000 miles
1990 MBZ 500SL "Shoshanna" @ 118,000 miles

(On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!)

If it turns out that the problem is broken gears in these headrests (like mine was in my '99SL) contact Odometer Gears at ...

http://www.odometergears.com/index.html

I got my resplacement drive gears from him; fast service; reasonable prices; excellent fit; great warranty.

Bob

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Bob Jones
Bradenton, FL
'87 560SL-Sold
'99 SL500 For Now