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  #1  
Old 08-26-2002, 05:35 PM
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Location: Seattle Area
Posts: 373
W124 electric headrests...

Hi all, some expertise please...

My '95 E420's left-side head rest has never worked (doesn't raise up and down with the switch on the door). I can hear the motor running when I move the switch, but no matter how I try to re-install the head-rest, the motor never 'grabs' the posts to re-engage properly.

The owners manual shows how to remove the headrests but makes no mention of a trick to get motor to grab onto it again when putting it back in....

Is there a trick to this?

TIA,
- Ryan

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  #2  
Old 08-26-2002, 08:31 PM
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You have to remove the rear of the seat and replace the lift bridge.
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  #3  
Old 08-26-2002, 10:04 PM
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Replace the lift bridge eh Donnie? Care to elaborate a little more?

'Replace' to me, sounds like something may be broken, but I don't remember feeling anything snap or wrench free suddenly. Of course it could very well have been broken by the PO...

I've never taken a seat apart in a 124 - any trick towards getting the back panel off?

Also, is this lift bridge something expensive to replace?

Mucho thanks in advance,
- Ryan
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'95 E420 - 'Shadowfax' 138kmi.
'92 Volvo 740Turbo Bard 193kmi
'74 240D - 'Ol' Green' 4spd Manual 104kmi. (sold )
'77 300D - 'Red' 223kmi (sold)
'75 240D - 'Bianca the Blue Bomber' (sold)
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  #4  
Old 08-27-2002, 01:47 PM
mbe32094's Avatar
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Location: Bay area, CA
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The gear mechanism is defective. I had the same problem with my 94 E320 before. The gear meachanism overshoot in the up direction. I can hear the motor running but nothing happens. You need tho open the back seat cover. You will find the instruction on how to remove the back seat cover in the CD manual. Good luck.
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  #5  
Old 08-27-2002, 01:47 PM
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There are several posts to this problem...I have replied to almost ALL of them...

Seems like it's time for all W124 headrests assemblies to go bad right now...

Just did this repair about three weeks ago...the "lift bridge" is cheap...ordered 2 (one for later if and when the other one breaks) for $35 @ FastLane. So I guess they are $18 apiece?

You can't tell by feel or otherwise that anything is amiss until you gain access to the broken part. Normally the plastic flange that grips one of the headrest shafts has cracked. The motor inertia will still allow the headrest to be "pushed" upward, but there is nothing to grip the shaft when in the downward mode.

Anyway, here is the link to the thread I posted when I did the repair...

http://www.peachparts.com/shopforum/showthread.php?threadid=43301&highlight=headrest+repair
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  #6  
Old 08-27-2002, 05:51 PM
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Hey thanks G-benz - you da man! I'm normally pretty good about checking the archives first, don't know why I didn't this time

Thanks again, looks like I'll be giving fastlane a call...

Regards,
- Ryan
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'95 E420 - 'Shadowfax' 138kmi.
'92 Volvo 740Turbo Bard 193kmi
'74 240D - 'Ol' Green' 4spd Manual 104kmi. (sold )
'77 300D - 'Red' 223kmi (sold)
'75 240D - 'Bianca the Blue Bomber' (sold)
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  #7  
Old 08-28-2002, 12:27 AM
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As pennance, please post photos to go with G-Benz's description!

I've got a sneaky feeling my headrest is on borrowed time...
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  #8  
Old 11-23-2019, 04:03 PM
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Join Date: Feb 2014
Posts: 74
Here's a video of how to get into the seat and look at the headrest parts.

https://youtu.be/I7WRJtzXmds

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