rear head rest
Thread Starter
Junior Member
Joined: Mar 2013
Posts: 16
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w221
rear head rest
hello all,
i was wondering if some one could help me please...
i have a 2007 w221. The rear head rests are stuck in an upright position. The switch in the central console does not do anything. To complicate matters when i put the key in ignition or open the door, i hear a humming noise from rear seat are as if a motor is working.
The stealer picked my car...could not even hear the hum!
but for even taking the rear seat they want £180!
I had a look thru the forum..got some info...but i cannot find any screws or bolts above the central arm rest to take it apart.
could somebody guide me please?
i was wondering if some one could help me please...
i have a 2007 w221. The rear head rests are stuck in an upright position. The switch in the central console does not do anything. To complicate matters when i put the key in ignition or open the door, i hear a humming noise from rear seat are as if a motor is working.
The stealer picked my car...could not even hear the hum!
but for even taking the rear seat they want £180!
I had a look thru the forum..got some info...but i cannot find any screws or bolts above the central arm rest to take it apart.
could somebody guide me please?
Thread Starter
Junior Member
Joined: Mar 2013
Posts: 16
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w221
not sure...sorry.
but it is just standard. The rear seats are fixed with no option to move or heat. The rear headrests were supposed to move down with the press of the button in the central console.
yes everything else is working fine.
i had a comand upate last year as well.
but it is just standard. The rear seats are fixed with no option to move or heat. The rear headrests were supposed to move down with the press of the button in the central console.
yes everything else is working fine.
i had a comand upate last year as well.
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Joined: Jan 2011
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From: Central Pennsylvania
2012 S350 Bluetec 4Matic, Diamond White, P2
The humming you hear is likely the AirMatic pump. I hear this too. Try to pull the headrests slightly forward while someone presses the release button. This will release the tension against the lock. This may allow the release to kick out. Sometimes they can stick a little bit.
Thread Starter
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Joined: Mar 2013
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w221
Thanks for all the reply.
I will try all the suggestions.
The humming noise is a strange one.When i open the front doors it starts...and lasts for less than a minute.It only happens if i open the front doors and not the rear. it certainly cones from the rear seat.
I will try all the suggestions.
The humming noise is a strange one.When i open the front doors it starts...and lasts for less than a minute.It only happens if i open the front doors and not the rear. it certainly cones from the rear seat.
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Joined: Jul 2010
Posts: 386
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From: Wisconsin
CL550 1976 450 SL
Do you have multicontour seats? I had same issue years ago, w/ the rear headrests.
Out of warranty, I tolerated for awhile. Indi mechanic cleared fault code(s) for the multicontour option and when I hit the release button on the console, the headrests dropped immediately. The two "adapters", as they are called, in each front seat were blown.
I did not immediately repair, but I at least was not looking at the two rear headrests through the mirror. The two issues seemed intertwine in my case.
BUT, I first would locate the fuse box area associated w/ the headrests and check them. Surely the least expensive elimination.
Good luck.
Out of warranty, I tolerated for awhile. Indi mechanic cleared fault code(s) for the multicontour option and when I hit the release button on the console, the headrests dropped immediately. The two "adapters", as they are called, in each front seat were blown.
I did not immediately repair, but I at least was not looking at the two rear headrests through the mirror. The two issues seemed intertwine in my case.
BUT, I first would locate the fuse box area associated w/ the headrests and check them. Surely the least expensive elimination.
Good luck.
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Thread Starter
Junior Member
Joined: Mar 2013
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w221
no I do not have the multicontour seat.
I took the head rests out as suggested, put it back, but still no change.
The dealer tried to reset the system, but no help.
I will check the fuse as well.
sorry, but where is the fuse box located? thanks
I took the head rests out as suggested, put it back, but still no change.
The dealer tried to reset the system, but no help.
I will check the fuse as well.
sorry, but where is the fuse box located? thanks
Last edited by androidpi; May 5, 2013 at 10:31 AM.
