Rear headrest

Sep 24, 2018 | 12:12 PM

Tommy jenko

Thread Starter

Newbie

Joined: Sep 2018

Posts: 11

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CL500 w216

Rear headrest

Hi I’m new to the world of Merc and have just bought a CL500. I was assuming that the rear headrests come up by pressing the button in the front is this correct because mine don’t seem to do anything.

Jan 25, 2019 | 03:51 AM

07CL550Benz

Member

Joined: Jan 2019

Posts: 231

Likes: 10

2007 CL550

This is happening for me as well. I can kind of hear something going on when I hit the button but then nothing. Anyone know where I should be checking?

Jan 25, 2019 | 03:12 PM

COUPCONNOISSEUR

Senior Member

Joined: Dec 2013

Posts: 314

Likes: 35

From: New York

2010 CL550

Quote:

Originally Posted by 07CL550Benz

This is happening for me as well. I can kind of hear something going on when I hit the button but then nothing. Anyone know where I should be checking?

go on youtube and look for a video in which the auxiliary battery is shown being replaced(its in the trunk, behind the rear seats)..i believe that is where the pump to raise and lower the headrests is accessible.

Jan 25, 2019 | 03:16 PM

07CL550Benz

Member

Joined: Jan 2019

Posts: 231

Likes: 10

2007 CL550

Thank you! I actually did some research and realized I believe I know what the problem is. I've been hearing air blowing when I open the doors and since the car is new to me I thought it was a feature where it cools the seat for you automatically (like when you roll all the windows down from the outside). But turns out it's most likely an air leak under the seat which is the same air that moves those rear headrests. Now my task is trying to figure out how to access the bottom of the seat to repair the air leak.

Jan 27, 2019 | 08:51 PM

Em Bee Lover

Senior Member

Joined: Jul 2010

Posts: 386

Likes: 3

From: Wisconsin

CL550 1976 450 SL

Do you have the "Dynamic Seats" option? Go around a corner and the seat back bolster inflates to keep the driver stable, basically? If so, the "bladders" tend to deteriorate over time. Fancy phrasing for the gd things leak. Indeed, there is a pump that inflates all associated. A chip shuts it down, if the pump is essentially blowing into a busted balloon. Typically, you can clear the fault codes and then all is well.....for a little while. The chips catch up and there ya sit. If all you want is to get the rear head rests down, clear the faults and be ready to hit knock down on your center console. Then, until you get the bladders fixed (bring money), don't raise the headrests. That was my experience years ago. May be wrong, but offering an experience. Good luck.

Jan 28, 2019 | 04:51 AM

07CL550Benz

Member

Joined: Jan 2019

Posts: 231

Likes: 10

2007 CL550

I do have dynamic seats. Do you think there is a way to open the seats up and repair or replace the bladders myself? I haven't even seen the inside yet so I don't know what to expect. I'm sure I won't be willing to pay what it would take to fix these at the dealership.

Jan 28, 2019 | 04:58 PM

Em Bee Lover

Senior Member

Joined: Jul 2010

Posts: 386

Likes: 3

From: Wisconsin

CL550 1976 450 SL

There's a bladder in the upright seat back. That's fairly accessible. The cover can be removed from the back of the seat. If it's the seat bladder leaking, that's a pia. The entire seat needs removing, the covering/leather needs to be stripped off and then you can access the bladder. Add to that there is a twin seat and seat back to deal with, because it's almost impossible to isolate which of the four or which ones of the four are leaking. I chased this many years ago and threw a ----load of money at it. Never did find the right one. I quit throwing money at the issue and lived w/o the joy of the option.

Probably five or more yrs. ago I remember the bladder alone for the drivers' seat back was over $700. Add labor, unless you're darn capable and patient and it's pretty overwhelming. Welcome to MB land. Not being negative purposely, simply explaining what I experience. Good luck