I have a 1998 S500. The rear seat vents behind the center console continually
leak cold air. I can reduce the amount by closing the vent control, but cool air
still comes out. This car does not have the climate control option for the rear
seats.

With the heater on or off, I only get cold air out of the center rear vents.

Is there a duct somewhere under the center console that may have dropped
off or is this controlled by the vent system under the dash?

Thanks for your help.

BOBB

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'98 S500 W140.051 119.980

Not sure and I cannot check out my car because its too late to go out to the garage, but if I remember correctly, the rear central vents will only blow cold air (not heated) in the same way as the front central vents do. Hot air at the rear is usually only available from the vents located under the front seats.

On the front central vents (on W140s) you can have hot air blown through them if you push the small buttom with the red dot located at the center of the vents. Maybe if you push this buttom and the system is blowing hot air, you can get also hot air from the rear central vents. I'll try it tomorrow on my car and see.

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A. Rosich
CL 500, 1998
S 500 L, 1998
E 320 T, 1995 [Sadly sold ]

There is a simple cable adjustment unter the sliding cover below the armrest.
With the carpet removed in that compartment you will see the cables & how to adjust them!! Good luck & keep the back warm.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
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44 years foreign automotive repair
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190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Thanks for the info, I did notice that the little curved plastic piece that covers the wires in the hindge of the arm rest was loose and will not stay on (I removed it). So I will have a look.

Thanks
BOBB

__________________
'98 S500 W140.051 119.980

I have the same problem and would also like to know how to remove the center bin?

Please help!

Cheers

First thanks to M.B. Doc for the info.

It's rather simple, lift up the main arm rest, open the
slide cover and remove all junk!!!

Carefully lift out bottom liner and you will see the cable
slide. It is a pressure lock connection on the cables.

What I did was to open the rear vent all the way, then take
some pliers and push the rear cable towards the front while
holding the connector (just a 1/4" or so.

Now close the rear vent and you will feel some resistance
before it "clicks" closed. Gently, but firmly, keep closing vent
until you hear the click. You will see the rear cable slide slightly
in the connector. You are done!

Make sure that the cable slide (connector) moves freely and
the cable does not slip. If it does, you may have to compress
the cable conneector around the cable. Remember, with all MBZ
parts, DO NOT FORCE! Mocho means $$$!

BTW, some S500's have climate control in the back, so there may be
more stuff under the box, and I do not know how that system is
controlled.

BOBB

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'98 S500 W140.051 119.980