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W203 c200 Kompressor Sport Coupe
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6 Posts
Discussion Starter #1
Hello,
My brother has a '86 E230.
Last weekend we tried to fix its seat vacuum pump (yes it has a front seat back support works with air) and removed the rear seat.
And noticed previous owner just unplugged the seat pump cables and only vacuum door lock cables were plugged in that pump.
Anyway, we replug the seat pumps and noticed it only works for a minute after car started and lets you set your seat for once.Then doesnt pump any air in the rest of the journey.
Is it the default behaviour or is this pump suppose to work nonstop while car is working..
 

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Premium Member
About a dozen 1988, 1989, 1990, and 1991 sedans, wagons, 4Matics and 1 coupe
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5,466 Posts
The orthopaedic seats are so rare on the early 124s here in the US that I've never seen one personally. I've seen ads for cars that are supposed to have them though. I'll look at the 124 service manual and see the description reveals anythng obvious about system behavior.
I'll assume for the moment that you *should* be able to adjust the seats any time that the engine is running. IOW there's a reason that the previous owner had things unplugged. Maybe there's a leaking bladder and the pump runs until it times out. That's my suspicion without knowing anything else.
 

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1991 W124.128
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136 Posts
orth. seats

recently bought a W124.128 which came with orth. front seats, bladders in the seat and in the backrest. However, this feature not working right now and have not checked it out as not a priority. Must admit could not ever get the rear seat cushion out as clips would not release, pressing rearwards and lifting up the seat did not work and I gave up. Between vac pump and seat controls there is also somewhere a air pressure reservoir.


The orthopaedic seats are so rare on the early 124s here in the US that I've never seen one personally. I've seen ads for cars that are supposed to have them though. I'll look at the 124 service manual and see the description reveals anythng obvious about system behavior.
I'll assume for the moment that you *should* be able to adjust the seats any time that the engine is running. IOW there's a reason that the previous owner had things unplugged. Maybe there's a leaking bladder and the pump runs until it times out. That's my suspicion without knowing anything else.
 

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Registered
W203 c200 Kompressor Sport Coupe
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6 Posts
Discussion Starter #4
Pretty late reply on this topic ..even we already sold the car.. But let me write our experience on that..

We found a small leak that releases the air in about an hour completely..

Probably, owner wasn't like the buzzing sound that pump makes for a min everytime u run the car, and thats why disabled the pump.

Anyway, we reconnected the pump back.. and also, made a small switch that triggers the pump whenever we want, so even there's no air left in the front seats, with a single clcik on button, it pumps the air.
 
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