E Class coupe multi-contour seat question
Thread Starter
Newbie
Joined: Jun 2009
Posts: 14
Likes: 0
From: Vancouver, BC
2010 E350 Coupe, 2009 C300 4Matic, 2007 E350 4matic
E Class coupe multi-contour seat question
I just picked up my new E-class coupe 3 days ago. My car is equipped with the multi-contour seat. I noticed that the pump for the multi-contour seat bladders runs once in a while even when I am not doing any adjustment. Does anyone know if that is normal? (it needs to be pretty quiet to hear the pump, i.e. car parked, engine off & key in accessory 1 position)
Newbie
Joined: Jul 2006
Posts: 14
Likes: 6
From: Switzerland
MB E350CGI T (S212 Estate)
Yes, I think that's normal.
The bladders are loosing air continuously, so the pump refills it periodically. I had the same in my previous S-Class, and I observed it again in the new E-class
The bladders are loosing air continuously, so the pump refills it periodically. I had the same in my previous S-Class, and I observed it again in the new E-class
Senior Member
Joined: Nov 2009
Posts: 345
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From: NY
2010 E550 4matic, 2008 MDX, 2011 335i Vert
are you certain it is not the suspension - which is also prone to flatulence? I have the sedan with drive dynamic but haven't noticed coming from the seats yet.
Hope you're right - maybe now I really will be able to blame the car!!
Hope you're right - maybe now I really will be able to blame the car!!
Thread Starter
Newbie
Joined: Jun 2009
Posts: 14
Likes: 0
From: Vancouver, BC
2010 E350 Coupe, 2009 C300 4Matic, 2007 E350 4matic
Hey Alesius, thanks very much for the quick response to my question. I think you are right, the pump is probably making up the loss air in the bladder. That's also what I thought initially but it just seems to be running too frequently (sometimes every 20-30sec or every minutes or two). If you said other cars are doing the same thing then it's probably just the way that it operates. I'll just ignore it then.
Newbie
Joined: Jul 2006
Posts: 14
Likes: 6
From: Switzerland
MB E350CGI T (S212 Estate)
I tested it today. Switched off engine and AC.
First it took almost two min before I heard something. Then when I started moving on the seat back and forth, pressing the bladders, the pump started working.
You can hear it best if you sit on the backseat, and sombody sits on the driver seat.
The airmatic also does noises (usually after you arrive and get out of the car), but those are much louder and clearly different.
First it took almost two min before I heard something. Then when I started moving on the seat back and forth, pressing the bladders, the pump started working.
You can hear it best if you sit on the backseat, and sombody sits on the driver seat.
The airmatic also does noises (usually after you arrive and get out of the car), but those are much louder and clearly different.
MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,085
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From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
ya, mine does the same. and it lets off air when you turn the car off. if you put key in acc, then the air will start to inflate again.
