My S500 recently blew its airpump located in the drivers side rear fender. I replaced it and now everything on the vacuum system works great except the mulitcontour seats (lumbar, sides) which inflate. Even the back ones dont work. I suspect a common fuse or relay? The fuse/relay chart didnt list the contour seats.. Any help would be greatly appreciated

Thanks

Dave

The lumbars are driven off the locking pump, under the rear seat! the pump runs and builds pressure, but if there is a leak it will time out

Peter I removed the rear bottom seats and saw no air pump. I only saw vacuum hoses going from rear lumbar controls and other lines going to the trunk pump. Is there a second pump. Thanks Dave

Dave, it's under the passenger side rear seat mounted in a fitted cutout. Since all lumbar supports are out, it's probably the pump??

__________________
Regards . . . . JimF
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'94 S500 Cpe

Visit my Mercedes Web Page

Just looked under rear passenger seat and only found a motorola and timins box both related to communications. No pump?

Well, I guess the MAIN question should have been asked . . . . (actually YOU should have mentioned the YEAR and MODEL in your FIRST post) . . what year and model???

In any post, it's a good thing to do . . . lot of wasted time/space isn't it??

Maybe the first clue was "driver's side rear fender". . . for W140 (C140), that pump is located in the trunk behind the facade.

__________________
Regards . . . . JimF
-------------------
'94 S500 Cpe

Visit my Mercedes Web Page

Absolutely true W220 S500 2000yr Just bought brand new air pump located in drivers side fender in trunk. Everything vacuum works but seats.

Sorry