The drivers side lumbar support on my 97 EB doesn't work right. When I press the button, I feel it move but a couple of seconds later it reverts back to the original setting. The passenger side works just fine.

How does this thing work - mechanical? air pump/vacuum? Is it an easy fix or another engineering nightmare? If its too tough, I'm tempted to just buy a lumbar support pillow!

 

I'm not sure how it works but my guess Is that there is some plastic gears in there that might be worn out.
like you would see under the power seat.

 

My '97 uses a small vacuum pump under the seat to inflate the lumbar bag. The release switch activates a valve to bleed the air from it to deflate the bag.

 

 

[updated:LAST EDITED ON 05-Apr-02 AT 10:57 AM (EST)]My switch seems to be a little 'loose'. The one on the passenger side doesn't have the same feel to it. Is this a switch/valve assembly or are they two different components? If it were to be replaced, is it a difficult fix?

 

U know what? My 95 EB has the same issue... I can feel the passesnger side inflating but the driver's dont. Also, the switches feel different on each seat. Like the driver's been worn out.