Curious if anyone with sport seats has had any problems with the drivers seat on the thigh bolster adjustments? I can hear my motor turning when I push the button, but the sides are not coming in. I understand there's some sort of air bladder inside that fills up? Then when you press the button the opposite direction it deflates the bladder.

My lumbar/back adjuster is working just fine - same motor sound, and I hear the air deflate when pressed the opposite direction.

Anyone know if it's the same motor and same air supply for both sections of the seat or if they are independent? Trying to narrow down if it's a bladder issue, fill tube issue or motor not creating the air required etc.

 

Going to take this as a no... Ah well, I'll dive into it when the weather is nice and see if I can't figure out.

 

have you tried deflating then inflating? maybe you're in max inflate?

 

The same motor (air pump ) is used for the seat bolsters and the backrest bolsters. It may be in the valving that is creating the problem.

 

I have run the inflator for more than enough time and tried to deflate..nothing. The top half works, bottom doesn't.

I found the lines and traced a few...doesn't seem to getting air in the bottom air line..so I guess next I'll try to find the other end where the pump is and swap lines to see if I can get the lower to at least blow up...that should rule out the pump and put it at the valve.

Seat schematics and troubleshooting: http://www.nicoclub.com/FSM/G37/Coupe/2008/SE.pdf