Lumbar seats and rear headrests

[huesey1974]

Hi,
Both not working, I can hear a click when I press the headrest button but seats do nothing. I have the boot stripped and see the pump in there, would this be the probable cause. 2009 C216 Cl500.
Thanks

 

[Mikeone]

Maybe check the wiring also, do you have any seas fault code after a diag ?