Ok i think i have finally lost the plot! I have been having problems with my front seat sliding mechanism and i took the cover off today to see what was going on. Anyway when the cover was removed i could see the lumbar support mechanism. Here is where i lose it - how do i adjust the lumbar support? I only have 3 adjusaters on my seat:- 1. to move the seat back and forth 2. to allegedy gain access to back seats ( which is broken ) 3. to pump seat position up and down.