mercdes dealer in japan cant fix my car
i have a1996 s 500 benz dealer dont know what is wrong my car has navi system. which controls a/c radio cd tv tel navi only working is a/c and cd but no vol control . any way now dealer has my car for ten monhts.is very sad M.B DEALER cant fix ther on cars. please let know how to fix my car. thank you e.t



