AshDVS;29779 wroteWindow master switches on the C70/S70/V70 are complete rubbish. New ones are expensive and used ones are unlikely to have much life left, buttons are all gummy etc.
If you expect to have the car for a long time it might be worth buying a new one (I dont expect to have the one we have here for an extended period).
Ash , i bought a new one from FCP or IPD i cant remember , i put the internals in the RHD enclosure using the LHD one from USA , it has been through three cars now and either the other door switches affect it or it has started to fail , it is not worth buying a new one at what they cost....
i believe that the micro switches in the door locks ( Mark at Voldat has looked at them...) have an effect on the problem as well which means the door locks as a whole all need to be replaced...
x70 , who would have em....