I ahd some issues with the switches on my V70 XC. I haven't fixed them yet. I do know that the driver's door switch costs around $130 new. Used it is about $75. I don't know what the individual door switches cost. What I also know is that the master switch must function right for the door switches to works since the contacts provide power for the door switches. As for replacing them, each switch can be carefullt pried from the door arm rest. Carefukl is the key word to prevent marring the bezel. Once out, they can be unplugged and replaced. One word of caution is also that the remote door lock control is in the driver side switch and I can't say for sure if it will adapt to your remote door opener if it is changed. I hope this helps.