"Over time the actuator fails to lock and unlock, it is a common problem with these vehicles. This is a new revised version from the factory. "

$165+ship from "ocinfiniti"
http://cgi.ebay.com/ebaymotors/INFIN...#ht_3302wt_937

 

^ good deal. cost as much as a window motor so thats not too bad. my driver side is acting funny lately. when i press the unlock button on the console it jus twitches but if i use the fob it works 100% of the time. so i guess its on its way out. i never noticed it cus i rarely use the button. only the keyfob

 

I will be attempting to replace both factory door lock actuators on my coupe this weekend. If you think American prices are bad Nissan New Zealand wanted $900 for both actuators, shipped fom Japan. Unfortunately, I paid it because I was tired of the $5 fix failing on me. Good luck to me.