I´ve changed mine just today. The left rear lock became noisy like a “kreeeeeek” sound. I´ve placed a new actuator (not OEM) and it worked 100% like original. But it was done in the repair shop; a simple service; 1 year warranty and total cost around U$45.00. Sorry but I don’t have a diy.
http://cgi.ebay.com/ebaymotors/1x-Po...ayphotohosting