Two problems related to wiper have been reported for the 2007 Infiniti M45. The most recently reported issues are listed below.
Side mirrors get stuck out of position pointing down and continuously make clicking noises making it impossible to drive.
I purchased the car new in 2007. It is extremely well maintained. I noticed about a year ago that the dashboard; especially the surfaces which face the front window, has developed a dangerous glaze. This glaze is very reflective and prevents proper viewing through the front windshield when light is on the dashboard; day or night. Nissan needs to address this problem.