Nissan 350z reliability problems Nissan 350Z Problems & Complaints … Nissan 350Z Problems. The worst model years for the Nissan 350Z are shown below. The 2003 350Z has the most overall problems. Used 2003 Nissan 350Z... Source Source Source Source Source Source Source Source Source Source Read Also: Common problems with 2003 nissan 350z 350Z nissan problems Problems with the nissan 350z 2003 Nissan 350z common problems 2003 Nissan 350z transmission problems Problems with 2003 nissan 350z