Chart based on 587 Kia Optima and 3320 Mazda Mazda3 repairs.
Chart based on 322 Kia Optima and 1850 Mazda Mazda3 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Don't infer Kia Optima or Mazda Mazda3 problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.
Kia Optima and Mazda Mazda3 Problems and Repair Histories