Chart based on 58 BMW 4-Series and 3321 Mazda Mazda3 repairs.
Chart based on 41 BMW 4-Series and 1851 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 BMW 4-Series 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.
BMW 4-Series and Mazda Mazda3 Problems and Repair Histories