Mazda 626 owners have reported a total of 2,352 problems for their cars built in the 8 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the Mazda 626. The 1998 Mazda 626 cars have the most problems reported (498 problems).
The following chart shows the 22 most common problems for Mazda 626 cars. The number one most common problem is related to the vehicle's power train (1,424 problems). The second most common problem is related to the vehicle's engine and engine cooling (274 problems).
|Problem Category||Number of Problems|
|Engine And Engine Cooling|
|Unknown Or Other|
|Vehicle Speed Control|
|Gasoline Fuel System|
|Other Fuel System|
It would not be fair to compare the Mazda 626 of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across 626 model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.
PPMY = P / S / Y * 1000,
where P = total problems reported during the life of a Mazda 626 model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).
The results are shown in Table 3.
Another way to measure the reliability across the model years of the Mazda 626 is to use the total number of problems reported during the vehicle's first year in service, as shown in the Table 4.
|Model Year||Problems Reported|