93 problems have been reported for the 2005 Subaru Impreza. The following chart shows the 19 most common problems for 2005 Subaru Impreza. The number one most common problem is related to the vehicle's suspension with 17 problems. The second most common problem is related to the vehicle's fuel system, other (13 problems).
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2005 Subaru Impreza in the United States are 38,808 units [1]. If the total number of problems reported by Subaru Impreza owners in the last 20 years is 93, and the age of the vehicle is 20, the PPMY index can then be calculated as
PPMY Index = 93 / 38,808 / 20 * 1000 = 0.12.
For more information, refer to this page: A study of reliability comparison across Subaru Impreza model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2005 Subaru Impreza in 2005.
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When making the decision between buying a new or used Subaru Impreza, the following table can be used to compare the 2005 Subaru Impreza with the Subaru Impreza from other model years. Note that the number of problems reported for the 2005 Impreza is 93 while the average number of problems reported for the 29 model years of the Subaru Impreza is 106.