2003 Subaru Impreza - Problems, Statistics, and Analysis

Common problems of the 2003 Subaru Impreza

58 problems have been reported for the 2003 Subaru Impreza.
The following chart shows the 16 most common problems for 2003 Subaru Impreza.
The number one most common problem is related to the vehicle's service brakes, hydraulic
with 13 problems.
The second most common problem is related to the vehicle's fuel system, gasoline
(12 problems).

Table 1. Common problems of the 2003 Subaru Impreza

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 2003 Subaru Impreza in the United States are 23,833 units [1]. If the total number of problems reported by Subaru Impreza owners in the last 15 years is 58, and the age of the vehicle is 15, the PPMY index can then be calculated as

The following chart shows the number of problems reported during each of the service
years since the debut of the 2003 Subaru Impreza in 2003.

Table 2. PPMY Index and Problem Occurrence Trend

Service Year

Number of Problems

2018

1

2017

0

2016

4

2015

2

2014

1

2013

4

2012

1

2011

1

2010

2

2009

3

2008

6

2007

5

2006

4

2005

3

2004

4

2003

2

Compare the 2003 Subaru Impreza with Other Model Years

When making the decision between buying a new or used Subaru Impreza,
the following table can be used to compare the 2003 Subaru Impreza
with the Subaru Impreza from other model years.
Note that the number of problems reported for the 2003 Impreza is 58
while the average number of problems reported for the 23 model years of the Subaru Impreza is 78.

Table 3. Compare the 2003 Subaru Impreza with other model years