2003 Subaru Impreza - Problems, Statistics, and Analysis

small car iamge 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

Problem Category Number of Problems
  Service Brakes
13
  Gasoline Fuel System
12
  Other Fuel System
11
  Air Bag
3
  Structure
3
  Engine And Engine Cooling
3
  Visibility
2
  Suspension
2
  Equipment
2
  Tire
1
  Air Brake
1
  Seats
1
  Seat Belt
1
  Vehicle Speed Control
1
  Power Train
1
  Exterior Lighting
1

small car iamge PPMY Index and Problem Occurrence Trend

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

      PPMY Index = 58 / 23,833 / 15 * 1000 = 0.16.

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 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

small car iamge 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

Model Year Number of Problems
  2018 Impreza
9
  2017 Impreza
42
  2016 Impreza
22
  2015 Impreza
31
  2014 Impreza
57
  2013 Impreza
111
  2012 Impreza
206
  2011 Impreza
58
  2010 Impreza
37
  2009 Impreza
103
  2008 Impreza
228
  2007 Impreza
77
  2006 Impreza
59
  2005 Impreza
81
  2004 Impreza
100
  2003 Impreza
58
  2002 Impreza
324
  2001 Impreza
13
  2000 Impreza
54
  1999 Impreza
27
  1998 Impreza
55
  1997 Impreza
37
  1996 Impreza
25


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