Subaru Forester - Problems, Statistics, and Analysis

Subaru Forester owners have reported a total of 3,019 problems for their cars built in the 22 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 Subaru Forester. The 2015 Subaru Forester cars have the most problems reported (327 problems).

Table 1. Total number of problems by model year for Subaru Forester

  Common problems of Subaru Forester

The following chart shows the 28 most common problems for Subaru Forester cars. The number one most common problem is related to the vehicle's engine and engine cooling (468 problems). The second most common problem is related to the vehicle's vehicle speed control (299 problems).

Table 2. Common problems of Subaru Forester

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Subaru Forester 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 Forester 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 Subaru Forester 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.

Table 3. Use PPMY Index to Compare Reliability Across Forester Model Years

Forester
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2018 59130,6351    
0.45
  2017 117195,0272    
0.30
  2016 139156,3613    
0.30
  2015 327224,2724    
0.36
  2014 215146,4835    
0.29
  2013 5342,7746    
0.21
  2012 9764,1387    
0.22
  2011 14174,8028    
0.24
  2010 237112,5179    
0.23
  2009 19588,75910    
0.22
  2008 5030,40611    
0.15
  2007 7043,98512    
0.13
  2006 9155,16513    
0.13
  2005 9151,54714    
0.13
  2004 24963,32315    
0.26
  2003 22166,77016    
0.21
  2002 10755,76417    
0.11
  2001 16864,05118    
0.15
  2000 9029,99619    
0.16
  1999 15446,56720    
0.17

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Subaru Forester is to use the total number of problems reported during the vehicle's first year in service, as shown in the Table 4.

Table 4. Number of problems in vehicle's; first service year

Model YearProblems Reported
  2019 Forester
12
  2018 Forester
46
  2017 Forester
30
  2016 Forester
54
  2015 Forester
71
  2014 Forester
37
  2013 Forester
10
  2012 Forester
14
  2011 Forester
15
  2010 Forester
21
  2009 Forester
22
  2008 Forester
3
  2007 Forester
10
  2006 Forester
14
  2005 Forester
10
  2004 Forester
7
  2003 Forester
26
  2002 Forester
11
  2001 Forester
36
  2000 Forester
19
  1999 Forester
24
  1998 Forester
31


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