Subaru Baja - Problems, Statistics, and Analysis

Subaru Baja owners have reported a total of 125 problems for their cars built in the 4 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 Baja. The 2005 Subaru Baja cars have the most problems reported (39 problems).

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

Model Year Number of Problems
  2006 Baja
28
  2005 Baja
39
  2004 Baja
22
  2003 Baja
36

  Common problems of Subaru Baja

The following chart shows the 18 most common problems for Subaru Baja cars. The number one most common problem is related to the vehicle's engine and engine cooling (18 problems). The second most common problem is related to the vehicle's fuel system, other (16 problems).

Table 2. Common problems of Subaru Baja

Problem Category Number of Problems
  Engine And Engine Cooling
18
  Other Fuel System
16
  Air Bag
14
  Power Train
12
  Gasoline Fuel System
11
  Service Brakes
10
  Suspension
8
  Steering
7
  Equipment
5
  Structure
5
   
  Vehicle Speed Control
4
  Tire
3
  Electrical System
3
  Wheel
3
  Air Brake
3
  Unknown Or Other
1
  Electronic Stability Control
1
  Seat Belt
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Subaru Baja 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 Baja 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 Baja 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 Baja Model Years

Baja
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2006 287,74912    
0.30
  2005 398,38113    
0.36
  2004 222,26614    
0.69
  2003 3615,82715    
0.15


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