Mitsubishi Montero - Problems, Statistics, and Analysis

Mitsubishi Montero owners have reported a total of 713 problems for their cars built in the 11 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 Mitsubishi Montero. The 2001 Mitsubishi Montero cars have the most problems reported (204 problems).

Table 1. Total number of problems by model year for Mitsubishi Montero

  Common problems of Mitsubishi Montero

The following chart shows the 24 most common problems for Mitsubishi Montero cars. The number one most common problem is related to the vehicle's service brakes, hydraulic (205 problems). The second most common problem is related to the vehicle's engine and engine cooling (87 problems).

Table 2. Common problems of Mitsubishi Montero

Problem Category Number of Problems
  Service Brakes
205
  Engine And Engine Cooling
87
  Suspension
58
  Power Train
54
  Electrical System
49
  Air Bag
38
  Structure
32
  Steering
28
  Equipment
24
  Visibility
21
   
  Unknown Or Other
18
  Gasoline Fuel System
15
  Vehicle Speed Control
14
  Tire
14
  Seat Belt
12
  Other Fuel System
10
  Exterior Lighting
9
  Wheel
6
  Seats
6
  Latches/locks/linkage
5
  Child Seat
3
  Air Brake
2
  Electronic Stability Control
2
  Interior Lighting
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Mitsubishi Montero 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 Montero 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 Mitsubishi Montero 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 Montero Model Years

Montero
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2006 62,66313    
0.17
  2005 13,83214    
0.02
  2004 53,87515    
0.09
  2003 5213,78116    
0.24
  2002 12626,99517    
0.27
  2001 20441,81718    
0.27
  2000 663,89919    
0.89

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Mitsubishi Montero 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
  2003 Montero
4
  2002 Montero
11
  2001 Montero
19
  2000 Montero
15
  1999 Montero
14
  1998 Montero
15
  1997 Montero
14
  1996 Montero
3


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