Mazda CX-7 - Problems, Statistics, and Analysis

Mazda CX-7 owners have reported a total of 1,408 problems for their cars built in the 7 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 Mazda CX-7. The 2007 Mazda CX-7 cars have the most problems reported (685 problems).

Table 1. Total number of problems by model year for Mazda CX-7

Model Year Number of Problems
  2013 CX-7
2
  2012 CX-7
43
  2011 CX-7
167
  2010 CX-7
192
  2009 CX-7
75
  2008 CX-7
244
  2007 CX-7
685

  Common problems of Mazda CX-7

The following chart shows the 21 most common problems for Mazda CX-7 cars. The number one most common problem is related to the vehicle's engine and engine cooling (426 problems). The second most common problem is related to the vehicle's air bags (249 problems).

Table 2. Common problems of Mazda CX-7

Problem Category Number of Problems
  Engine And Engine Cooling
426
  Air Bag
249
  Suspension
228
  Equipment
84
  Power Train
77
  Exterior Lighting
67
  Steering
58
  Electrical System
56
  Tire
20
  Other Fuel System
18
   
  Service Brakes
18
  Structure
17
  Vehicle Speed Control
17
  Visibility
15
  Unknown Or Other
14
  Wheel
13
  Electronic Stability Control
9
  Gasoline Fuel System
7
  Seats
6
  Seat Belt
5
  Latches/locks/linkage
4

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Mazda CX-7 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 CX-7 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 Mazda CX-7 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 CX-7 Model Years

CX-7
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2012 437,8967    
0.78
  2011 16737,3218    
0.56
  2010 19239,9769    
0.53
  2009 7512,74510    
0.59
  2008 24433,88011    
0.65
  2007 68557,41012    
0.99

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Mazda CX-7 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
  2012 CX-7
3
  2011 CX-7
11
  2010 CX-7
9
  2009 CX-7
6
  2008 CX-7
5
  2007 CX-7
9


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