Land Rover LR4 - Problems, Statistics, and Analysis

Land Rover LR4 owners have reported a total of 62 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 Land Rover LR4. The 2016 Land Rover LR4 cars have the most problems reported (15 problems).

Table 1. Total number of problems by model year for Land Rover LR4

Model Year Number of Problems
  2016 LR4
15
  2015 LR4
4
  2014 LR4
7
  2013 LR4
11
  2012 LR4
11
  2011 LR4
8
  2010 LR4
6

  Common problems of Land Rover LR4

The following chart shows the 17 most common problems for Land Rover LR4 cars. The number one most common problem is related to the vehicle's electrical system (13 problems). The second most common problem is related to the vehicle's engine and engine cooling (8 problems).

Table 2. Common problems of Land Rover LR4

Problem Category Number of Problems
  Electrical System
13
  Engine And Engine Cooling
8
  Service Brakes
8
  Equipment
6
  Vehicle Speed Control
4
  Power Train
4
  Air Bag
3
  Other Fuel System
3
  Steering
2
  Parking Brake
2
   
  Electronic Stability Control
2
  Structure
2
  Gasoline Fuel System
1
  Exterior Lighting
1
  Seat Belt
1
  Seats
1
  Suspension
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Land Rover LR4 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 LR4 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 Land Rover LR4 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 LR4 Model Years

LR4
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2016 1514,9033    
0.34
  2015 46,1034    
0.16
  2014 73,6205    
0.39
  2013 117,2976    
0.25
  2012 118,8667    
0.18
  2011 89,1808    
0.11
  2010 65,6129    
0.12


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