Audi A5 - Problems, Statistics, and Analysis

Audi A5 owners have reported a total of 153 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 Audi A5. The 2010 Audi A5 cars have the most problems reported (34 problems).

Table 1. Total number of problems by model year for Audi A5

Model Year Number of Problems
  2018 A5
7
  2017 A5
3
  2016 A5
1
  2015 A5
4
  2014 A5
10
  2013 A5
25
  2012 A5
19
  2011 A5
27
  2010 A5
34
  2009 A5
17
  2008 A5
6

  Common problems of Audi A5

The following chart shows the 12 most common problems for Audi A5 cars. The number one most common problem is related to the vehicle's air bags (53 problems). The second most common problem is related to the vehicle's engine and engine cooling (37 problems).

Table 2. Common problems of Audi A5

Problem Category Number of Problems
  Air Bag
53
  Engine And Engine Cooling
37
  Electrical System
10
  Equipment
10
  Steering
9
  Visibility
8
  Power Train
7
  Structure
6
  Service Brakes
5
  Other Fuel System
4
  Wheel
2
  Exterior Lighting
2

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Audi A5 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 A5 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 Audi A5 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 A5 Model Years

A5
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2018 727,4001    
0.26
  2017 33,2412    
0.46
  2016 110,4703    
0.03
  2015 413,2274    
0.08
  2014 1019,0785    
0.10
  2013 2521,7316    
0.19
  2012 1913,7867    
0.20
  2011 2715,2838    
0.22
  2010 3414,5159    
0.26
  2009 178,79310    
0.19
  2008 63,15411    
0.17


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