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Audi A8 - Problems, Statistics, and Analysis

Audi A8 owners have reported a total of 114 problems for their cars built in the 20 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 A8. The 2004 Audi A8 cars have the most problems reported (20 problems).

Table 1. Total number of problems by model year for Audi A8

Model Year Number of Problems
  2016 A8
1
  2015 A8
13
  2013 A8
3
  2012 A8
6
  2011 A8
11
  2010 A8
1
  2009 A8
3
  2008 A8
6
  2007 A8
1
  2006 A8
6
  2005 A8
7
  2004 A8
20
  2003 A8
3
  2002 A8
1
  2001 A8
6
  2000 A8
3
  1999 A8
8
  1998 A8
4
  1997 A8
10
  1996 A8
1

  Common problems of Audi A8

The following chart shows the 20 most common problems for Audi A8 cars. The number one most common problem is related to the vehicle's vehicle speed control (15 problems). The second most common problem is related to the vehicle's electrical system (14 problems).

Table 2. Common problems of Audi A8

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Audi A8 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 A8 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 A8 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 A8 Model Years

A8
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2016 13,9271    
0.25
  2015 136,6322    
0.98
  2013 36,6614    
0.11
  2012 64,5415    
0.26
  2011 114,7526    
0.39
  2010 16497    
0.22
  2009 32,0378    
0.18
  2008 62,7459    
0.24
  2007 15,10410    
0.02
  2006 65,40311    
0.10
  2005 75,34012    
0.11
  2004 207,66713    
0.20
  2003 394414    
0.23
  2002 11,01215    
0.07
  2001 62,99716    
0.13
  2000 32,31717    
0.08



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