Volkswagen Phaeton owners have reported a total of 11 problems for their cars built in the 3 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 Volkswagen Phaeton. The 2004 Volkswagen Phaeton cars have the most problems reported (8 problems).
| Model Year | Number of Problems |
|---|---|
| 2006 Phaeton | |
| 2005 Phaeton | |
| 2004 Phaeton |
The following chart shows the 7 most common problems for Volkswagen Phaeton cars. The number one most common problem is related to the vehicle's engine and engine cooling (2 problems). The second most common problem is related to the vehicle's suspension (2 problems).
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling | |
| Suspension | |
| Power Train | |
| Structure | |
| Electrical System | |
| Air Bag | |
| Steering |
It would not be fair to compare the Volkswagen Phaeton 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 Phaeton 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 Volkswagen Phaeton 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.