554 problems have been reported for the 2003 Volkswagen Jetta. The following chart shows the 24 most common problems for 2003 Volkswagen Jetta. The number one most common problem is related to the vehicle's seats with 103 problems. The second most common problem is related to the vehicle's electrical system (96 problems).
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2003 Volkswagen Jetta in the United States are 149,546 units [1]. If the total number of problems reported by Volkswagen Jetta owners in the last 23 years is 554, and the age of the vehicle is 23, the PPMY index can then be calculated as
PPMY Index = 554 / 149,546 / 23 * 1000 = 0.16.
For more information, refer to this page: A study of reliability comparison across Volkswagen Jetta model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2003 Volkswagen Jetta in 2003.
| Service Year | Number of Problems |
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| 2026 | |
| 2025 | |
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| 2003 |
When making the decision between buying a new or used Volkswagen Jetta, the following table can be used to compare the 2003 Volkswagen Jetta with the Volkswagen Jetta from other model years. Note that the number of problems reported for the 2003 Jetta is 554 while the average number of problems reported for the 31 model years of the Volkswagen Jetta is 419.