21 problems have been reported for the 2011 Volvo C30. The following chart shows the 9 most common problems for 2011 Volvo C30. The number one most common problem is related to the vehicle's visibility with 7 problems. The second most common problem is related to the vehicle's equipment (3 problems).
| Problem Category | Number of Problems |
|---|---|
| Visibility | |
| Equipment | |
| Structure | |
| Suspension | |
| Steering | |
| Electrical System | |
| Wheel | |
| Engine And Engine Cooling | |
| Tire |
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 2011 Volvo C30 in the United States are 5,935 units [1]. If the total number of problems reported by Volvo C30 owners in the last 12 years is 21, and the age of the vehicle is 12, the PPMY index can then be calculated as
PPMY Index = 21 / 5,935 / 12 * 1000 = 0.29.
For more information, refer to this page: A study of reliability comparison across Volvo C30 model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2011 Volvo C30 in 2011.
| Service Year | Number of Problems |
|---|---|
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 |
When making the decision between buying a new or used Volvo C30, the following table can be used to compare the 2011 Volvo C30 with the Volvo C30 from other model years. Note that the number of problems reported for the 2011 C30 is 21 while the average number of problems reported for the 7 model years of the Volvo C30 is 7.