361 problems have been reported for the 2015 Ford Fiesta. The following chart shows the 19 most common problems for 2015 Ford Fiesta. The number one most common problem is related to the vehicle's power train with 102 problems. The second most common problem is related to the vehicle's engine and engine cooling (74 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 2015 Ford Fiesta in the United States are 70,212 units [1]. If the total number of problems reported by Ford Fiesta owners in the last 11 years is 361, and the age of the vehicle is 11, the PPMY index can then be calculated as
PPMY Index = 361 / 70,212 / 11 * 1000 = 0.47.
For more information, refer to this page: A study of reliability comparison across Ford Fiesta model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2015 Ford Fiesta in 2015.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 |
When making the decision between buying a new or used Ford Fiesta, the following table can be used to compare the 2015 Ford Fiesta with the Ford Fiesta from other model years. Note that the number of problems reported for the 2015 Fiesta is 361 while the average number of problems reported for the 11 model years of the Ford Fiesta is 389.
| Model Year | Number of Problems |
|---|---|
| 2019 Fiesta | |
| 2018 Fiesta | |
| 2017 Fiesta | |
| 2016 Fiesta | |
| 2015 Fiesta | |
| 2014 Fiesta | |
| 2013 Fiesta | |
| 2012 Fiesta | |
| 2011 Fiesta | |
| 2002 Fiesta | |
| 2001 Fiesta |