132 problems have been reported for the 2009 Smart Fortwo. The following chart shows the 17 most common problems for 2009 Smart Fortwo. The number one most common problem is related to the vehicle's engine and engine cooling with 28 problems. The second most common problem is related to the vehicle's power train (24 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 2009 Smart Fortwo in the United States are 20,785 units [1]. If the total number of problems reported by Smart Fortwo owners in the last 16 years is 132, and the age of the vehicle is 16, the PPMY index can then be calculated as
PPMY Index = 132 / 20,785 / 16 * 1000 = 0.40.
For more information, refer to this page: A study of reliability comparison across Smart Fortwo model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2009 Smart Fortwo in 2009.
| Service Year | Number of Problems |
|---|---|
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 |
When making the decision between buying a new or used Smart Fortwo, the following table can be used to compare the 2009 Smart Fortwo with the Smart Fortwo from other model years. Note that the number of problems reported for the 2009 Fortwo is 132 while the average number of problems reported for the 13 model years of the Smart Fortwo is 35.
| Model Year | Number of Problems |
|---|---|
| 2019 Fortwo | |
| 2018 Fortwo | |
| 2017 Fortwo | |
| 2016 Fortwo | |
| 2015 Fortwo | |
| 2014 Fortwo | |
| 2013 Fortwo | |
| 2012 Fortwo | |
| 2011 Fortwo | |
| 2010 Fortwo | |
| 2009 Fortwo | |
| 2008 Fortwo | |
| 2005 Fortwo |