Smart Smart Fortwo (451)
Production Years: 2007 - 2014
The 451 generation moved to a 1.0L Mitsubishi-sourced engine (naturally aspirated or turbo). It is significantly more robust than the 450 but introduced its own unique issues, particularly with the MHD system.
Smart Fortwo (451) Reliability & Common Faults
Detailed guide to known problems, estimated repair costs, severity ratings, and buying tips for the Smart Smart Fortwo (451).
View Smart Fortwo (451) ProblemsBrowse by Production Year
Select a specific year to view detailed history reports and reliability data for Smart Fortwo (451) models of that age.