Smart Fortwo - Problems, Statistics, and Analysis

Smart Fortwo owners have reported a total of 333 problems for their cars built in the 11 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the Smart Fortwo. The 2008 Smart Fortwo cars have the most problems reported (137 problems).

Table 1. Total number of problems by model year for Smart Fortwo

  Common problems of Smart Fortwo

The following chart shows the 22 most common problems for Smart Fortwo cars. The number one most common problem is related to the vehicle's engine and engine cooling (62 problems). The second most common problem is related to the vehicle's power train (53 problems).

Table 2. Common problems of Smart Fortwo

Problem Category Number of Problems
  Engine And Engine Cooling
62
  Power Train
53
  Electrical System
43
  Equipment
42
  Seat Belt
23
  Structure
17
  Other Fuel System
17
  Service Brakes
14
  Air Bag
11
  Wheel
8
   
  Visibility
8
  Unknown Or Other
6
  Exterior Lighting
5
  Gasoline Fuel System
4
  Suspension
4
  Vehicle Speed Control
4
  Latches/locks/linkage
3
  Steering
3
  Tire
2
  Seats
2
  Electronic Stability Control
1
  Traction Control System
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Smart Fortwo of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across Fortwo model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.

    PPMY = P / S / Y * 1000,

where P = total problems reported during the life of a Smart Fortwo model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).

The results are shown in Table 3.

Table 3. Use PPMY Index to Compare Reliability Across Fortwo Model Years

Fortwo
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2017 52,1082    
1.19
  2016 147,1533    
0.65
  2015 37,7924    
0.10
  2014 65,4155    
0.22
  2013 2013,4106    
0.25
  2012 105,0597    
0.28
  2011 223,1798    
0.87
  2010 53,2559    
0.17
  2009 10520,78710    
0.51
  2008 13722,08811    
0.56

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Smart Fortwo is to use the total number of problems reported during the vehicle's first year in service, as shown in the Table 4.

Table 4. Number of problems in vehicle's; first service year

Model YearProblems Reported
  2017 Fortwo
2
  2016 Fortwo
6
  2014 Fortwo
3
  2013 Fortwo
6
  2012 Fortwo
3
  2009 Fortwo
2
  2008 Fortwo
12


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