Is the Smart Forfour passion semi-auto reliable?

The Smart Forfour passion semi-auto has an average MOT pass rate of 76% across 4 years, based on 380 tests in 2026. That's 6 points below the national average of 82%. The most reliable year is 2007 with a 80% pass rate.

Which year Smart Forfour passion semi-auto is best?

The 2007 Smart Forfour passion semi-auto has the highest MOT pass rate at 80%, while the 2005 model has the lowest at 70%. There's a 10 percentage point spread between the best and worst years.

Smart Forfour passion semi-auto

Reliability, running costs, and MOT data across 4 years from 380 real MOT tests.

Avg Pass Rate

76%

Total Tests

380

Best Year

2007 (80%)

Years Covered

About the Smart Forfour passion semi-auto

The Smart Forfour passion semi-auto has been tested 380 times in 2026 MOT data across 4 model years (2004 to 2007), with an average pass rate of 76%. That's 6 points below the national average of 82%, so check the year-by-year data carefully before buying. Available as petrol.

Best and Worst Years

The 2007 model is the most reliable with a 80% pass rate from 87 tests. The 2005 model has the lowest at 70%. The 10 point spread between years means reliability varies somewhat, but no year is dramatically different.

Reliability Trend

Newer SMART FORFOUR PASSION SEMI-AUTOs show better MOT pass rates than older ones, with an average improvement of 5 percentage points.

Mileage Across Years

The oldest model in our data (2004) averages 105,906 miles, while the newest (2007) averages 118,079 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Compared to the Smart brand average of 80%, the Forfour passion semi-auto is 4 points lower, placing it among the less reliable Smart models.