Is the Ford Fiesta st edition turbo reliable?

The Ford Fiesta st edition turbo has an average MOT pass rate of 94% across 2 years, based on 607 tests in 2026. That's 12 points above the national average of 82%. The most reliable year is 2021 with a 94% pass rate.

Which year Ford Fiesta st edition turbo is best?

The 2021 Ford Fiesta st edition turbo has the highest MOT pass rate at 94%, while the 2021 model has the lowest at 94%. There's a 0 percentage point spread between the best and worst years.

Ford Fiesta st edition turbo

Reliability, running costs, and MOT data across 2 years from 607 real MOT tests.

Avg Pass Rate

94%

Total Tests

607

Best Year

2021 (94%)

Years Covered

About the Ford Fiesta st edition turbo

The Ford Fiesta st edition turbo has been tested 607 times in 2026 MOT data across 2 model years (2020 to 2021), with an average pass rate of 94%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.

Best and Worst Years

The 2021 model is the most reliable with a 94% pass rate from 484 tests. The 2021 model has the lowest at 94%. With just a 0 point spread, the Fiesta st edition turbo is consistently reliable regardless of year.

Mileage Across Years

The oldest model in our data (2020) averages 25,603 miles, while the newest (2021) averages 19,770 miles.

Compared to the Ford brand average of 85%, the Fiesta st edition turbo performs 9 points better, making it one of the more reliable options in the Ford range.