Bmw 420i m sport auto
Reliability, running costs, and MOT data across 3 years from 8,054 real MOT tests.
Avg Pass Rate
95%
Total Tests
8,054
Best Year
2022 (96%)
Years Covered
3
About the Bmw 420i m sport auto
The Bmw 420i m sport auto has been tested 8,054 times in 2026 MOT data across 3 model years (2020 to 2022), with an average pass rate of 95%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.
Best and Worst Years
The 2022 model is the most reliable with a 96% pass rate from 497 tests. The 2021 model has the lowest at 93%. With just a 3 point spread, the 420i m sport auto is consistently reliable regardless of year.
Reliability Trend
The BMW 420I M SPORT AUTO has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Mileage Across Years
The oldest model in our data (2020) averages 28,653 miles, while the newest (2022) averages 20,536 miles.
Compared to the Bmw brand average of 88%, the 420i m sport auto performs 7 points better, making it one of the more reliable options in the Bmw range.
Estimated Running Costs
Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.
Full 2022 detailsHow reliable is the Bmw 420i m sport auto?
Bmw 420i m sport auto by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
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