Bmw 340i
Reliability, running costs, and MOT data across 6 years from 1,888 real MOT tests.
Avg Pass Rate
91%
Total Tests
1,888
Best Year
2021 (96%)
Years Covered
6
How reliable is the Bmw 340i?
Bmw 340i by Year
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About the Bmw 340i
The Bmw 340i has been tested 1,888 times in 2024 MOT data across 6 model years (2016 to 2021), with an average pass rate of 91%. 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 96% pass rate from 49 tests. The 2020 model has the lowest at 80%. With a 16 point spread, choosing the right year makes a big difference to reliability.
Reliability Trend
The BMW 340I has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.
Mileage Across Years
The oldest model in our data (2016) averages 59,892 miles, while the newest (2021) averages 21,253 miles.
Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.