BMW 840I Auto
Reliability, estimated running costs, and MOT data across 3 model years from 5,276 MOT tests in 2024.
Avg Pass Rate
89%
Total Tests
5,276
Highest Pass Rate
2020 (93%)
Years Covered
3
About the BMW 840I Auto
The BMW 840I Auto was MOT tested 5,276 times in 2024 (DVSA data, retests included) across 3 model years (2019 to 2021), with an average pass rate of 89%. That's comfortably above the average of 82% across all models in our data. Our records list petrol versions.
Best and Worst Years
Of the years with at least 100 tests, the 2020 model has the highest pass rate at 93% from 4,056 tests. The 2021 model has the lowest at 85%. The 8 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.
Reliability Trend
The BMW 840I Auto has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.
Mileage Across Years
The oldest model in our data (2019) averages 35,477 miles, while the newest (2021) averages 25,806 miles.
Estimated Running Costs
Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.
Full 2021 detailsHow reliable is the BMW 840I Auto?
BMW 840I Auto by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the BMW 840I Auto
Is the BMW 840I Auto reliable?
Across its 3 model years in our data (2019 to 2021), the BMW 840I Auto averages an 89% MOT pass rate, from 5,276 tests (DVSA MOT data for tests in 2024, retests included). That's 7 points above the average of 82% across all models in the same data. The 2020 model has the highest pass rate of the years with at least 100 tests, at 93%.
Which year BMW 840I Auto has the best MOT pass rate?
Of the years with at least 100 tests, the 2020 BMW 840I Auto has the highest MOT pass rate at 93%, while the 2021 model has the lowest at 85%, a 8 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
Are newer BMW 840I Autos more reliable?
The BMW 840I Auto has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.
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