CarCostCheck

Bmw 840i auto

Reliability, running costs, and MOT data across 3 years from 5,276 real MOT tests.

Avg Pass Rate

89%

Total Tests

5,276

Best Year

2020 (93%)

Years Covered

3

About the Bmw 840i auto

The Bmw 840i auto has been tested 5,276 times in 2026 MOT data across 3 model years (2019 to 2021), with an average pass rate of 89%. That's comfortably above the national average of 82%, making it a reliable choice. Available as petrol.

Best and Worst Years

The 2020 model is the most reliable with a 93% pass rate from 4,056 tests. The 2021 model has the lowest at 85%. The 8 point spread between years means reliability varies somewhat, but no year is dramatically different.

Reliability Trend

The BMW 840I 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 (2019) averages 35,477 miles, while the newest (2021) averages 25,806 miles.

Estimated Running Costs

Fuel (Petrol, 2998cc)
£1,592
Road Tax
£195
MOT Test
£55
Predicted Repairs
£350
Total per year£2,192
Per month£183/mo

Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.

Full 2021 details

How reliable is the Bmw 840i auto?

vs national average+7% (82% avg)
vs Bmw brand average+1% (88% avg)
Best to worst year spread8 percentage points
Reliability trendStable over years

Bmw 840i auto by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

YearPass RateTestsAvg Mileage
202185%41925,806 mi
202093%4,05630,790 mi
201990%80135,477 mi

Bmw 840i auto Guides & Articles

Checking a specific Bmw 840i auto?

Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.

GB

Free instant check using official DVSA and DVLA data

GB