BMW 840

Reliability, estimated running costs, and MOT data across 7 model years from 2,177 MOT tests in 2024.

Avg Pass Rate

86%

Total Tests

2,177

Highest Pass Rate

1997 (89%)

Years Covered

About the BMW 840

The BMW 840 was MOT tested 2,177 times in 2024 (DVSA data, retests included) across 7 model years (1994 to 2019), with an average pass rate of 86%. That's slightly above the average of 82% across all models in our data. Our records list petrol and diesel versions.

Best and Worst Years

Of the years with at least 100 tests, the 1997 model has the highest pass rate at 89% from 567 tests. The 1994 model has the lowest at 74%. The 15 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

Newer BMW 840s pass their MOT more often than older ones, by 10 percentage points on average, which is mostly down to age and wear.

Mileage Across Years

The oldest model in our data (1994) averages 110,577 miles, while the newest (2019) averages 42,498 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Estimated Running Costs

Fuel (Diesel, 2993cc)

£1,676

Road Tax

£200

MOT Test

£55

Predicted Repairs

£200

Total per year£2,131

Per month£178/mo

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 2019 details

How reliable is the BMW 840?

vs average of all models+4% (82% avg)

vs BMW brand average-2% (88% avg)

Best to worst year spread15 percentage points

Reliability trendImproving over years

BMW 840 by Year

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

Year	Pass Rate	Tests	Avg Mileage
2019	100%	52	42,498 mi
1999	89%	309	100,587 mi
1998	87%	417	98,779 mi
1997	89%	567	114,610 mi
1996	82%	266	110,739 mi
1995	79%	384	120,572 mi
1994	74%	182	110,577 mi

Questions about the BMW 840

Is the BMW 840 reliable?

Across its 7 model years in our data (1994 to 2019), the BMW 840 averages an 86% MOT pass rate, from 2,177 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points above the average of 82% across all models in the same data. The 1997 model has the highest pass rate of the years with at least 100 tests, at 89%.

Which year BMW 840 has the best MOT pass rate?

Of the years with at least 100 tests, the 1997 BMW 840 has the highest MOT pass rate at 89%, while the 1994 model has the lowest at 74%, a 15 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.