BMW 4 Series

Reliability, estimated running costs, and MOT data across 7 model years from 3,242 MOT tests in 2024.

Avg Pass Rate

90%

Total Tests

3,242

Highest Pass Rate

2018 (96%)

Years Covered

About the BMW 4 Series

The BMW 4 Series was MOT tested 3,242 times in 2024 (DVSA data, retests included) across 7 model years (2013 to 2019), with an average pass rate of 90%. That's comfortably 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 2018 model has the highest pass rate at 96% from 405 tests. The 2013 model has the lowest at 86%. The 10 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 4 Seriess pass their MOT more often than older ones, by 8 percentage points on average, which is mostly down to age and wear.

Mileage Across Years

The oldest model in our data (2013) averages 97,268 miles, while the newest (2019) averages 22,960 miles.

Estimated Running Costs

Fuel (Petrol, 2979cc)

£1,958

Road Tax

£200

MOT Test

£55

Predicted Repairs

£200

Total per year£2,413

Per month£201/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 4 Series?

vs average of all models+8% (82% avg)

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

Best to worst year spread10 percentage points

Reliability trendImproving over years

BMW 4 Series by Year

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

Year	Pass Rate	Tests	Avg Mileage
2019	96%	124	22,960 mi
2018	96%	405	25,751 mi
2017	92%	129	41,190 mi
2016	85%	61	60,606 mi
2015	87%	68	80,358 mi
2014	88%	738	86,899 mi
2013	86%	1,717	97,268 mi

Questions about the BMW 4 Series

Is the BMW 4 Series reliable?

Across its 7 model years in our data (2013 to 2019), the BMW 4 Series averages a 90% MOT pass rate, from 3,242 tests (DVSA MOT data for tests in 2024, retests included). That's 8 points above the average of 82% across all models in the same data. The 2018 model has the highest pass rate of the years with at least 100 tests, at 96%.

Which year BMW 4 Series has the best MOT pass rate?

Of the years with at least 100 tests, the 2018 BMW 4 Series has the highest MOT pass rate at 96%, while the 2013 model has the lowest at 86%, a 10 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.