How much does a 2015 BMW 4 SERIES cost to run?

Estimated annual running cost is £1,707 (£142/month), including £1037 fuel, £265 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2015 BMW 4 SERIES?

The 2015 BMW 4 SERIES has a 87% MOT pass rate based on 68 tests in 2026. This ranks 260 out of 559 cars from 2015.

Which year BMW 4 SERIES is most reliable?

The 2018 BMW 4 SERIES has the highest MOT pass rate at 96%. The least reliable year is 2016 at 85%.

What is the average mileage for a 2015 BMW 4 SERIES?

The average mileage for a 2015 BMW 4 SERIES is 80,358 miles, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.

BMW 4 SERIES (2015)

Q: Is the 2015 BMW 4 SERIES reliable?

Good reliability. Occasional issues but generally solid. 87% of BMW 4 SERIESs from 2015 passed their MOT first time in 2026, based on 68 tests. That's 5 points above the national average of 82%.

Running costs, reliability data, and common problems from 68 real MOT tests.

Annual Cost

£1,707

£142/month

MOT Pass Rate

87%

Good

Road Tax

£265

Based on CC/year

Insurance

Grp 18-32

1995cc Diesel

Solid Option

87% pass rate, £1707/year to run. 5 points above average.

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Diesel1995cc11 years old68 tests80k miles avg

Annual Running Costs

Fuel (Diesel, 1995cc)

~48 mpg

£1,037

Road Tax

Based on 1995cc

£265

MOT Test

£55

Predicted Repairs

£350

Total per year£1,707

Per month£142/mo

Per week£33/wk

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.

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Reliability Verdict

87% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.

At 11 years old, 87% of BMW 4 SERIESs from 2015 passed their MOT first time in 2026. That's based on 68 tests across the UK. The average mileage at this age is 80,358 miles.

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How Does It Compare?

Rank among 2015 cars260th of 559(top 47%)

Rank among BMW models1039th of 1,564(top 66%)

vs national average+5%(82% avg)

vs 2015 cars average+4%(83% avg)

vs BMW average-1%(88% avg)

Mileage Analysis

80,358

Average miles

81,400

Expected for age

The average 2015 BMW 4 SERIES has 80,358 miles on the clock, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2018 model with a 96% MOT pass rate, while the 2016 model has the lowest at 85%. The 2015 sits between the two at 87%.

BMW 4 SERIES by Year

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

Similar Cars to Consider

VOLKSWAGEN GOLF

2017 · 1598cc Diesel

£1,350/year

91%

+4%

VAUXHALL ASTRA

2013 · 1700cc Diesel

£1,727/year

79%

-8%

AUDI A3

2015 · 1598cc Diesel

£1,445/year

88%

+1%

FORD TRANSIT

2017 · 1995cc Diesel

£1,632/year

81%

-6%

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About the 2015 BMW 4 SERIES

The 2015 BMW 4 SERIES is a premium with a 1995cc diesel engine. 68 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2015, the average MOT pass rate is 83%, and this model beats that benchmark.

With an average of 80,358 miles at 11 years old, BMW 4 SERIES owners drive about as much as the UK average.

2015 BMW 4 SERIES Fuel Costs

The 1995cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2015 BMW 4 SERIES?

Total estimated annual running cost is £1,707 (£142/month), broken down as £1037 fuel, £265 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 87% pass rate. Keeping on top of servicing will help avoid surprises.

BMW 4 SERIES Reliability Trend

Newer BMW 4 SERIESs show better MOT pass rates than older ones, with an average improvement of 5 percentage points.

Buying a Used 2015 BMW 4 SERIES

At 11 years old, the BMW 4 SERIES is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2018 model has the highest pass rate at 96%. Note: with only 68 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

Based on the 2015 BMW 4 SERIES's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Medium risk

With an average of 80k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2015 BMW 4 SERIES stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BMW 4 SERIES(2015)	87%	£1037	£265	Grp 18-32	£1707
VOLKSWAGEN GOLF(2017)	91%	£905	£190	Grp 12-25	£1350-£357
VAUXHALL ASTRA(2013)	79%	£1037	£135	Grp 18-32	£1727+£20
AUDI A3(2015)	88%	£905	£135	Grp 12-25	£1445-£262
FORD TRANSIT(2017)	81%	£1037	£190	Grp 18-32	£1632-£75

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.