Is the 2015 BMW 5 SERIES reliable?

Excellent reliability. Very few MOT failures. 93% of BMW 5 SERIESs from 2015 passed their MOT first time in 2026, based on 135 tests. That's 11 points above the national average of 82%.

How much does a 2015 BMW 5 SERIES cost to run?

Estimated annual running cost is £1,557 (£130/month), including £1037 fuel, £265 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2015 BMW 5 SERIES?

The 2015 BMW 5 SERIES has a 93% MOT pass rate based on 135 tests in 2026. This ranks 111 out of 559 cars from 2015.

Which year BMW 5 SERIES is most reliable?

The 2023 BMW 5 SERIES has the highest MOT pass rate at 98%. The least reliable year is 1999 at 71%.

What is the average mileage for a 2015 BMW 5 SERIES?

The average mileage for a 2015 BMW 5 SERIES is 77,391 miles, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.

BMW 5 SERIES (2015)

Running costs, reliability data, and common problems from 135 real MOT tests.

Annual Cost

£1,557

£130/month

MOT Pass Rate

93%

Excellent

Road Tax

£265

Based on CC/year

Insurance

Grp 18-32

1800cc Diesel

Great Choice

93% pass rate, £1557/year to run. 11 points above average.

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Diesel1800cc11 years old135 tests77k miles avg

Annual Running Costs

Fuel (Diesel, 1800cc)

~48 mpg

£1,037

Road Tax

Based on 1800cc

£265

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,557

Per month£130/mo

Per week£30/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

93% MOT pass rate(Excellent)

0%National avg: 82%100%

Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the BMW brand average of 88%.

At 11 years old, 93% of BMW 5 SERIESs from 2015 passed their MOT first time in 2026. That's based on 135 tests across the UK. The average mileage at this age is 77,391 miles.

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How Does It Compare?

Rank among 2015 cars111th of 559(top 20%)

Rank among BMW models402th of 1,564(top 26%)

vs national average+11%(82% avg)

vs 2015 cars average+10%(83% avg)

vs BMW average+5%(88% avg)

Mileage Analysis

77,391

Average miles

81,400

Expected for age

The average 2015 BMW 5 SERIES has 77,391 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 2023 model with a 98% MOT pass rate, while the 1999 model has the lowest at 71%. The 2015 sits between the two at 93%.

BMW 5 SERIES by Year

Year	Pass Rate	Tests	Avg Mileage
2023	98%	185	24,552 mi
2022	96%	586	33,834 mi
2021	93%	4,081	35,046 mi
2020	92%	9,409	40,517 mi
2019	92%	33,766	52,218 mi
2018	91%	40,272	63,822 mi
2017	90%	28,884	73,845 mi
2016	91%	104	58,170 mi
2015	93%	135	77,391 mi
2014	88%	495	96,084 mi
2013	83%	12,106	116,962 mi
2012	83%	12,364	124,375 mi
2011	83%	2,348	129,743 mi
2010	83%	1,299	135,211 mi
2009	83%	1,296	149,453 mi
2008	83%	1,682	154,421 mi
2007	81%	1,827	159,927 mi
2006	80%	1,465	158,383 mi
2005	76%	866	156,443 mi
2004	78%	555	149,786 mi
2003	77%	437	139,654 mi
2002	78%	330	147,542 mi
2001	81%	217	138,008 mi
2000	75%	179	151,070 mi
1999	71%	224	143,099 mi
1998	80%	184	126,519 mi
1997	79%	94	129,696 mi
1996	78%	55	148,837 mi
1995	77%	60	147,066 mi
1994	84%	51	134,866 mi

Similar Cars to Consider

FORD FIESTA

2013 · 1399cc Diesel

£1,490/year

77%

-16%

VOLKSWAGEN GOLF

2017 · 1598cc Diesel

£1,350/year

91%

-2%

VAUXHALL ASTRA

2013 · 1700cc Diesel

£1,727/year

79%

-14%

MERCEDES A-CLASS

2017 · 1461cc Diesel

£1,500/year

88%

-5%

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About the 2015 BMW 5 SERIES

The 2015 BMW 5 SERIES is a premium with a 1800cc diesel engine. 135 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 20% of all 2015 cars for reliability.

With an average of 77,391 miles at 11 years old, BMW 5 SERIES owners drive about as much as the UK average.

2015 BMW 5 SERIES Fuel Costs

The 1800cc 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 5 SERIES?

Total estimated annual running cost is £1,557 (£130/month), broken down as £1037 fuel, £265 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

BMW 5 SERIES Reliability Trend

Newer BMW 5 SERIESs show better MOT pass rates than older ones, with an average improvement of 11 percentage points.

Buying a Used 2015 BMW 5 SERIES

At 11 years old, the BMW 5 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 2023 model has the highest pass rate at 98%.

Common Issues to Watch For

Based on the 2015 BMW 5 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.

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 5 SERIES stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
BMW 5 SERIES(2015)	93%	£1037	£265	Grp 18-32	£1557
FORD FIESTA(2013)	77%	£905	£30	Grp 8-20	£1490-£67
VOLKSWAGEN GOLF(2017)	91%	£905	£190	Grp 12-25	£1350-£207
VAUXHALL ASTRA(2013)	79%	£1037	£135	Grp 18-32	£1727+£170
MERCEDES A-CLASS(2017)	88%	£905	£190	Grp 12-25	£1500-£57

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.