How much does a 2015 MERCEDES B-CLASS cost to run?

Estimated annual running cost is £1,100 (£92/month), including £500 fuel, £195 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2015 MERCEDES B-CLASS?

The 2015 MERCEDES B-CLASS has a 86% MOT pass rate based on 9,871 tests in 2026. This ranks 276 out of 559 cars from 2015.

Which year MERCEDES B-CLASS is most reliable?

The 2019 MERCEDES B-CLASS has the highest MOT pass rate at 93%. The least reliable year is 2006 at 71%.

MERCEDES B-CLASS (2015)

Q: Is the 2015 MERCEDES B-CLASS reliable?

Good reliability. Occasional issues but generally solid. 86% of MERCEDES B-CLASSs from 2015 passed their MOT first time in 2026, based on 9,871 tests. That's 4 points above the national average of 82%.

Q: What is the average mileage for a 2015 MERCEDES B-CLASS?

The average mileage for a 2015 MERCEDES B-CLASS is 64,066 miles, which is below the expected 81,400 miles for a 11-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 9,871 real MOT tests.

Annual Cost

£1,100

£92/month

MOT Pass Rate

86%

Good

Road Tax

£195

Based on CC/year

Insurance

Grp 1-8

0cc Electric

Solid Option

86% pass rate, £1100/year to run. Close to the national average.

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Electric0cc11 years old9,871 tests64k miles avg

Annual Running Costs

Fuel (Electric, 0cc)

£500

Road Tax

Based on 0cc

£195

MOT Test

£55

Predicted Repairs

£350

Total per year£1,100

Per month£92/mo

Per week£21/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

86% 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, 86% of MERCEDES B-CLASSs from 2015 passed their MOT first time in 2026. That's based on 9,871 tests across the UK. The average mileage at this age is 64,066 miles.

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How Does It Compare?

Rank among 2015 cars276th of 559(top 49%)

Rank among MERCEDES models852th of 1,408(top 61%)

vs national average+4%(82% avg)

vs 2015 cars average+3%(83% avg)

vs MERCEDES average-1%(87% avg)

Mileage Analysis

64,066

Average miles

81,400

Expected for age

The average 2015 MERCEDES B-CLASS has 64,066 miles on the clock, which is below the expected 81,400 miles for a 11-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.

Best Year to Buy?

The most reliable year is the 2019 model with a 93% MOT pass rate, while the 2006 model has the lowest at 71%. The 2015 sits between the two at 86%.

MERCEDES B-CLASS by Year

Year	Pass Rate	Tests	Avg Mileage
2020	98%	47	23,364 mi
2019	93%	912	29,781 mi
2018	90%	6,729	39,021 mi
2017	88%	9,693	48,392 mi
2016	87%	9,657	55,381 mi
2015	86%	9,871	64,066 mi
2014	83%	15,382	72,344 mi
2013	82%	13,421	78,118 mi
2012	81%	11,092	83,827 mi
2011	73%	6,779	84,302 mi
2010	74%	8,819	90,612 mi
2009	74%	8,277	95,335 mi
2008	71%	6,925	100,673 mi
2007	72%	5,184	101,539 mi
2006	71%	4,235	103,535 mi
2005	73%	805	105,799 mi

Similar Cars to Consider

SMART (MCC) FORTWO

2017 · 0cc Electric

£1,095/year

88%

+2%

NISSAN NV200

2015 · 0cc Electric

£1,085/year

74%

-12%

BMW I3

2017 · 0cc Electric

£945/year

90%

+4%

TESLA MODEL X

2017 · 0cc Electric

£1,095/year

86%

same

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About the 2015 MERCEDES B-CLASS

The 2015 MERCEDES B-CLASS is a electric with a 0cc electric engine. 9,871 of these vehicles were MOT tested in 2026, making it a reasonably common sight 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 64,066 miles at 11 years old, MERCEDES B-CLASS owners tend to use this car less than the typical driver.

What does it cost to own a 2015 MERCEDES B-CLASS?

Total estimated annual running cost is £1,100 (£92/month), broken down as £500 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 86% pass rate. Keeping on top of servicing will help avoid surprises.

MERCEDES B-CLASS Reliability Trend

Newer MERCEDES B-CLASSs show better MOT pass rates than older ones, with an average improvement of 14 percentage points.

Buying a Used 2015 MERCEDES B-CLASS

At 11 years old, the MERCEDES B-CLASS 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 2019 model has the highest pass rate at 93%. With 9,871 MOT tests in our data, there's strong statistical confidence in these figures.

Common Issues to Watch For

Based on the 2015 MERCEDES B-CLASS's fuel type, age, and engine size, these are the most likely problem areas to check.

Battery Degradation

Watch out

After 11 years, expect some battery capacity loss. Check the battery health report for state of health (SoH). Below 80% significantly reduces range.

Charging Port

Medium risk

Charging connectors and ports can develop issues from regular use. Check both AC and DC charging work correctly before purchasing.

Software Updates

Medium risk

Older EVs may miss out on manufacturer software updates that improve range and features. Check the infotainment system is up to date.

12V Auxiliary Battery

Medium risk

EVs still have a standard 12V battery for accessories. These drain faster than in petrol cars and can leave you stranded if flat. Replacement is £100-£200.

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 MERCEDES B-CLASS stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MERCEDES B-CLASS(2015)	86%	£500	£195	Grp 1-8	£1100
SMART (MCC) FORTWO(2017)	88%	£500	£190	Grp 1-8	£1095-£5
NISSAN NV200(2015)	74%	£500	£30	Grp 1-8	£1085-£15
BMW I3(2017)	90%	£500	£190	Grp 1-8	£945-£155
TESLA MODEL X(2017)	86%	£500	£190	Grp 1-8	£1095-£5

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.