MERCEDES B-CLASS (2015)
Running costs, common problems, and reliability data based on 9,871 real MOT tests in 2024.
MOT Pass Rate
86%
Total Tests (2024)
9,871
Avg Mileage
64,066 mi
Est. Annual Cost
£935
Is the 2015 MERCEDES B-CLASS reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 9 years old, 86% of MERCEDES B-CLASSs from 2015 passed their MOT first time in 2024. That's based on 9,871 tests across the UK. The average mileage at this age is 64,066 miles.
How does the 2015 MERCEDES B-CLASS compare?
Mileage Analysis
The average 2015 MERCEDES B-CLASS has 64,066 miles on the clock, which is in line with the expected 66,600 miles for a 9-year-old car, suggesting normal everyday use.
Best year to buy a MERCEDES B-CLASS?
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%.
How much does a 2015 MERCEDES B-CLASS cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
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 |
Checking a specific MERCEDES B-CLASS?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
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 2024, 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 9 years old, MERCEDES B-CLASS owners drive about as much as the UK average.
What does it cost to own a 2015 MERCEDES B-CLASS?
Total estimated annual running cost is £935 (£78/month), broken down as £500 fuel, £30 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 9 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. 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.
Alternatives to the 2015 MERCEDES B-CLASS
If reliability is your priority, there are 2 similar cars with a higher MOT pass rate. Here are comparable electric cars with similar engines:
- SMART (MCC) FORTWO (2017) 88% pass rate (+2%) from 8,803 tests
- NISSAN NV200 (2015) 74% pass rate (-12%) from 7,435 tests
- BMW I3 (2017) 90% pass rate (+4%) from 5,683 tests
- TESLA MODEL X (2017) 86% pass rate (same) from 5,023 tests