MERCEDES B-CLASS (2017)
Running costs, common problems, and reliability data based on 9,693 real MOT tests in 2024.
MOT Pass Rate
88%
Total Tests (2024)
9,693
Avg Mileage
48,392 mi
Est. Annual Cost
£1,095
Is the 2017 MERCEDES B-CLASS reliable?
Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.
At 7 years old, 88% of MERCEDES B-CLASSs from 2017 passed their MOT first time in 2024. That's based on 9,693 tests across the UK. The average mileage at this age is 48,392 miles.
How does the 2017 MERCEDES B-CLASS compare?
Mileage Analysis
The average 2017 MERCEDES B-CLASS has 48,392 miles on the clock, which is in line with the expected 51,800 miles for a 7-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 2017 sits between the two at 88%.
How much does a 2017 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 2017 MERCEDES B-CLASS
The 2017 MERCEDES B-CLASS is a electric with a 0cc electric engine. 9,693 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2017, the average MOT pass rate is 87%, and this model beats that benchmark.
With an average of 48,392 miles at 7 years old, MERCEDES B-CLASS owners drive about as much as the UK average.
What does it cost to own a 2017 MERCEDES B-CLASS?
Total estimated annual running cost is £1,095 (£91/month), broken down as £500 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% 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 2017 MERCEDES B-CLASS
At 7 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 9,693 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2017 MERCEDES B-CLASS
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable electric cars with similar engines:
- VOLVO XC90 (2018) 89% pass rate (+1%) from 11,631 tests
- HYUNDAI KONA (2019) 92% pass rate (+4%) from 11,344 tests
- JAGUAR I-PACE (2019) 94% pass rate (+6%) from 10,198 tests
- SMART (MCC) FORTWO (2017) 88% pass rate (same) from 8,803 tests