Mercedes-Benz B200 — MOT pass rate & failures
The Mercedes-Benz B200 recorded a 92.9% MOT pass rate across 1,055 tests in this dataset (model years 2006–2023), with tyres, visibility and lighting & signalling its most common failure areas. Its 7.1% fail rate is lower than the 18.2% average across all Mercedes-Benz B-Class versions.
How it compares
By model year
| Year | Tests | Pass rate | Fail rate |
|---|---|---|---|
| 2019 | 97 | 97.9% | 2.1% |
| 2021 | 285 | 92.6% | 7.4% |
| 2022 | 567 | 93.0% | 7.0% |
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.0% | 42 |
| 2 | Visibility | 1.8% | 19 |
| 3 | Lighting & signalling | 1.7% | 18 |
| 4 | Suspension | 0.9% | 9 |
| 5 | Body, structure & corrosion | 0.7% | 7 |
| 6 | Emissions & environmental | 0.7% | 7 |
| 7 | Brakes | 0.6% | 6 |
| 8 | Seat belts & restraints | 0.6% | 6 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Wipers | 14 |
| 2 | Headlamp aim | 10 |
| 3 | Washers | 7 |
| 4 | Headlamp | 5 |
| 5 | Ball joint | 5 |
| 6 | Registration plates | 5 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 15.3% | 161 |
| 2 | Brakes | 4.6% | 49 |
| 3 | Other defects | 3.9% | 41 |
| 4 | Visibility | 3.9% | 41 |
| 5 | Suspension | 1.4% | 15 |
| 6 | Lighting & signalling | 0.9% | 10 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 774 | 5.7% |
| 30-60k | 219 | 8.7% |
| 60-90k | 40 | 20.0% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2022 | 38 | 2.6% |
| 2023 | 50 | 2.0% |
| 2024 | 237 | 7.2% |
| 2025 | 717 | 7.2% |
What to check before buying a Mercedes-Benz B200
Focus on the areas it most often fails on — and remember MOT data covers testable defects only, not engine or gearbox health.
- Tyres (4.0% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Visibility (1.8% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Lighting & signalling (1.7% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How reliable is the Mercedes-Benz B200 at MOT time?
92.9% of the 1,055 Mercedes-Benz B200 MOT tests in this dataset passed — a 7.1% fail rate, better than the 18.2% average across all B-Class versions.
What is the most common MOT failure on a Mercedes-Benz B200?
Tyres, recorded in 4.0% of tests, followed by visibility (1.8%).
Does the B200 get worse with mileage?
Its MOT fail rate rises from 5.7% in the 0-30k band to 20.0% in the 60-90k band.
Methodology & source. Based on 1,055 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-06. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.