2019 Mercedes-Benz A-Class MOT pass rate, common failures & what to check
In 2025, 85.3% of Mercedes-Benz A-Class cars first used in 2019 passed their MOT first time, against 83.5% for all cars first used in 2019. Across 154,928 A-Class first tests from 2023 to 2025, the most common failure areas were tyres, brakes and seat belts and airbag systems.
This page analyses first MOT tests for Mercedes-Benz A-Class cars first used in 2019 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.
Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026
How the 2019 Mercedes-Benz A-Class MOT pass rate has changed
Share of first tests passed in each year, A-Class cars first used in 2019 against all cars first used in 2019 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the A-Class figure was 1.8 points higher.
View this chart as a table
| Test year | 2019 A-Class | All cars first used 2019 | A-Class first tests |
|---|---|---|---|
| 2021 | 91.8% | 89.2% | 2,069 |
| 2022 | 88.1% | 87.8% | 53,195 |
| 2023 | 86.9% | 86.2% | 52,177 |
| 2024 | 85.8% | 84.9% | 51,575 |
| 2025 | 85.3% | 83.5% | 51,176 |
Common 2019 Mercedes-Benz A-Class MOT failures
Share of the 21,637 failed first tests (2023–2025) with at least one failure in each area. A test can fail in more than one area, so the shares add up to more than 100%.
Most common failure items
| DVSA failure item | Share of failed first tests | Tests |
|---|---|---|
| Tread depth: below requirements of 1.6mm | 16.4% | 3,555 |
| SRS malfunction indicator lamp: warning lamp indicates a fault | 15.6% | 3,371 |
| Brake pads: less than 1.5 mm thick | 12.7% | 2,739 |
| Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords | 12.6% | 2,735 |
| Tyre condition: has ply or cords exposed | 7.6% | 1,638 |
Item names are DVSA’s own wording. 2023–2025 combined.
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What to check on a 2019 Mercedes-Benz A-Class before buying
The three areas where failed first tests most often had a fault, 2023–2025.
- Tyres. Worth checking the tread depth across the whole width of each tyre, and the sidewalls for cuts, cracks and bulges.
- Brakes. Worth looking at the discs and pads through the wheel spokes for scoring and a worn lip, and noticing on the test drive whether the car pulls to one side or the pedal feels long.
- Seat belts and airbags. Worth pulling each seat belt out fully and letting it retract, and checking that the airbag warning light goes out after starting.
Common 2019 Mercedes-Benz A-Class MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2019 A-Class cars, as a share of all 154,928 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Tread depth: worn close to legal limit/worn on edge | 16.1% | 25,000 |
| Brake pads: wearing thin | 8.9% | 13,849 |
| Tyre condition: slightly damaged/cracking or perishing | 7.5% | 11,640 |
| Brake discs: worn, but not excessively | 3.5% | 5,417 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 3.5% | 5,354 |
Questions about the 2019 Mercedes-Benz A-Class MOT
What is the MOT pass rate of a 2019 Mercedes-Benz A-Class?
In 2025, 85.3% of A-Class cars first used in 2019 passed their MOT first time, against 83.5% for all cars first used in 2019. A car fixed during the test counts as a fail.
What does a 2019 A-Class most often fail its MOT on?
Tyres (in 42.2% of failed first tests, 2023–2025), brakes (18.5%) and seat belts and airbag systems (16.9%). The single most common item was “Tread depth: below requirements of 1.6mm” (16.4%).
How often does a 2019 Mercedes-Benz A-Class fail its MOT?
In 2025, 14.7% of first tests on A-Class cars first used in 2019 did not pass first time: 12.4% failed, and a further 2.3% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 21,637 of 154,928 first tests did not pass first time.
What are the most common 2019 Mercedes-Benz A-Class MOT advisories?
“Tread depth: worn close to legal limit/worn on edge” (on 16.1% of first tests, 2023–2025), “Brake pads: wearing thin” (8.9%), “Tyre condition: slightly damaged/cracking or perishing” (7.5%), “Brake discs: worn, but not excessively” (3.5%) and “Brake discs: worn, pitted or scored, but not seriously weakened” (3.5%).
Is a 2019 Mercedes-Benz A-Class reliable?
An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 91.8% in 2021 to 85.3% in 2025. For one particular car, its own MOT history matters more than the average.
Other cars first used in 2019
The most-tested cars from the same year. Each page uses the same method.
2019 Ford Fiesta MOT statistics · 2019 Volkswagen Golf MOT statistics · 2019 Ford Focus MOT statistics · 2019 Vauxhall Corsa MOT statistics · 2019 MINI Hatch MOT statistics
Checking a specific 2019 A-Class?
The numbers above cover every A-Class first used in 2019 and tested in Great Britain. Our free check shows the actual MOT history, mileage record and tax status of the one you are looking at.
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