MOT comparison

BMW 1 Series F40 vs Mercedes-Benz A-Class W177

How the BMW 1 Series F40 (3rd Gen) (2019–2026) and the Mercedes-Benz A-Class W177 (4th Gen) (2018–2026) do at their MOTs, compared at the same mileage so a high-mileage car is never measured against a low-mileage one.

BMW 1 Series F40 (3rd Gen)

165,336

MOT tests compared · built 2019–2026

Passes more often in 6 of 9 mileage bands

Mercedes-Benz A-Class W177 (4th Gen)

417,169

MOT tests compared · built 2018–2026

Passes more often in 0 of 9 mileage bands

MOT pass rate by mileage

Share of MOTs passed first time, at the mileage recorded at the test.

BMW 1 Series F40 Mercedes-Benz A-Class W177

Under 10,000 miles 95.4% vs 94.5%

6,791 and 14,548 MOTs

10,000–20,000 miles 93.0% vs 92.3%

31,829 and 66,185 MOTs

20,000–30,000 miles 90.7% vs 89.6%

44,584 and 96,298 MOTs

30,000–40,000 miles 88.8% vs 86.7%

35,490 and 87,539 MOTs

40,000–50,000 miles 87.2% vs 84.8%

22,561 and 64,501 MOTs

50,000–60,000 miles 85.7% vs 83.8%

12,364 and 42,073 MOTs

60,000–70,000 miles 84.6% vs 82.8%

6,571 and 24,825 MOTs

70,000–80,000 miles 83.2% vs 83.0%

3,343 and 13,726 MOTs

80,000–90,000 miles 83.7% vs 80.7%

1,803 and 7,474 MOTs

Parts that fail more often

Only differences that hold across at least half of the mileage bands we could compare, and that are far too large to be chance, are listed. How we decide

BMW 1 Series F40 fails more often on

Nothing that stands out consistently against the Mercedes-Benz A-Class W177.

Mercedes-Benz A-Class W177 fails more often on

Supplementary restraint system (SRS)

Fails over 20 times as often as the BMW 1 Series F40: 1.3% of MOTs against 0.05%.

In 9 of 9 mileage bands · Dashboard Warning Lights

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These are differences in real MOT results, not engineering verdicts. Owner mix differs between models (some are more often taxis, first cars or rural cars), which is why every figure compares cars at the same mileage. How we compare cars.

MOT records: DVSA MOT history, which contains public sector information licensed under the Open Government Licence v3.0. See this the other way round.