MOT comparison

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

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

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

417,169

MOT tests compared · built 2018–2026

Passes more often in 0 of 9 mileage bands

BMW 1 Series F40 (3rd Gen)

165,336

MOT tests compared · built 2019–2026

Passes more often in 6 of 9 mileage bands

MOT pass rate by mileage

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

Mercedes-Benz A-Class W177 BMW 1 Series F40

Under 10,000 miles 94.5% vs 95.4%

14,548 and 6,791 MOTs

10,000–20,000 miles 92.3% vs 93.0%

66,185 and 31,829 MOTs

20,000–30,000 miles 89.6% vs 90.7%

96,298 and 44,584 MOTs

30,000–40,000 miles 86.7% vs 88.8%

87,539 and 35,490 MOTs

40,000–50,000 miles 84.8% vs 87.2%

64,501 and 22,561 MOTs

50,000–60,000 miles 83.8% vs 85.7%

42,073 and 12,364 MOTs

60,000–70,000 miles 82.8% vs 84.6%

24,825 and 6,571 MOTs

70,000–80,000 miles 83.0% vs 83.2%

13,726 and 3,343 MOTs

80,000–90,000 miles 80.7% vs 83.7%

7,474 and 1,803 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

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

BMW 1 Series F40 fails more often on

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

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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.