Mercedes-Benz 250 MOT reliability

Mercedes-Benz 250s passed their MOT first time 76% of the time across 346 tests in 2025.

First-time pass rate

76%

MOTs analysed

346

Still licensed (GB)

–

Body type

Sedan

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age. Years with very few MOTs can show extreme pass rates, even 0% or 100%, so give more weight to years with more tests.

In detail:

First registered

2019 diesel

3 MOTs

These figures come from only 3 MOT tests. With so few cars, a single pass or fail changes the percentages a lot, so treat them as a rough guide rather than a true average.

Passed first time 67%. Typical mileage 74,976 (most between 66,671 and 95,408).

2021: 100% → 2022: 100% → 2023: 33% → 2024: 0% → 2025: 67%

Most common failures

Attachment: fixing missing (33.3%)

2019 petrol

1 MOT

These figures come from only 1 MOT test. With so few cars, a single pass or fail changes the percentages a lot, so treat them as a rough guide rather than a true average.

Passed first time 100%. Typical mileage 56,797 (most between 56,797 and 56,797).

2021: 75% → 2022: 100% → 2023: 100% → 2024: 100% → 2025: 100%

Most common failures

Where 2019 250s fail

Wheels & tyres

33.3%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB.