Mercedes-Benz S350 MOT reliability

Mercedes-Benz S350s passed their MOT first time 93% of the time across 55 tests in 2025.

These figures come from 55 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

First-time pass rate

93%

MOTs analysed

55

Still licensed (GB)

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Body type

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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

2 MOTs

These figures come from only 2 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 100%. Typical mileage 114,063 (most between 110,710 and 117,416).

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

Most common failures

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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.