Mercedes-Benz 511 MOT reliability

Mercedes-Benz 511s passed their MOT first time 50% of the time across 2 tests in 2025.

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.

First-time pass rate

50%

MOTs analysed

2

Still licensed (GB)

–

Body type

–

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

2007 diesel

2 MOTs

Passed first time 50%. Typical mileage 183,992 (most between 142,325 and 225,659).

2024: 100% → 2025: 50%

Most common failures

Washers: provides insufficient washer liquid (50.0%)
Other body component: component corroded and likely to cause injury (50.0%)

Where 2007 511s fail

Body, structure & corrosion

50.0%

Visibility & wipers

50.0%

Looking at a particular car?

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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.