Mercedes-Benz CDI311 MOT reliability

Mercedes-Benz CDI311s passed their MOT first time 100% of the time across 1 test in 2025.

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.

First-time pass rate

100%

MOTs analysed

1

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

2006 diesel

1 MOT

Passed first time 100%. Typical mileage 316,958 (most between 316,958 and 316,958).

2009: 100% → 2010: 100% → 2011: 100% → 2012: 100% → 2013: 100% → 2014: 0% → 2016: 100% → 2017: 100% → 2018: 100% → 2019: 100% → 2020: 100% → 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.