Mercedes-Benz C MOT reliability

Mercedes-Benz Cs passed their MOT first time 56% of the time across 9 tests in 2025.

Example photo of a Mercedes-Benz C — Photo: Alexander-93 · CC BY-SA 4.0 · Wikimedia Commons

These figures come from only 9 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

56%

MOTs analysed

9

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

2004 diesel

1 MOT

Passed first time 100%. Typical mileage 152,494 (most between 152,494 and 152,494).

2005: 100% → 2006: 81% → 2007: 77% → 2008: 75% → 2009: 69% → 2010: 67% → 2011: 64% → 2012: 62% → 2013: 58% → 2014: 58% → 2015: 56% → 2016: 56% → 2017: 56% → 2018: 55% → 2019: 55% → 2020: 55% → 2022: 100% → 2023: 100% → 2024: 100% → 2025: 100%

Most common failures

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.