Mercedes-Benz 518CDI MOT reliability

Mercedes-Benz 518CDIs passed their MOT first time 100% 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

100%

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

2008 diesel

2 MOTs

Passed first time 100%. Typical mileage 147,713 (most between 122,312 and 173,114).

2011: 100% → 2012: 100% → 2013: 67% → 2014: 100% → 2015: 100% → 2016: 100% → 2017: 50% → 2018: 100% → 2019: 100% → 2020: 50% → 2021: 100% → 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.