Mercedes-Benz MB100D MOT reliability

Mercedes-Benz MB100Ds passed their MOT first time 57% of the time across 7 tests in 2025.

These figures come from only 7 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

57%

MOTs analysed

7

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

1989 diesel

1 MOT

Passed first time 0%. Typical mileage 206,285 (most between 206,285 and 206,285).

2005: 100% → 2006: 100% → 2007: 67% → 2008: 0% → 2009: 100% → 2010: 100% → 2011: 100% → 2012: 100% → 2013: 100% → 2014: 0% → 2015: 100% → 2016: 50% → 2017: 0% → 2018: 0% → 2019: 0% → 2020: 33% → 2022: 100% → 2023: 100% → 2024: 0% → 2025: 0%

Most common failures

Service brake imbalance: across an axle (100.0%)
Rigid brake pipes: excessively corroded (100.0%)
Service brake performance: efficiency below requirements (100.0%)

Where 1989 MB100Ds fail

Brakes

100.0%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

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.