Mercedes-Benz Ml MOT reliability

Mercedes-Benz Mls passed their MOT first time 74% of the time across 475 tests in 2025. 24,183 are still licensed in Great Britain.

Example photo of a Mercedes-Benz Ml — Photo: Dinkun Chen · CC BY-SA 4.0 · Wikimedia Commons

First-time pass rate

74%

MOTs analysed

475

Still licensed (GB)

24,183

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

2010 diesel

38 MOTs

These figures come from 38 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

Passed first time 68%. Typical mileage 127,520 (most between 102,229 and 142,838).

2010: 100% → 2011: 50% → 2012: 90% → 2013: 87% → 2014: 83% → 2015: 79% → 2016: 76% → 2017: 72% → 2018: 70% → 2019: 69% → 2020: 69% → 2021: 65% → 2022: 63% → 2023: 72% → 2024: 67% → 2025: 68%

Most common failures

Rigid brake pipes: excessively corroded (7.9%)
Stop lamp: not working (5.3%)
Tread depth below requirements of 1.6mm (5.3%)
Exhaust system: has a major leak of exhaust gases (5.3%)
Side repeaters: not working (5.3%)

2010 petrol

1 MOT

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.

Passed first time 0%. Typical mileage 130,087 (most between 130,087 and 130,087).

2012: 100% → 2013: 88% → 2014: 87% → 2015: 92% → 2016: 79% → 2017: 85% → 2018: 92% → 2019: 88% → 2020: 86% → 2021: 0% → 2022: 0% → 2023: 0% → 2024: 100% → 2025: 0%

Most common failures

Headlamp: not working on dipped beam (100.0%)
Stop lamp: not working (100.0%)
Brake pads: less than 1.5 mm thick (100.0%)

Where 2010 Mls fail

Brakes

15.8%

Wheels & tyres

10.5%

Lights & electrics

7.9%

Body, structure & corrosion

5.3%

Suspension & axles

5.3%

Exhaust, emissions & leaks

2.6%

Seat belts & other equipment

2.6%

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.