Mercedes-Benz Ml MOT pass rate: 77.9% (28,579 tests, 2025)

The Mercedes-Benz Ml passed 77.9% of its 28,579 MOT tests in 2025 — right on the UK average of 77.5%. The median tested example was 14 years old with 110,699 miles on the clock.
77.9%Pass rate (2025)
28,579MOT tests analysed
110,699 miMedian mileage at test
14 yrsMedian age at test

How the Ml compares

Mercedes-Benz Ml

77.9%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

Mercedes-Benz average (all models)

80.7%

What fails most on the Mercedes-Benz Ml

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the Ml:

#SystemDefects recordedShare
1Lamps, reflectors and electrical equipment3,93724.5%
2Brakes3,44621.5%
3Suspension2,85417.8%
4Tyres2,19813.7%
5Noise, emissions and leaks1,1427.1%
6Body, chassis, structure1,1237.0%

Pre-MOT checklist for Ml owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

  • Walk round with all lights on: one blown bulb is the most avoidable fail there is
  • Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
  • Bounce each corner and listen for clonks over speed bumps — suspension is this model’s (and the UK’s) top failure system
  • Check tread with the 20p test and inspect sidewalls for cracking — tyres close to the limit are the country’s most common advisory
  • A blowing exhaust or visible smoke will fail; warm the engine fully before the test
Check the engine before the tester does

A stored fault code with the engine light on is an automatic Major defect. Scan and clear resolved faults before booking.

Ml pass rate by registration year

Lower age-adjusted outliers to inspect carefully: 2003. Strongest age-adjusted years: 2012, 2013. Full ranking and method: Mercedes-Benz Ml years to avoid.

Registration yearTestsPass rateVs same-ageMedian mileage
2002 2,631 68.9% +3.2 pts 128,939
2003 2,918 64.9% -0.0 pts 129,430
2004 3,990 66.0% +1.7 pts 129,226
2005 2,954 67.5% +3.1 pts 129,558
2006 5,315 74.1% +9.7 pts 131,460
2007 6,332 74.0% +8.8 pts 129,158
2008 6,628 73.7% +8.5 pts 125,312
2009 5,891 73.3% +6.9 pts 119,591
2010 7,737 73.7% +6.3 pts 114,032
2011 7,665 75.6% +6.4 pts 106,454
2012 6,773 81.3% +10.0 pts 98,951
2013 12,482 84.5% +11.2 pts 94,996
2014 11,425 84.0% +8.2 pts 84,864
2015 9,422 85.8% +7.1 pts 74,374

Check a specific Ml before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

Other Mercedes-Benz models

C78.2% pass rate · 343,551 tests A-Class77.8% pass rate · 232,671 tests E79.7% pass rate · 215,896 tests A89.1% pass rate · 93,733 tests Vito73.4% pass rate · 81,263 tests GLC87.2% pass rate · 65,847 tests GLA83.1% pass rate · 64,404 tests CLA82.7% pass rate · 62,279 tests

FAQs

What is the MOT pass rate for a Mercedes-Benz Ml?

In 2025, 77.9% of 28,579 first MOT tests on the Mercedes-Benz Ml were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the Ml fail its MOT on most?

The biggest defect group is lamps, reflectors and electrical equipment (24.5% of its recorded defects), followed by brakes.

Is the Mercedes-Benz Ml reliable?

MOT pass rate is one lens on durability: at 77.9% it performs above the national average at a median age of 14 years and 110,699 miles. Always check the individual car's history too.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.