Skip to content

MOT reliability

Mercedes-benz G-class

2,147 vehicles · 14,891 completed MOT tests analysed
84%
MOT pass rate

Based on 2,147 Mercedes-benz G-class vehicles and 14,891 completed MOT tests, the Mercedes-benz G-class has an overall 84% pass rate, with an average recorded mileage of 64,259 miles.

2,147
Vehicles
14,891
MOT tests
5,360
Avg miles / year
1.3
Faults per test
2%
Dangerous-fault share

Mercedes-benz G-class problem areas

Where faults occur most across all Mercedes-benz G-class MOT tests:

  • Other36%
  • Tyres, wheels & suspension21%
  • Brakes18%
  • Lamps & electrical9%
  • Steering7%
  • Emissions & nuisance7%
  • Visibility4%
  • Body & structure2%

Mercedes-benz G-class pass rate by age

How the Mercedes-benz G-class's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)TestsPass rate
116100%
27491%
31,45391%
41,48489%
51,47688%
61,50387%
71,46584%
81,23186%
91,00983%
1076382%
1162181%
1246380%
1332882%
1427779%
1521877%
1619678%
1719277%
1817980%
1917881%
2018374%

Fuel types: Petrol (1,303), Diesel (836), Hybrid Electric (Clean) (6), Electric (1), Electric Diesel (1)

Most common Mercedes-benz G-class MOT faults

These are the faults and advisories recorded most often across Mercedes-benz G-class MOT tests:

  1. Oil leak, but not excessive (8.4.1 (a) (i)) (410 times)
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (277 times)
  3. Front Brake pad(s) wearing thin (1.1.13 (a) (ii)) (262 times)
  4. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (255 times)
  5. Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (196 times)
  6. Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (160 times)
  7. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (158 times)
  8. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (153 times)
  9. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii)) (150 times)
  10. Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i)) (149 times)
  11. Nearside Rear Child Seat fitted not allowing full inspection of adult belt (127 times)
  12. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (126 times)
  13. Offside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (120 times)
  14. Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (114 times)
  15. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (111 times)

Mercedes-benz G-class pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2026 1 1 100% 90,446
2025 1 1 100% 825
2024 1 1 100% 24,000
2023 7 8 100% 17,543
2022 9 11 91% 39,825
2021 18 31 90% 37,507
2020 28 72 92% 48,288
2019 117 456 90% 44,524
2018 293 1,577 90% 47,743
2017 267 1,711 87% 49,037
2016 219 1,402 87% 55,522
2015 199 1,460 86% 54,708
2014 170 1,304 87% 54,464
2013 159 1,349 88% 68,349
2012 91 885 84% 67,550
2011 56 607 85% 72,317
2010 22 158 79% 81,990
2009 18 82 84% 97,245
2008 26 122 80% 93,450
2007 19 95 79% 73,900
2006 12 97 71% 124,890
2005 20 149 79% 91,299
2004 26 122 84% 90,800
2003 22 95 85% 89,680
2002 42 264 78% 97,250
2001 33 356 74% 105,112
2000 30 315 81% 102,898
1999 27 371 78% 135,113
1998 16 216 75% 145,303
1997 7 34 71% 170,110
1996 8 74 74% 163,066
1995 6 37 62% 99,718
1994 9 38 63% 109,099
1993 12 131 73% 110,661
1992 18 156 71% 113,175
1991 22 229 76% 152,067
1990 13 75 71% 50,693
1989 17 210 70% 54,281
1988 16 177 67% 65,120
1987 13 86 73% 47,034
1986 12 81 59% 50,945
1985 12 75 69% 65,862
1984 13 97 74% 94,355
1983 11 54 65% 45,170
1982 7 18 72% 31,473
1981 1 1 100% 34,768
1980 1 1 100% 107

Mercedes-benz G-class reliability FAQ

Across 2,147 Mercedes-benz G-class vehicles in our MOT data, 84% pass the MOT (a 16% failure rate), with about 1.3 faults or advisories recorded per test.

The most frequently recorded Mercedes-benz G-class MOT issues are: Oil leak, but not excessive (8.4.1 (a) (i)); Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)); Front Brake pad(s) wearing thin (1.1.13 (a) (ii)).

The typical Mercedes-benz G-class in our data has covered around 64,259 miles.

Compare the Mercedes-benz G-class

See how the Mercedes-benz G-class stacks up against other Mercedes-benz models on MOT reliability:

G-class vs C G-class vs E G-class vs Sprinter G-class vs A-class

Check a specific Mercedes-benz G-class

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Mercedes-benz models · Learn about common MOT failures · what an MOT checks