MOT reliability
Mercedes-benz Unknown
77,285 vehicles · 8,656 completed MOT tests analysed
85%
MOT pass rate
Based on 77,285 Mercedes-benz Unknown vehicles and 8,656 completed MOT tests, the Mercedes-benz Unknown has an overall 85% pass rate, with an average recorded mileage of 145,790 miles.
77,285
Vehicles
8,656
MOT tests
14,921
Avg miles / year
1.1
Faults per test
3%
Dangerous-fault share
Mercedes-benz Unknown problem areas
Where faults occur most across all Mercedes-benz Unknown MOT tests:
-
Tyres, wheels & suspension29%
-
Brakes22%
-
Other22%
-
Lamps & electrical12%
-
Visibility5%
-
Emissions & nuisance5%
-
Body & structure3%
-
Steering3%
Mercedes-benz Unknown pass rate by age
How the Mercedes-benz Unknown's MOT pass rate changes as it ages (buckets with 20+ tests).
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 64 | 91% |
| 2 | 98 | 84% |
| 3 | 915 | 89% |
| 4 | 868 | 88% |
| 5 | 699 | 86% |
| 6 | 614 | 84% |
| 7 | 578 | 83% |
| 8 | 548 | 80% |
| 9 | 465 | 82% |
| 10 | 398 | 79% |
| 11 | 337 | 81% |
| 12 | 260 | 82% |
| 13 | 149 | 83% |
| 14 | 107 | 80% |
| 15 | 91 | 79% |
| 16 | 100 | 78% |
| 17 | 102 | 79% |
| 18 | 82 | 78% |
| 19 | 61 | 79% |
| 20 | 45 | 84% |
Fuel types: Diesel (76,243), Petrol (856), Electric (92), Hybrid Electric (Clean) (48), Gas (32), Electric Diesel (9), Other (5)
Most common Mercedes-benz Unknown MOT faults
These are the faults and advisories recorded most often across Mercedes-benz Unknown MOT tests:
- Oil leak, but not excessive (8.4.1 (a) (i)) (189 times)
- Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (144 times)
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (143 times)
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (138 times)
- Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (132 times)
- Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i)) (106 times)
- Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (94 times)
- Parking brake efficiency below requirements (1.4.2 (a) (i)) (93 times)
- Front Registration plate deteriorated but not likely to be misread (0.1 (b)) (79 times)
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii)) (78 times)
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii)) (71 times)
- Offside Front Lower Suspension arm ball joint has slight play (5.3.4 (a) (i)) (64 times)
- Nearside Front Lower Suspension arm ball joint has slight play (5.3.4 (a) (i)) (63 times)
- Nearside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c)) (56 times)
- Offside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c)) (55 times)
Mercedes-benz Unknown pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2024 | 1 | 1 | 100% | 24,752 |
| 2023 | 48 | 64 | 83% | 14,959 |
| 2022 | 77 | 134 | 87% | 23,473 |
| 2021 | 52 | 126 | 94% | 25,768 |
| 2020 | 66 | 250 | 82% | 55,531 |
| 2019 | 61 | 247 | 89% | 48,762 |
| 2018 | 55 | 264 | 91% | 57,318 |
| 2017 | 83 | 331 | 92% | 71,440 |
| 2016 | 102 | 669 | 85% | 91,068 |
| 2015 | 97 | 747 | 83% | 83,732 |
| 2014 | 318 | 2,041 | 82% | 137,763 |
| 2013 | 120 | 808 | 83% | 69,030 |
| 2012 | 34 | 123 | 85% | 74,142 |
| 2011 | 22 | 82 | 82% | 58,391 |
| 2010 | 16 | 58 | 88% | 99,276 |
| 2009 | 13 | 23 | 83% | 53,464 |
| 2008 | 25 | 137 | 77% | 82,150 |
| 2007 | 21 | 61 | 85% | 120,939 |
| 2006 | 17 | 118 | 78% | 107,899 |
| 2005 | 13 | 109 | 76% | 125,444 |
| 2004 | 20 | 136 | 76% | 77,553 |
| 2003 | 7 | 38 | 76% | 128,413 |
| 2002 | 8 | 60 | 85% | 105,801 |
| 2001 | 4 | 28 | 75% | 132,617 |
| 2000 | 4 | 42 | 79% | 54,116 |
| 1999 | 3 | 14 | 86% | 237,394 |
| 1998 | 2 | 3 | 100% | 102,775 |
| 1997 | 1 | 4 | 75% | 73,889 |
| 1996 | 2 | 9 | 89% | 131,293 |
| 1995 | 1 | 7 | 100% | 53,011 |
| 1994 | 3 | 15 | 73% | 99,665 |
| 1993 | 2 | 9 | 89% | 130,003 |
| 1992 | 3 | 17 | 76% | 93,499 |
| 1991 | 3 | 6 | 100% | 206,405 |
| 1990 | 3 | 21 | 81% | 93,576 |
| 1989 | 2 | 15 | 73% | 110,736 |
| 1988 | 3 | 12 | 67% | 106,931 |
| 1986 | 2 | 5 | 80% | 57,938 |
| 1984 | 1 | 5 | 60% | 188,782 |
| 1983 | 2 | 2 | 100% | 118,858 |
| 1981 | 3 | 10 | 70% | 159,202 |
| 1980 | 2 | 5 | 100% | 106,305 |
| 1976 | 1 | 1 | 0% | — |
| 1975 | 1 | 1 | 100% | 75,424 |
| 1974 | 1 | 1 | 100% | 19,527 |
| 1973 | 1 | 1 | 100% | 76,293 |
| 1971 | 2 | 3 | 100% | 40,250 |
| 1970 | 1 | 3 | 67% | 36,656 |
| 1969 | 1 | 1 | 100% | 9,604 |
| 1968 | 2 | 2 | 100% | 36,006 |
| 1966 | 1 | 2 | 50% | 69,021 |
| 1965 | 1 | 1 | 100% | 63,374 |
| 1962 | 2 | 3 | 100% | 40,191 |
| 1959 | 1 | 1 | 100% | 4,757 |
| 1958 | 2 | 6 | 83% | 90,039 |
| 1938 | 1 | 1 | 100% | 17,530 |
| 1937 | 1 | 1 | 100% | 3 |
Mercedes-benz Unknown reliability FAQ
Across 77,285 Mercedes-benz Unknown vehicles in our MOT data,
85% pass the MOT (a 15% failure rate), with about
1.1 faults or advisories recorded per test.
The most frequently recorded Mercedes-benz Unknown MOT issues are:
Oil leak, but not excessive (8.4.1 (a) (i)); Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)); Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)).
The typical Mercedes-benz Unknown in our data has covered around
145,790 miles.
Compare the Mercedes-benz Unknown
See how the Mercedes-benz Unknown stacks up against other Mercedes-benz models on MOT reliability:
Check a specific Mercedes-benz Unknown
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