MOT reliability
Vauxhall Unknown
45,107 vehicles · 876 completed MOT tests analysed
79%
MOT pass rate
Based on 45,107 Vauxhall Unknown vehicles and 876 completed MOT tests, the Vauxhall Unknown has an overall 79% pass rate, with an average recorded mileage of 72,924 miles.
45,107
Vehicles
876
MOT tests
6,652
Avg miles / year
1.6
Faults per test
4%
Dangerous-fault share
Vauxhall Unknown problem areas
Where faults occur most across all Vauxhall Unknown MOT tests:
-
Tyres, wheels & suspension31%
-
Other24%
-
Brakes23%
-
Lamps & electrical9%
-
Emissions & nuisance5%
-
Body & structure5%
-
Visibility3%
-
Steering2%
Vauxhall Unknown pass rate by age
How the Vauxhall Unknown's MOT pass rate changes as it ages (buckets with 20+ tests).
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 1 | 100% |
| 2 | 6 | 83% |
| 3 | 72 | 86% |
| 4 | 60 | 82% |
| 5 | 58 | 90% |
| 6 | 60 | 80% |
| 7 | 66 | 79% |
| 8 | 69 | 78% |
| 9 | 61 | 82% |
| 10 | 55 | 78% |
| 11 | 48 | 69% |
| 12 | 27 | 74% |
| 13 | 24 | 71% |
| 14 | 16 | 75% |
| 15 | 18 | 61% |
| 16 | 15 | 80% |
| 17 | 12 | 67% |
| 18 | 4 | 75% |
| 19 | 6 | 50% |
| 20 | 2 | 50% |
Fuel types: Petrol (43,269), Diesel (1,812), Other (15), Electric (4), LPG (3), Hybrid Electric (Clean) (3), Gas (1)
Most common Vauxhall Unknown MOT faults
These are the faults and advisories recorded most often across Vauxhall Unknown MOT tests:
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (38 times)
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (36 times)
- Oil leak, but not excessive (8.4.1 (a) (i)) (25 times)
- Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (20 times)
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii)) (18 times)
- Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (15 times)
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii)) (15 times)
- Parking brake efficiency below requirements (1.4.2 (a) (i)) (13 times)
- Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (12 times)
- Nearside Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (12 times)
- Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) (10 times)
- Offside Front Lower Suspension arm ball joint has slight play (5.3.4 (a) (i)) (10 times)
- Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) (9 times)
- Nearside Rear Brake pipe corroded, covered in grease or other material (1.1.11 (c)) (8 times)
- Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) (8 times)
Vauxhall Unknown pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2025 | 1 | 1 | 100% | 169,049 |
| 2023 | 1 | 1 | 100% | 4,674 |
| 2022 | 15 | 19 | 84% | 30,307 |
| 2020 | 1 | 3 | 67% | 11,525 |
| 2019 | 11 | 50 | 82% | 46,406 |
| 2018 | 6 | 26 | 81% | 38,806 |
| 2017 | 16 | 118 | 87% | 38,244 |
| 2016 | 6 | 37 | 78% | 95,662 |
| 2015 | 19 | 108 | 80% | 53,174 |
| 2014 | 10 | 72 | 71% | 62,937 |
| 2013 | 10 | 53 | 85% | 82,494 |
| 2012 | 7 | 33 | 82% | 120,226 |
| 2011 | 1 | 1 | 100% | 46,851 |
| 2010 | 6 | 27 | 70% | 127,546 |
| 2009 | 4 | 36 | 78% | 98,584 |
| 2008 | 7 | 61 | 67% | 159,737 |
| 2006 | 2 | 9 | 67% | 183,480 |
| 2005 | 2 | 7 | 86% | 187,431 |
| 2004 | 1 | 5 | 60% | 121,711 |
| 2003 | 1 | 2 | 50% | 131,212 |
| 2000 | 5 | 10 | 70% | 130,322 |
| 1999 | 2 | 2 | 50% | 40,471 |
| 1996 | 1 | 5 | 60% | 62,337 |
| 1995 | 1 | 5 | 40% | 79,204 |
| 1991 | 1 | 1 | 100% | 29,755 |
| 1990 | 1 | 4 | 50% | 60,160 |
| 1988 | 2 | 12 | 75% | 21,061 |
| 1985 | 1 | 2 | 100% | 539 |
| 1984 | 2 | 7 | 100% | 79,198 |
| 1982 | 1 | 3 | 33% | 44,549 |
| 1981 | 2 | 3 | 100% | 73,821 |
| 1979 | 1 | 2 | 50% | 88,653 |
| 1978 | 3 | 5 | 100% | 18,771 |
| 1975 | 1 | 1 | 0% | — |
| 1974 | 4 | 5 | 100% | 70,827 |
| 1973 | 6 | 10 | 80% | 50,486 |
| 1972 | 3 | 3 | 100% | 63,602 |
| 1971 | 1 | 3 | 67% | 86,564 |
| 1968 | 2 | 4 | 50% | 76,999 |
| 1966 | 2 | 4 | 100% | 141,102 |
| 1965 | 2 | 11 | 82% | 58,182 |
| 1963 | 2 | 2 | 100% | 14,893 |
| 1960 | 3 | 8 | 88% | 44,205 |
| 1959 | 1 | 2 | 100% | 72,585 |
| 1955 | 1 | 1 | 100% | — |
| 1954 | 1 | 2 | 50% | 45,485 |
| 1951 | 1 | 2 | 50% | — |
| 1947 | 2 | 2 | 100% | 27,404 |
| 1939 | 1 | 2 | 100% | 289 |
| 1938 | 1 | 1 | 100% | 73,257 |
| 1937 | 2 | 2 | 100% | 70,733 |
| 1936 | 2 | 3 | 67% | 45,422 |
| 1935 | 2 | 11 | 64% | 34,050 |
| 1933 | 1 | 1 | 100% | 22,879 |
| 1923 | 1 | 2 | 100% | 3,150 |
Vauxhall Unknown reliability FAQ
Across 45,107 Vauxhall Unknown vehicles in our MOT data,
79% pass the MOT (a 21% failure rate), with about
1.6 faults or advisories recorded per test.
The most frequently recorded Vauxhall Unknown MOT issues are:
Nearside Front 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)); Oil leak, but not excessive (8.4.1 (a) (i)).
The typical Vauxhall Unknown in our data has covered around
72,924 miles.
Compare the Vauxhall Unknown
See how the Vauxhall Unknown stacks up against other Vauxhall models on MOT reliability:
Check a specific Vauxhall Unknown
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