MOT reliability
Triumph Tr4
2,107 vehicles · 12,398 completed MOT tests analysed
84%
MOT pass rate
Based on 2,107 Triumph Tr4 vehicles and 12,398 completed MOT tests, the Triumph Tr4 has an overall 84% pass rate, with an average recorded mileage of 47,467 miles.
2,107
Vehicles
12,398
MOT tests
734
Avg miles / year
1
Faults per test
1%
Dangerous-fault share
Triumph Tr4 problem areas
Where faults occur most across all Triumph Tr4 MOT tests:
-
Other98%
-
Emissions & nuisance6%
-
Tyres, wheels & suspension6%
-
Brakes6%
-
Steering5%
-
Seatbelts & equipment3%
-
Lamps & electrical3%
-
Body & structure1%
Triumph Tr4 pass rate by age
How the Triumph Tr4's MOT pass rate changes as it ages (buckets with 20+ tests).
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 74 | 82% |
| 2 | 64 | 86% |
| 3 | 69 | 84% |
| 4 | 53 | 92% |
| 5 | 55 | 89% |
| 6 | 61 | 80% |
| 7 | 53 | 85% |
| 8 | 70 | 84% |
| 9 | 86 | 81% |
| 10 | 88 | 85% |
| 11 | 89 | 87% |
| 12 | 105 | 84% |
| 13 | 92 | 89% |
| 14 | 116 | 89% |
| 15 | 111 | 90% |
| 16 | 135 | 88% |
| 17 | 147 | 85% |
| 18 | 141 | 83% |
| 19 | 145 | 87% |
| 20 | 149 | 81% |
Fuel types: Petrol (2,097), Other (9), Diesel (1)
Most common Triumph Tr4 MOT faults
These are the faults and advisories recorded most often across Triumph Tr4 MOT tests:
- Oil leak (370 times)
- Nearside Front wheel bearing has slight play (2.5.A.3c) (300 times)
- Offside Front wheel bearing has slight play (2.5.A.3c) (242 times)
- Horn not working (1.6.2a) (242 times)
- Parking brake: efficiency below requirements (3.7.B.7) (212 times)
- Steering column top bearing slightly worn (2.1.2c) (175 times)
- Oil leak, but not excessive (8.4.1 (a) (i)) (152 times)
- Windscreen washer provides insufficient washer liquid (8.2.3) (130 times)
- Nearside Front Front wheel bearing has slight play (2.5.A.3c) (120 times)
- Brakes imbalanced across an axle (3.7.B.5b) (94 times)
- Offside Front Front wheel bearing has slight play (2.5.A.3c) (94 times)
- Offside Front Upper Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2) (90 times)
- Steering system has slight free play detected at steering wheel (2.2.A.1b) (89 times)
- Nearside Stop lamp not working (1.2.1b) (84 times)
- Nearside Front Wheel bearing has slight play (5.1.3 (a) (i)) (82 times)
Triumph Tr4 pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2021 | 2 | 6 | 100% | 2,735 |
| 2020 | 7 | 18 | 72% | 28,275 |
| 2019 | 8 | 21 | 95% | 53,113 |
| 2018 | 8 | 15 | 87% | 26,847 |
| 2017 | 13 | 48 | 77% | 22,088 |
| 2016 | 10 | 41 | 90% | 51,151 |
| 2015 | 11 | 40 | 78% | 40,228 |
| 2014 | 9 | 51 | 73% | 54,497 |
| 2013 | 4 | 27 | 89% | 56,634 |
| 2012 | 4 | 33 | 85% | 39,014 |
| 2011 | 3 | 30 | 90% | 40,048 |
| 2010 | 3 | 32 | 94% | 39,041 |
| 2009 | 4 | 58 | 79% | 95,696 |
| 2008 | 7 | 63 | 87% | 48,886 |
| 2007 | 4 | 59 | 86% | 60,838 |
| 2006 | 4 | 33 | 88% | 53,515 |
| 2005 | 4 | 30 | 83% | 16,155 |
| 2004 | 8 | 70 | 91% | 29,586 |
| 2003 | 7 | 84 | 87% | 82,278 |
| 2002 | 7 | 107 | 84% | 61,614 |
| 2001 | 2 | 26 | 88% | 12,211 |
| 2000 | 10 | 142 | 84% | 63,790 |
| 1999 | 3 | 34 | 62% | 36,745 |
| 1998 | 5 | 54 | 93% | 54,904 |
| 1997 | 23 | 263 | 84% | 49,045 |
| 1996 | 16 | 157 | 89% | 51,091 |
| 1995 | 11 | 129 | 87% | 43,024 |
| 1994 | 12 | 147 | 88% | 63,220 |
| 1993 | 14 | 150 | 88% | 57,586 |
| 1992 | 15 | 180 | 82% | 43,299 |
| 1991 | 22 | 217 | 82% | 45,135 |
| 1990 | 28 | 309 | 86% | 51,054 |
| 1989 | 13 | 110 | 83% | 33,944 |
| 1988 | 6 | 70 | 83% | 52,406 |
| 1987 | 7 | 87 | 83% | 28,662 |
| 1986 | 4 | 31 | 77% | 84,033 |
| 1985 | 3 | 28 | 93% | 48,045 |
| 1984 | 4 | 22 | 86% | 46,212 |
| 1983 | 6 | 63 | 79% | 51,795 |
| 1982 | 5 | 31 | 90% | 61,921 |
| 1981 | 5 | 45 | 84% | 36,091 |
| 1980 | 1 | 16 | 88% | 99,184 |
| 1979 | 9 | 83 | 81% | 55,700 |
| 1978 | 4 | 28 | 86% | 33,631 |
| 1976 | 2 | 31 | 84% | 40,985 |
| 1975 | 1 | 9 | 89% | 50,989 |
| 1973 | 2 | 19 | 74% | 79,481 |
| 1971 | 4 | 18 | 78% | 41,610 |
| 1970 | 4 | 45 | 89% | 43,922 |
| 1969 | 2 | 9 | 89% | 78,726 |
| 1968 | 8 | 55 | 89% | 70,510 |
| 1967 | 88 | 744 | 83% | 47,222 |
| 1966 | 79 | 641 | 84% | 42,287 |
| 1965 | 93 | 808 | 85% | 42,722 |
| 1964 | 241 | 2,395 | 83% | 47,960 |
| 1963 | 210 | 2,034 | 82% | 46,463 |
| 1962 | 231 | 2,196 | 84% | 50,262 |
| 1961 | 8 | 62 | 85% | 40,663 |
| 1960 | 3 | 14 | 64% | 37,286 |
| 1955 | 1 | 4 | 100% | 43,294 |
| 1932 | 1 | 9 | 89% | 28,887 |
Triumph Tr4 reliability FAQ
Across 2,107 Triumph Tr4 vehicles in our MOT data,
84% pass the MOT (a 16% failure rate), with about
1 faults or advisories recorded per test.
The most frequently recorded Triumph Tr4 MOT issues are:
Oil leak; Nearside Front wheel bearing has slight play (2.5.A.3c); Offside Front wheel bearing has slight play (2.5.A.3c).
The typical Triumph Tr4 in our data has covered around
47,467 miles.
Compare the Triumph Tr4
See how the Triumph Tr4 stacks up against other Triumph models on MOT reliability:
Check a specific Triumph Tr4
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