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MOT reliability

Triumph S

4,831 vehicles · 34,906 completed MOT tests analysed
89%
MOT pass rate

Based on 4,831 Triumph S vehicles and 34,906 completed MOT tests, the Triumph S has an overall 89% pass rate, with an average recorded mileage of 18,244 miles.

4,831
Vehicles
34,906
MOT tests
1,239
Avg miles / year
0.5
Faults per test
3%
Dangerous-fault share

Triumph S problem areas

Where faults occur most across all Triumph S MOT tests:

  • Brakes22%
  • Tyres, wheels & suspension22%
  • Other18%
  • Lamps & electrical16%
  • Emissions & nuisance13%
  • Body & structure9%
  • Steering8%
  • Seatbelts & equipment3%

Triumph S pass rate by age

How the Triumph S's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)TestsPass rate
12100%
27388%
34,26789%
44,09090%
53,96290%
63,81489%
73,74091%
83,74890%
93,54890%
102,95489%
112,02689%
121,05088%
1332287%
145682%
153482%
161894%
171392%
18475%
192100%
201100%

Fuel types: Petrol (4,829), LPG (1), Electric (1)

Most common Triumph S MOT faults

These are the faults and advisories recorded most often across Triumph S MOT tests:

  1. Exhaust noisy (8.1.1 (a)) (1,729 times)
  2. Front Tyre worn close to the legal limit (5.2.3 (e)) (1,229 times)
  3. Rear Tyre worn close to the legal limit (5.2.3 (e)) (1,005 times)
  4. Front Brake pad(s) close to minimum limit (1.1.13 (a)) (748 times)
  5. Steering headbearing slightly stiff or notchy (2.2.2 (f) (i)) (576 times)
  6. Rear reflector missing (4.8.2 (a) (ii)) (563 times)
  7. Drive chain slightly loose (6.1.7 (c) (i)) (515 times)
  8. Front Brake indicates slight fluctuation of brake effort (1.2.1 (e)) (515 times)
  9. Front Brake binding but not excessively (1.2.1 (f)) (458 times)
  10. Headlamp aim too high (4.1.2 (a)) (252 times)
  11. Rear Brake pad(s) close to minimum limit (1.1.13 (a)) (224 times)
  12. Drive chain worn but not considered excessive (6.1.7 (c) (i)) (182 times)
  13. Exhaust noisy (7.1.2) (178 times)
  14. Registration plate does not conform to the specified requirements (0.1 (d)) (155 times)
  15. Rear Brake indicates slight fluctuation of brake effort (1.2.1 (e)) (151 times)

Triumph S pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2020 1 4 50% 7,053
2018 7 39 97% 14,089
2017 293 1,771 93% 12,084
2016 1,016 6,818 91% 13,246
2015 1,186 8,896 90% 14,582
2014 1,143 9,669 89% 16,094
2013 655 5,686 89% 16,621
2012 75 498 91% 11,910
2011 18 104 84% 9,351
2010 18 98 87% 11,757
2009 11 51 86% 11,096
2008 7 38 82% 18,055
2007 4 36 81% 22,375
1997 1 18 72% 51,785
1992 1 4 100% 53,047
1990 1 1 100% 89,784
1988 1 5 60% 51,675
1985 1 1 100% 8,659
1983 1 1 100% 50,587
1982 1 1 100% 51,001
1981 1 4 75% 79,087
1978 15 63 71% 41,426
1977 48 152 76% 60,541
1976 54 165 77% 54,212
1975 46 130 79% 61,264
1974 55 143 81% 58,205
1973 60 176 74% 61,470
1972 70 188 79% 54,071
1971 27 75 79% 57,129
1970 12 71 86% 57,705
1961 1 1 100% 12,914
1960 1 1 100% 32,008

Triumph S reliability FAQ

Across 4,831 Triumph S vehicles in our MOT data, 89% pass the MOT (a 11% failure rate), with about 0.5 faults or advisories recorded per test.

The most frequently recorded Triumph S MOT issues are: Exhaust noisy (8.1.1 (a)); Front Tyre worn close to the legal limit (5.2.3 (e)); Rear Tyre worn close to the legal limit (5.2.3 (e)).

The typical Triumph S in our data has covered around 18,244 miles.

Compare the Triumph S

See how the Triumph S stacks up against other Triumph models on MOT reliability:

S vs Toledo S vs Unknown S vs 2000 S vs 1500

Check a specific Triumph S

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

See all Triumph models · Learn about common MOT failures · what an MOT checks