1977 Triumph Dolomite — MOT History by Age

How cars manufactured in 1977 perform at MOT as they age

49 years

Current Age

70.0%

Latest Pass Rate

940

Total Tests (All Years)

55,861 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1977 Triumph Dolomite as it ages.

32 yrs63.5%

→ ↓1.7%

33 yrs61.8%

→ ↓9.3%

34 yrs52.5%

→ ↑0.4%

35 yrs52.9%

→ ↑9.6%

36 yrs62.5%

→ ↑0.9%

37 yrs63.4%

→ ↓4.6%

38 yrs58.8%

→ ↑9.3%

39 yrs68.1%

→ ↑1.0%

40 yrs69.1%

→ ↓3.3%

41 yrs65.8%

→ ↑4.2%

44 yrs70.0%

📊 View as table

Age	Pass Rate	Tests
32 yrs	63.5%	104
33 yrs	61.8%	110
34 yrs	52.5%	101
35 yrs	52.9%	102
36 yrs	62.5%	88
37 yrs	63.4%	82
38 yrs	58.8%	97
39 yrs	68.1%	94
40 yrs	69.1%	94
41 yrs	65.8%	38
44 yrs	70.0%	30

Pass Rate Trend

How the 1977 Triumph Dolomite pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2021 (44 yrs)	70%	30
2018 (41 yrs)	65.8%	38
2017 (40 yrs)	69.1%	94
2016 (39 yrs)	68.1%	94
2015 (38 yrs)	58.8%	97
2014 (37 yrs)	63.4%	82
2013 (36 yrs)	62.5%	88
2012 (35 yrs)	52.9%	102
2011 (34 yrs)	52.5%	101
2010 (33 yrs)	61.8%	110
2009 (32 yrs)	63.5%	104

Year-by-Year MOT Results

2009High Fail Rate

63.5%

Age (yrs) 32Tests 104Avg Mileage 54,596Top Failure Brakes — 22.1%

2010High Fail Rate

61.8%

Age (yrs) 33Tests 110Avg Mileage 54,218Top Failure Lamps, Reflectors and Electrical Equipment — 19.1%

2011High Fail Rate

52.5%

Age (yrs) 34Tests 101Avg Mileage 50,845Top Failure Brakes — 25.7%

2012High Fail Rate

52.9%

Age (yrs) 35Tests 102Avg Mileage 52,557Top Failure Lamps, Reflectors and Electrical Equipment — 30.4%

2013High Fail Rate

62.5%

Age (yrs) 36Tests 88Avg Mileage 53,511Top Failure Brakes — 51.1%

2014High Fail Rate

63.4%

Age (yrs) 37Tests 82Avg Mileage 53,297Top Failure Suspension — 57.3%

2015High Fail Rate

58.8%

Age (yrs) 38Tests 97Avg Mileage 54,535Top Failure Lamps, Reflectors and Electrical Equipment — 59.8%

2016

68.1%

Age (yrs) 39Tests 94Avg Mileage 54,364Top Failure Lamps, Reflectors and Electrical Equipment — 40.4%

2017

69.1%

Age (yrs) 40Tests 94Avg Mileage 55,261Top Failure Suspension — 51.1%

2018

65.8%

Age (yrs) 41Tests 38Avg Mileage 50,472Top Failure Brakes — 44.7%

2021

70.0%

Age (yrs) 44Tests 30Avg Mileage 55,861Top Failure Noise, emissions and leaks — 30.0%

MOT results for 1977 Triumph Dolomite by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	32	63.5%	104	54,596	Brakes — 22.1%
2010	33	61.8%	110	54,218	Lamps, Reflectors and Electrical Equipment — 19.1%
2011	34	52.5%	101	50,845	Brakes — 25.7%
2012	35	52.9%	102	52,557	Lamps, Reflectors and Electrical Equipment — 30.4%
2013	36	62.5%	88	53,511	Brakes — 51.1%
2014	37	63.4%	82	53,297	Suspension — 57.3%
2015	38	58.8%	97	54,535	Lamps, Reflectors and Electrical Equipment — 59.8%
2016	39	68.1%	94	54,364	Lamps, Reflectors and Electrical Equipment — 40.4%
2017	40	69.1%	94	55,261	Suspension — 51.1%
2018	41	65.8%	38	50,472	Brakes — 44.7%
2021	44	70.0%	30	55,861	Noise, emissions and leaks — 30.0%

Common MOT Failures

Top failure categories across all test years for 1977 Triumph Dolomite, with age trends.

Lamps, Reflectors and Electrical Equipment

35.1%

↑ Increases with age

Brakes

34.7%

↓ Decreases with age

Suspension

30.8%

↓ Decreases with age

Noise, emissions and leaks

30.0%

— Consistent

Exhaust, Fuel and Emissions

21.7%

↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Suspension	17.3% (32 yrs)	10.0% (44 yrs)	-7.3%	🟢 ↓
Brakes	22.1% (32 yrs)	16.7% (44 yrs)	-5.4%	🟢 ↓

Other Manufacture Years

1971 1974 1975 1976 1977 1978 1979 1980 1981

← Back to Triumph Dolomite overview

Looking for the best year to buy? See the full comparison on the Triumph Dolomite page →

About This Data

This page shows how Triumph Dolomite cars manufactured in 1977 perform at MOT as they age. Data spans from 2009 to 2021, covering 940 tests. Pass rates naturally decline with age as components wear.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.