1971 MG Mgb — MOT History by Age

How cars manufactured in 1971 perform at MOT as they age

55 years

Current Age

84.2%

Latest Pass Rate

3,355

Total Tests (All Years)

40,265 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 1971 MG Mgb as it ages.

38 yrs68.5%

→ ↑1.9%

39 yrs70.4%

→ ↑1.0%

40 yrs71.4%

→ ↑4.6%

41 yrs76.0%

→ ↓4.4%

42 yrs71.6%

→ ↓0.9%

43 yrs70.7%

→ ↑0.7%

44 yrs71.4%

→ ↑1.7%

45 yrs73.1%

→ ↓2.6%

46 yrs70.5%

→ ↑5.0%

47 yrs75.5%

→ ↓1.0%

48 yrs74.5%

→ ↑0.5%

49 yrs75.0%

→ ↑0.7%

50 yrs75.7%

→ ↑7.2%

51 yrs82.9%

→ ↓2.9%

52 yrs80.0%

→ ↑4.2%

53 yrs84.2%

📊 View as table

Age	Pass Rate	Tests
38 yrs	68.5%	302
39 yrs	70.4%	314
40 yrs	71.4%	322
41 yrs	76.0%	313
42 yrs	71.6%	341
43 yrs	70.7%	334
44 yrs	71.4%	332
45 yrs	73.1%	320
46 yrs	70.5%	315
47 yrs	75.5%	143
48 yrs	74.5%	102
49 yrs	75.0%	72
50 yrs	75.7%	37
51 yrs	82.9%	35
52 yrs	80.0%	35
53 yrs	84.2%	38

Pass Rate Trend

How the 1971 MG Mgb pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (53 yrs)	84.2%	38
2023 (52 yrs)	80%	35
2022 (51 yrs)	82.9%	35
2021 (50 yrs)	75.7%	37
2020 (49 yrs)	75%	72
2019 (48 yrs)	74.5%	102
2018 (47 yrs)	75.5%	143
2017 (46 yrs)	70.5%	315
2016 (45 yrs)	73.1%	320
2015 (44 yrs)	71.4%	332
2014 (43 yrs)	70.7%	334
2013 (42 yrs)	71.6%	341
2012 (41 yrs)	76%	313
2011 (40 yrs)	71.4%	322
2010 (39 yrs)	70.4%	314
2009 (38 yrs)	68.5%	302

Year-by-Year MOT Results

2009

68.5%

Age (yrs) 38Tests 302Avg Mileage 40,626Top Failure Lamps, Reflectors and Electrical Equipment — 16.9%

2010

70.4%

Age (yrs) 39Tests 314Avg Mileage 41,872Top Failure Lamps, Reflectors and Electrical Equipment — 16.6%

2011

71.4%

Age (yrs) 40Tests 322Avg Mileage 38,485Top Failure Lamps, Reflectors and Electrical Equipment — 16.8%

2012

76.0%

Age (yrs) 41Tests 313Avg Mileage 37,748Top Failure Lamps, Reflectors and Electrical Equipment — 12.8%

2013

71.6%

Age (yrs) 42Tests 341Avg Mileage 39,126Top Failure Lamps, Reflectors and Electrical Equipment — 29.9%

2014

70.7%

Age (yrs) 43Tests 334Avg Mileage 38,730Top Failure Suspension — 31.1%

2015

71.4%

Age (yrs) 44Tests 332Avg Mileage 38,002Top Failure Brakes — 35.8%

2016

73.1%

Age (yrs) 45Tests 320Avg Mileage 38,248Top Failure Lamps, Reflectors and Electrical Equipment — 30.6%

2017

70.5%

Age (yrs) 46Tests 315Avg Mileage 40,612Top Failure Lamps, Reflectors and Electrical Equipment — 32.1%

2018

75.5%

Age (yrs) 47Tests 143Avg Mileage 41,072Top Failure Suspension — 20.3%

2019

74.5%

Age (yrs) 48Tests 102Avg Mileage 42,865Top Failure Suspension — 29.4%

2020

75.0%

Age (yrs) 49Tests 72Avg Mileage 38,793Top Failure Lamps, reflectors and electrical equipment — 31.9%

2021

75.7%

Age (yrs) 50Tests 37Avg Mileage 40,731Top Failure Lamps, reflectors and electrical equipment — 37.8%

2022

82.9%

Age (yrs) 51Tests 35Avg Mileage 36,443Top Failure Brakes — 28.6%

2023

80.0%

Age (yrs) 52Tests 35Avg Mileage 39,453Top Failure Suspension — 20.0%

2024

84.2%

Age (yrs) 53Tests 38Avg Mileage 40,265Top Failure Brakes — 15.8%

MOT results for 1971 MG Mgb by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	38	68.5%	302	40,626	Lamps, Reflectors and Electrical Equipment — 16.9%
2010	39	70.4%	314	41,872	Lamps, Reflectors and Electrical Equipment — 16.6%
2011	40	71.4%	322	38,485	Lamps, Reflectors and Electrical Equipment — 16.8%
2012	41	76.0%	313	37,748	Lamps, Reflectors and Electrical Equipment — 12.8%
2013	42	71.6%	341	39,126	Lamps, Reflectors and Electrical Equipment — 29.9%
2014	43	70.7%	334	38,730	Suspension — 31.1%
2015	44	71.4%	332	38,002	Brakes — 35.8%
2016	45	73.1%	320	38,248	Lamps, Reflectors and Electrical Equipment — 30.6%
2017	46	70.5%	315	40,612	Lamps, Reflectors and Electrical Equipment — 32.1%
2018	47	75.5%	143	41,072	Suspension — 20.3%
2019	48	74.5%	102	42,865	Suspension — 29.4%
2020	49	75.0%	72	38,793	Lamps, reflectors and electrical equipment — 31.9%
2021	50	75.7%	37	40,731	Lamps, reflectors and electrical equipment — 37.8%
2022	51	82.9%	35	36,443	Brakes — 28.6%
2023	52	80.0%	35	39,453	Suspension — 20.0%
2024	53	84.2%	38	40,265	Brakes — 15.8%

Common MOT Failures

Top failure categories across all test years for 1971 MG Mgb, with age trends.

Lamps, Reflectors and Electrical Equipment

21.8%

↓ Decreases with age

Lamps, reflectors and electrical equipment

21.5%

↓ Decreases with age

Suspension

21.2%

↑ Increases with age

Brakes

18.3%

↑ Increases with age

Visibility

11.5%

↑ 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
Brakes	11.6% (38 yrs)	15.8% (53 yrs)	+4.2%	🔴 ↑

Other Manufacture Years

1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981

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About This Data

This page shows how MG Mgb cars manufactured in 1971 perform at MOT as they age. Data spans from 2009 to 2024, covering 3,355 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.