1984 Porsche 928 — MOT History by Age

How cars manufactured in 1984 perform at MOT as they age

42 years

Current Age

81.9%

Latest Pass Rate

965

Total Tests (All Years)

107,232 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 1984 Porsche 928 as it ages.

25 yrs64.0%

→ ↓4.3%

26 yrs59.7%

→ ↑3.0%

27 yrs62.7%

→ ↑2.0%

28 yrs64.7%

→ ↓4.7%

29 yrs60.0%

→ ↑10.3%

30 yrs70.3%

→ ↓3.1%

31 yrs67.2%

→ ↑12.4%

32 yrs79.6%

→ ↓12.0%

33 yrs67.6%

→ ↓1.6%

34 yrs66.0%

→ ↑10.6%

35 yrs76.6%

→ ↑2.0%

36 yrs78.6%

→ ↑5.4%

37 yrs84.0%

→ ↓2.2%

38 yrs81.8%

→ ↓2.9%

39 yrs78.9%

→ ↑3.0%

40 yrs81.9%

📊 View as table

Age	Pass Rate	Tests
25 yrs	64.0%	89
26 yrs	59.7%	67
27 yrs	62.7%	75
28 yrs	64.7%	68
29 yrs	60.0%	60
30 yrs	70.3%	64
31 yrs	67.2%	61
32 yrs	79.6%	54
33 yrs	67.6%	68
34 yrs	66.0%	47
35 yrs	76.6%	47
36 yrs	78.6%	42
37 yrs	84.0%	50
38 yrs	81.8%	44
39 yrs	78.9%	57
40 yrs	81.9%	72

Pass Rate Trend

How the 1984 Porsche 928 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (40 yrs)	81.9%	72
2023 (39 yrs)	78.9%	57
2022 (38 yrs)	81.8%	44
2021 (37 yrs)	84%	50
2020 (36 yrs)	78.6%	42
2019 (35 yrs)	76.6%	47
2018 (34 yrs)	66%	47
2017 (33 yrs)	67.6%	68
2016 (32 yrs)	79.6%	54
2015 (31 yrs)	67.2%	61
2014 (30 yrs)	70.3%	64
2013 (29 yrs)	60%	60
2012 (28 yrs)	64.7%	68
2011 (27 yrs)	62.7%	75
2010 (26 yrs)	59.7%	67
2009 (25 yrs)	64%	89

Year-by-Year MOT Results

2009High Fail Rate

64.0%

Age (yrs) 25Tests 89Avg Mileage 101,381Top Failure Lamps, Reflectors and Electrical Equipment — 21.3%

2010High Fail Rate

59.7%

Age (yrs) 26Tests 67Avg Mileage 106,024Top Failure Lamps, Reflectors and Electrical Equipment — 23.9%

2011High Fail Rate

62.7%

Age (yrs) 27Tests 75Avg Mileage 100,395Top Failure Lamps, Reflectors and Electrical Equipment — 24.0%

2012High Fail Rate

64.7%

Age (yrs) 28Tests 68Avg Mileage 98,901Top Failure Lamps, Reflectors and Electrical Equipment — 26.5%

2013High Fail Rate

60.0%

Age (yrs) 29Tests 60Avg Mileage 102,399Top Failure Lamps, Reflectors and Electrical Equipment — 71.7%

2014

70.3%

Age (yrs) 30Tests 64Avg Mileage 98,503Top Failure Lamps, Reflectors and Electrical Equipment — 43.8%

2015

67.2%

Age (yrs) 31Tests 61Avg Mileage 99,591Top Failure Suspension — 34.4%

2016

79.6%

Age (yrs) 32Tests 54Avg Mileage 98,866Top Failure Lamps, Reflectors and Electrical Equipment — 27.8%

2017

67.6%

Age (yrs) 33Tests 68Avg Mileage 102,631Top Failure Lamps, Reflectors and Electrical Equipment — 45.6%

2018

66.0%

Age (yrs) 34Tests 47Avg Mileage 99,489Top Failure Suspension — 42.6%

2019

76.6%

Age (yrs) 35Tests 47Avg Mileage 103,869Top Failure Lamps, reflectors and electrical equipment — 34.0%

2020

78.6%

Age (yrs) 36Tests 42Avg Mileage 112,817Top Failure Lamps, reflectors and electrical equipment — 23.8%

2021

84.0%

Age (yrs) 37Tests 50Avg Mileage 101,468Top Failure Brakes — 28.0%

2022

81.8%

Age (yrs) 38Tests 44Avg Mileage 109,595Top Failure Lamps, reflectors and electrical equipment — 22.7%

2023

78.9%

Age (yrs) 39Tests 57Avg Mileage 105,571Top Failure Brakes — 26.3%

2024

81.9%

Age (yrs) 40Tests 72Avg Mileage 107,232Top Failure Noise, emissions and leaks — 19.4%

MOT results for 1984 Porsche 928 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	25	64.0%	89	101,381	Lamps, Reflectors and Electrical Equipment — 21.3%
2010	26	59.7%	67	106,024	Lamps, Reflectors and Electrical Equipment — 23.9%
2011	27	62.7%	75	100,395	Lamps, Reflectors and Electrical Equipment — 24.0%
2012	28	64.7%	68	98,901	Lamps, Reflectors and Electrical Equipment — 26.5%
2013	29	60.0%	60	102,399	Lamps, Reflectors and Electrical Equipment — 71.7%
2014	30	70.3%	64	98,503	Lamps, Reflectors and Electrical Equipment — 43.8%
2015	31	67.2%	61	99,591	Suspension — 34.4%
2016	32	79.6%	54	98,866	Lamps, Reflectors and Electrical Equipment — 27.8%
2017	33	67.6%	68	102,631	Lamps, Reflectors and Electrical Equipment — 45.6%
2018	34	66.0%	47	99,489	Suspension — 42.6%
2019	35	76.6%	47	103,869	Lamps, reflectors and electrical equipment — 34.0%
2020	36	78.6%	42	112,817	Lamps, reflectors and electrical equipment — 23.8%
2021	37	84.0%	50	101,468	Brakes — 28.0%
2022	38	81.8%	44	109,595	Lamps, reflectors and electrical equipment — 22.7%
2023	39	78.9%	57	105,571	Brakes — 26.3%
2024	40	81.9%	72	107,232	Noise, emissions and leaks — 19.4%

Common MOT Failures

Top failure categories across all test years for 1984 Porsche 928, with age trends.

Lamps, Reflectors and Electrical Equipment

34.9%

↑ Increases with age

Lamps, reflectors and electrical equipment

26.2%

↓ Decreases with age

Brakes

23.4%

— Consistent

Suspension

21.0%

↓ Decreases with age

Driver's View of the Road

16.9%

↑ 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	15.7% (25 yrs)	13.9% (40 yrs)	-1.8%	⚪ —

Other Manufacture Years

1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995

← Back to Porsche 928 overview

Looking for the best year to buy? See the full comparison on the Porsche 928 page →

About This Data

This page shows how Porsche 928 cars manufactured in 1984 perform at MOT as they age. Data spans from 2009 to 2024, covering 965 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.