1986 Porsche 928 — MOT History by Age

How cars manufactured in 1986 perform at MOT as they age

40 years

Current Age

76.6%

Latest Pass Rate

1,425

Total Tests (All Years)

110,476 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 1986 Porsche 928 as it ages.

23 yrs56.7%

→ ↑13.0%

24 yrs69.7%

→ ↑0.6%

25 yrs70.3%

→ ↓4.3%

26 yrs66.0%

→ ↓12.4%

27 yrs53.6%

→ ↑15.5%

28 yrs69.1%

→ ↑1.2%

29 yrs70.3%

→ ↓3.3%

30 yrs67.0%

→ ↓0.7%

31 yrs66.3%

→ ↑6.4%

32 yrs72.7%

→ ↑0.6%

33 yrs73.3%

→ ↓1.2%

34 yrs72.1%

→ ↑2.9%

35 yrs75.0%

→ ↓7.7%

36 yrs67.3%

→ ↑4.7%

37 yrs72.0%

→ ↑4.6%

38 yrs76.6%

📊 View as table

Age	Pass Rate	Tests
23 yrs	56.7%	127
24 yrs	69.7%	122
25 yrs	70.3%	111
26 yrs	66.0%	103
27 yrs	53.6%	84
28 yrs	69.1%	81
29 yrs	70.3%	91
30 yrs	67.0%	94
31 yrs	66.3%	86
32 yrs	72.7%	66
33 yrs	73.3%	60
34 yrs	72.1%	61
35 yrs	75.0%	72
36 yrs	67.3%	55
37 yrs	72.0%	75
38 yrs	76.6%	137

Pass Rate Trend

How the 1986 Porsche 928 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (38 yrs)	76.6%	137
2023 (37 yrs)	72%	75
2022 (36 yrs)	67.3%	55
2021 (35 yrs)	75%	72
2020 (34 yrs)	72.1%	61
2019 (33 yrs)	73.3%	60
2018 (32 yrs)	72.7%	66
2017 (31 yrs)	66.3%	86
2016 (30 yrs)	67%	94
2015 (29 yrs)	70.3%	91
2014 (28 yrs)	69.1%	81
2013 (27 yrs)	53.6%	84
2012 (26 yrs)	66%	103
2011 (25 yrs)	70.3%	111
2010 (24 yrs)	69.7%	122
2009 (23 yrs)	56.7%	127

Year-by-Year MOT Results

2009High Fail Rate

56.7%

Age (yrs) 23Tests 127Avg Mileage 111,626Top Failure Lamps, Reflectors and Electrical Equipment — 27.6%

2010

69.7%

Age (yrs) 24Tests 122Avg Mileage 111,234Top Failure Lamps, Reflectors and Electrical Equipment — 19.7%

2011

70.3%

Age (yrs) 25Tests 111Avg Mileage 111,280Top Failure Lamps, Reflectors and Electrical Equipment — 13.5%

2012

66.0%

Age (yrs) 26Tests 103Avg Mileage 109,829Top Failure Lamps, Reflectors and Electrical Equipment — 24.3%

2013High Fail Rate

53.6%

Age (yrs) 27Tests 84Avg Mileage 107,680Top Failure Lamps, Reflectors and Electrical Equipment — 83.3%

2014

69.1%

Age (yrs) 28Tests 81Avg Mileage 107,032Top Failure Brakes — 27.2%

2015

70.3%

Age (yrs) 29Tests 91Avg Mileage 110,213Top Failure Lamps, Reflectors and Electrical Equipment — 45.1%

2016

67.0%

Age (yrs) 30Tests 94Avg Mileage 110,825Top Failure Lamps, Reflectors and Electrical Equipment — 27.7%

2017

66.3%

Age (yrs) 31Tests 86Avg Mileage 112,955Top Failure Lamps, Reflectors and Electrical Equipment — 47.7%

2018

72.7%

Age (yrs) 32Tests 66Avg Mileage 110,805Top Failure Lamps, reflectors and electrical equipment — 30.3%

2019

73.3%

Age (yrs) 33Tests 60Avg Mileage 116,969Top Failure Lamps, reflectors and electrical equipment — 36.7%

2020

72.1%

Age (yrs) 34Tests 61Avg Mileage 110,063Top Failure Lamps, reflectors and electrical equipment — 18.0%

2021

75.0%

Age (yrs) 35Tests 72Avg Mileage 113,585Top Failure Lamps, reflectors and electrical equipment — 29.2%

2022

67.3%

Age (yrs) 36Tests 55Avg Mileage 106,073Top Failure Lamps, reflectors and electrical equipment — 38.2%

2023

72.0%

Age (yrs) 37Tests 75Avg Mileage 108,726Top Failure Lamps, reflectors and electrical equipment — 40.0%

2024

76.6%

Age (yrs) 38Tests 137Avg Mileage 110,476Top Failure Lamps, reflectors and electrical equipment — 16.1%

MOT results for 1986 Porsche 928 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	23	56.7%	127	111,626	Lamps, Reflectors and Electrical Equipment — 27.6%
2010	24	69.7%	122	111,234	Lamps, Reflectors and Electrical Equipment — 19.7%
2011	25	70.3%	111	111,280	Lamps, Reflectors and Electrical Equipment — 13.5%
2012	26	66.0%	103	109,829	Lamps, Reflectors and Electrical Equipment — 24.3%
2013	27	53.6%	84	107,680	Lamps, Reflectors and Electrical Equipment — 83.3%
2014	28	69.1%	81	107,032	Brakes — 27.2%
2015	29	70.3%	91	110,213	Lamps, Reflectors and Electrical Equipment — 45.1%
2016	30	67.0%	94	110,825	Lamps, Reflectors and Electrical Equipment — 27.7%
2017	31	66.3%	86	112,955	Lamps, Reflectors and Electrical Equipment — 47.7%
2018	32	72.7%	66	110,805	Lamps, reflectors and electrical equipment — 30.3%
2019	33	73.3%	60	116,969	Lamps, reflectors and electrical equipment — 36.7%
2020	34	72.1%	61	110,063	Lamps, reflectors and electrical equipment — 18.0%
2021	35	75.0%	72	113,585	Lamps, reflectors and electrical equipment — 29.2%
2022	36	67.3%	55	106,073	Lamps, reflectors and electrical equipment — 38.2%
2023	37	72.0%	75	108,726	Lamps, reflectors and electrical equipment — 40.0%
2024	38	76.6%	137	110,476	Lamps, reflectors and electrical equipment — 16.1%

Common MOT Failures

Top failure categories across all test years for 1986 Porsche 928, with age trends.

Lamps, Reflectors and Electrical Equipment

35.0%

↑ Increases with age

Lamps, reflectors and electrical equipment

29.8%

↓ Decreases with age

Brakes

21.1%

↓ Decreases with age

Suspension

19.1%

↓ Decreases with age

Noise, emissions and leaks

15.3%

↓ Decreases 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	20.5% (23 yrs)	10.2% (38 yrs)	-10.3%	🟢 ↓

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 1986 perform at MOT as they age. Data spans from 2009 to 2024, covering 1,425 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.