1985 Porsche 911 — MOT History by Age

How cars manufactured in 1985 perform at MOT as they age

41 years

Current Age

74.4%

Latest Pass Rate

4,736

Total Tests (All Years)

102,396 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 1985 Porsche 911 as it ages.

24 yrs66.2%

→ ↑2.1%

25 yrs68.3%

→ ↑0.5%

26 yrs68.8%

→ ↑0.7%

27 yrs69.5%

→ ↑0.8%

28 yrs70.3%

→ ↓0.1%

29 yrs70.2%

→ ↑4.2%

30 yrs74.4%

→ ↓0.3%

31 yrs74.1%

→ ↓4.0%

32 yrs70.1%

→ ↑4.8%

33 yrs74.9%

→ ↑3.3%

34 yrs78.2%

→ ↓0.1%

35 yrs78.1%

→ ↓1.7%

36 yrs76.4%

→ ↓0.6%

37 yrs75.8%

→ ↑3.8%

38 yrs79.6%

→ ↓5.2%

39 yrs74.4%

📊 View as table

Age	Pass Rate	Tests
24 yrs	66.2%	361
25 yrs	68.3%	328
26 yrs	68.8%	320
27 yrs	69.5%	295
28 yrs	70.3%	310
29 yrs	70.2%	302
30 yrs	74.4%	312
31 yrs	74.1%	286
32 yrs	70.1%	291
33 yrs	74.9%	203
34 yrs	78.2%	202
35 yrs	78.1%	183
36 yrs	76.4%	250
37 yrs	75.8%	236
38 yrs	79.6%	260
39 yrs	74.4%	597

Pass Rate Trend

How the 1985 Porsche 911 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2024 (39 yrs)	74.4%	597
2023 (38 yrs)	79.6%	260
2022 (37 yrs)	75.8%	236
2021 (36 yrs)	76.4%	250
2020 (35 yrs)	78.1%	183
2019 (34 yrs)	78.2%	202
2018 (33 yrs)	74.9%	203
2017 (32 yrs)	70.1%	291
2016 (31 yrs)	74.1%	286
2015 (30 yrs)	74.4%	312
2014 (29 yrs)	70.2%	302
2013 (28 yrs)	70.3%	310
2012 (27 yrs)	69.5%	295
2011 (26 yrs)	68.8%	320
2010 (25 yrs)	68.3%	328
2009 (24 yrs)	66.2%	361

Year-by-Year MOT Results

2009

66.2%

Age (yrs) 24Tests 361Avg Mileage 100,644Top Failure Lamps, Reflectors and Electrical Equipment — 25.8%

2010

68.3%

Age (yrs) 25Tests 328Avg Mileage 98,449Top Failure Lamps, Reflectors and Electrical Equipment — 22.9%

2011

68.8%

Age (yrs) 26Tests 320Avg Mileage 97,205Top Failure Lamps, Reflectors and Electrical Equipment — 23.8%

2012

69.5%

Age (yrs) 27Tests 295Avg Mileage 98,282Top Failure Lamps, Reflectors and Electrical Equipment — 24.4%

2013

70.3%

Age (yrs) 28Tests 310Avg Mileage 100,569Top Failure Lamps, Reflectors and Electrical Equipment — 41.3%

2014

70.2%

Age (yrs) 29Tests 302Avg Mileage 100,525Top Failure Lamps, Reflectors and Electrical Equipment — 52.0%

2015

74.4%

Age (yrs) 30Tests 312Avg Mileage 101,766Top Failure Lamps, Reflectors and Electrical Equipment — 36.9%

2016

74.1%

Age (yrs) 31Tests 286Avg Mileage 104,940Top Failure Lamps, Reflectors and Electrical Equipment — 44.4%

2017

70.1%

Age (yrs) 32Tests 291Avg Mileage 100,432Top Failure Lamps, Reflectors and Electrical Equipment — 40.2%

2018

74.9%

Age (yrs) 33Tests 203Avg Mileage 98,528Top Failure Brakes — 27.1%

2019

78.2%

Age (yrs) 34Tests 202Avg Mileage 100,785Top Failure Lamps, reflectors and electrical equipment — 29.7%

2020

78.1%

Age (yrs) 35Tests 183Avg Mileage 100,389Top Failure Lamps, reflectors and electrical equipment — 43.7%

2021

76.4%

Age (yrs) 36Tests 250Avg Mileage 102,669Top Failure Lamps, reflectors and electrical equipment — 33.6%

2022

75.8%

Age (yrs) 37Tests 236Avg Mileage 97,983Top Failure Lamps, reflectors and electrical equipment — 28.8%

2023

79.6%

Age (yrs) 38Tests 260Avg Mileage 96,670Top Failure Lamps, reflectors and electrical equipment — 30.4%

2024

74.4%

Age (yrs) 39Tests 597Avg Mileage 102,396Top Failure Lamps, reflectors and electrical equipment — 25.5%

MOT results for 1985 Porsche 911 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	24	66.2%	361	100,644	Lamps, Reflectors and Electrical Equipment — 25.8%
2010	25	68.3%	328	98,449	Lamps, Reflectors and Electrical Equipment — 22.9%
2011	26	68.8%	320	97,205	Lamps, Reflectors and Electrical Equipment — 23.8%
2012	27	69.5%	295	98,282	Lamps, Reflectors and Electrical Equipment — 24.4%
2013	28	70.3%	310	100,569	Lamps, Reflectors and Electrical Equipment — 41.3%
2014	29	70.2%	302	100,525	Lamps, Reflectors and Electrical Equipment — 52.0%
2015	30	74.4%	312	101,766	Lamps, Reflectors and Electrical Equipment — 36.9%
2016	31	74.1%	286	104,940	Lamps, Reflectors and Electrical Equipment — 44.4%
2017	32	70.1%	291	100,432	Lamps, Reflectors and Electrical Equipment — 40.2%
2018	33	74.9%	203	98,528	Brakes — 27.1%
2019	34	78.2%	202	100,785	Lamps, reflectors and electrical equipment — 29.7%
2020	35	78.1%	183	100,389	Lamps, reflectors and electrical equipment — 43.7%
2021	36	76.4%	250	102,669	Lamps, reflectors and electrical equipment — 33.6%
2022	37	75.8%	236	97,983	Lamps, reflectors and electrical equipment — 28.8%
2023	38	79.6%	260	96,670	Lamps, reflectors and electrical equipment — 30.4%
2024	39	74.4%	597	102,396	Lamps, reflectors and electrical equipment — 25.5%

Common MOT Failures

Top failure categories across all test years for 1985 Porsche 911, with age trends.

Lamps, Reflectors and Electrical Equipment

32.5%

↓ Decreases with age

Lamps, reflectors and electrical equipment

30.7%

— Consistent

Brakes

15.8%

↓ Decreases with age

Suspension

11.2%

↓ Decreases with age

Driver's View of the Road

10.6%

↑ 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	15.8% (24 yrs)	6.9% (39 yrs)	-8.9%	🟢 ↓
Suspension	10.5% (24 yrs)	5.7% (39 yrs)	-4.8%	🟢 ↓

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Porsche 911 page →

About This Data

This page shows how Porsche 911 cars manufactured in 1985 perform at MOT as they age. Data spans from 2009 to 2024, covering 4,736 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.