1986 Ford Sierra — MOT History by Age

How cars manufactured in 1986 perform at MOT as they age

40 years

Current Age

94.9%

Latest Pass Rate

4,260

Total Tests (All Years)

52,184 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for Sierra

Insufficient data for same-age comparison.

How This Car Ages

Pass rate progression for the 1986 Ford Sierra as it ages.

23 yrs68.2%

→ ↑3.5%

24 yrs71.7%

→ ↑2.4%

25 yrs74.1%

→ ↑4.0%

26 yrs78.1%

→ ↓1.2%

27 yrs76.9%

→ ↑3.2%

28 yrs80.1%

→ ↓0.0%

29 yrs80.1%

→ ↑6.5%

30 yrs86.6%

→ ↓2.3%

31 yrs84.3%

→ ↑5.2%

32 yrs89.5%

→ ↓3.5%

33 yrs86.0%

→ ↑1.9%

34 yrs87.9%

→ ↓1.2%

35 yrs86.7%

→ ↑2.2%

36 yrs88.9%

→ ↑1.5%

37 yrs90.4%

→ ↑4.5%

38 yrs94.9%

📊 View as table

Age	Pass Rate	Tests
23 yrs	68.2%	412
24 yrs	71.7%	353
25 yrs	74.1%	336
26 yrs	78.1%	302
27 yrs	76.9%	281
28 yrs	80.1%	276
29 yrs	80.1%	277
30 yrs	86.6%	254
31 yrs	84.3%	274
32 yrs	89.5%	191
33 yrs	86.0%	178
34 yrs	87.9%	165
35 yrs	86.7%	218
36 yrs	88.9%	190
37 yrs	90.4%	219
38 yrs	94.9%	334

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2024 (38 yrs)	94.9%	334
2023 (37 yrs)	90.4%	219
2022 (36 yrs)	88.9%	190
2021 (35 yrs)	86.7%	218
2020 (34 yrs)	87.9%	165
2019 (33 yrs)	86%	178
2018 (32 yrs)	89.5%	191
2017 (31 yrs)	84.3%	274
2016 (30 yrs)	86.6%	254
2015 (29 yrs)	80.1%	277
2014 (28 yrs)	80.1%	276
2013 (27 yrs)	76.9%	281
2012 (26 yrs)	78.1%	302
2011 (25 yrs)	74.1%	336
2010 (24 yrs)	71.7%	353
2009 (23 yrs)	68.2%	412

Year-by-Year MOT Results

2009

68.2%

Age (yrs) 23Tests 412Avg Mileage 55,257Top Failure Lamps, Reflectors and Electrical Equipment — 14.6%

2010

71.7%

Age (yrs) 24Tests 353Avg Mileage 56,499Top Failure Lamps, Reflectors and Electrical Equipment — 14.7%

2011

74.1%

Age (yrs) 25Tests 336Avg Mileage 55,394Top Failure Lamps, Reflectors and Electrical Equipment — 11.3%

2012

78.1%

Age (yrs) 26Tests 302Avg Mileage 54,907Top Failure Lamps, Reflectors and Electrical Equipment — 12.3%

2013

76.9%

Age (yrs) 27Tests 281Avg Mileage 56,205Top Failure Lamps, Reflectors and Electrical Equipment — 21.0%

2014

80.1%

Age (yrs) 28Tests 276Avg Mileage 54,684Top Failure Lamps, Reflectors and Electrical Equipment — 18.5%

2015

80.1%

Age (yrs) 29Tests 277Avg Mileage 53,993Top Failure Lamps, Reflectors and Electrical Equipment — 23.1%

2016

86.6%

Age (yrs) 30Tests 254Avg Mileage 53,338Top Failure Suspension — 18.5%

2017

84.3%

Age (yrs) 31Tests 274Avg Mileage 54,897Top Failure Lamps, Reflectors and Electrical Equipment — 17.9%

2018

89.5%

Age (yrs) 32Tests 191Avg Mileage 53,741Top Failure Brakes — 8.4%

2019

86.0%

Age (yrs) 33Tests 178Avg Mileage 55,772Top Failure Lamps, reflectors and electrical equipment — 24.7%

2020

87.9%

Age (yrs) 34Tests 165Avg Mileage 54,328Top Failure Brakes — 10.3%

2021

86.7%

Age (yrs) 35Tests 218Avg Mileage 53,731Top Failure Lamps, reflectors and electrical equipment — 18.3%

2022

88.9%

Age (yrs) 36Tests 190Avg Mileage 52,387Top Failure Lamps, reflectors and electrical equipment — 13.2%

2023

90.4%

Age (yrs) 37Tests 219Avg Mileage 54,143Top Failure Brakes — 12.8%

2024

94.9%

Age (yrs) 38Tests 334Avg Mileage 52,184Top Failure Lamps, reflectors and electrical equipment — 7.8%

MOT results for 1986 Ford Sierra by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	23	68.2%	412	55,257	Lamps, Reflectors and Electrical Equipment — 14.6%
2010	24	71.7%	353	56,499	Lamps, Reflectors and Electrical Equipment — 14.7%
2011	25	74.1%	336	55,394	Lamps, Reflectors and Electrical Equipment — 11.3%
2012	26	78.1%	302	54,907	Lamps, Reflectors and Electrical Equipment — 12.3%
2013	27	76.9%	281	56,205	Lamps, Reflectors and Electrical Equipment — 21.0%
2014	28	80.1%	276	54,684	Lamps, Reflectors and Electrical Equipment — 18.5%
2015	29	80.1%	277	53,993	Lamps, Reflectors and Electrical Equipment — 23.1%
2016	30	86.6%	254	53,338	Suspension — 18.5%
2017	31	84.3%	274	54,897	Lamps, Reflectors and Electrical Equipment — 17.9%
2018	32	89.5%	191	53,741	Brakes — 8.4%
2019	33	86.0%	178	55,772	Lamps, reflectors and electrical equipment — 24.7%
2020	34	87.9%	165	54,328	Brakes — 10.3%
2021	35	86.7%	218	53,731	Lamps, reflectors and electrical equipment — 18.3%
2022	36	88.9%	190	52,387	Lamps, reflectors and electrical equipment — 13.2%
2023	37	90.4%	219	54,143	Brakes — 12.8%
2024	38	94.9%	334	52,184	Lamps, reflectors and electrical equipment — 7.8%

Common MOT Failures

Top failure categories across all test years for 1986 Ford Sierra, with age trends.

Lamps, Reflectors and Electrical Equipment

14.6%

↓ Decreases with age

Lamps, reflectors and electrical equipment

12.7%

— Consistent

Brakes

10.7%

↓ Decreases with age

Suspension

10.6%

↓ Decreases with age

Driver's View of the Road

8.3%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	14.3% (23 yrs)	2.4% (38 yrs)	-11.9%	🟢 ↓
Suspension	13.8% (23 yrs)	5.7% (38 yrs)	-8.1%	🟢 ↓

Other Manufacture Years

1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993

← Back to Ford Sierra overview

Looking for the best year to buy? See the full comparison on the Ford Sierra page →

About This Data

This page shows how Ford Sierra cars manufactured in 1986 perform at MOT as they age. Data spans from 2009 to 2024, covering 4,260 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.