1985 Ford Sierra — MOT History by Age

How cars manufactured in 1985 perform at MOT as they age

41 years

Current Age

68.2%

Latest Pass Rate

1,048

Total Tests (All Years)

61,961 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 Ford Sierra as it ages.

24 yrs53.5%

→ ↑9.4%

25 yrs62.9%

→ ↑2.8%

26 yrs65.7%

→ ↓9.3%

27 yrs56.4%

→ ↑11.6%

28 yrs68.0%

→ ↓4.9%

29 yrs63.1%

→ ↑15.7%

30 yrs78.8%

→ ↓9.0%

31 yrs69.8%

→ ↓5.2%

32 yrs64.6%

→ ↑8.9%

33 yrs73.5%

→ ↓7.7%

34 yrs65.8%

→ ↑10.5%

36 yrs76.3%

→ ↑12.3%

37 yrs88.6%

→ ↓6.2%

38 yrs82.4%

→ ↓14.2%

39 yrs68.2%

📊 View as table

Age	Pass Rate	Tests
24 yrs	53.5%	142
25 yrs	62.9%	124
26 yrs	65.7%	105
27 yrs	56.4%	78
28 yrs	68.0%	75
29 yrs	63.1%	65
30 yrs	78.8%	52
31 yrs	69.8%	53
32 yrs	64.6%	48
33 yrs	73.5%	34
34 yrs	65.8%	38
36 yrs	76.3%	38
37 yrs	88.6%	35
38 yrs	82.4%	51
39 yrs	68.2%	110

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2024 (39 yrs)	68.2%	110
2023 (38 yrs)	82.4%	51
2022 (37 yrs)	88.6%	35
2021 (36 yrs)	76.3%	38
2019 (34 yrs)	65.8%	38
2018 (33 yrs)	73.5%	34
2017 (32 yrs)	64.6%	48
2016 (31 yrs)	69.8%	53
2015 (30 yrs)	78.8%	52
2014 (29 yrs)	63.1%	65
2013 (28 yrs)	68%	75
2012 (27 yrs)	56.4%	78
2011 (26 yrs)	65.7%	105
2010 (25 yrs)	62.9%	124
2009 (24 yrs)	53.5%	142

Year-by-Year MOT Results

2009High Fail Rate

53.5%

Age (yrs) 24Tests 142Avg Mileage 55,058Top Failure Lamps, Reflectors and Electrical Equipment — 21.8%

2010High Fail Rate

62.9%

Age (yrs) 25Tests 124Avg Mileage 49,782Top Failure Suspension — 22.6%

2011

65.7%

Age (yrs) 26Tests 105Avg Mileage 49,638Top Failure Suspension — 19.0%

2012High Fail Rate

56.4%

Age (yrs) 27Tests 78Avg Mileage 52,069Top Failure Lamps, Reflectors and Electrical Equipment — 23.1%

2013

68.0%

Age (yrs) 28Tests 75Avg Mileage 49,668Top Failure Suspension — 30.7%

2014High Fail Rate

63.1%

Age (yrs) 29Tests 65Avg Mileage 49,265Top Failure Brakes — 49.2%

2015

78.8%

Age (yrs) 30Tests 52Avg Mileage 53,191Top Failure Lamps, Reflectors and Electrical Equipment — 26.9%

2016

69.8%

Age (yrs) 31Tests 53Avg Mileage 48,480Top Failure Suspension — 37.7%

2017High Fail Rate

64.6%

Age (yrs) 32Tests 48Avg Mileage 54,902Top Failure Suspension — 58.3%

2018

73.5%

Age (yrs) 33Tests 34Avg Mileage 47,841Top Failure Suspension — 52.9%

2019

65.8%

Age (yrs) 34Tests 38Avg Mileage 49,040Top Failure Lamps, reflectors and electrical equipment — 55.3%

2021

76.3%

Age (yrs) 36Tests 38Avg Mileage 56,601Top Failure Suspension — 31.6%

2022

88.6%

Age (yrs) 37Tests 35Avg Mileage 54,982Top Failure Brakes — 25.7%

2023

82.4%

Age (yrs) 38Tests 51Avg Mileage 60,499Top Failure Brakes — 54.9%

2024

68.2%

Age (yrs) 39Tests 110Avg Mileage 61,961Top Failure Brakes — 25.5%

MOT results for 1985 Ford Sierra by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	24	53.5%	142	55,058	Lamps, Reflectors and Electrical Equipment — 21.8%
2010	25	62.9%	124	49,782	Suspension — 22.6%
2011	26	65.7%	105	49,638	Suspension — 19.0%
2012	27	56.4%	78	52,069	Lamps, Reflectors and Electrical Equipment — 23.1%
2013	28	68.0%	75	49,668	Suspension — 30.7%
2014	29	63.1%	65	49,265	Brakes — 49.2%
2015	30	78.8%	52	53,191	Lamps, Reflectors and Electrical Equipment — 26.9%
2016	31	69.8%	53	48,480	Suspension — 37.7%
2017	32	64.6%	48	54,902	Suspension — 58.3%
2018	33	73.5%	34	47,841	Suspension — 52.9%
2019	34	65.8%	38	49,040	Lamps, reflectors and electrical equipment — 55.3%
2021	36	76.3%	38	56,601	Suspension — 31.6%
2022	37	88.6%	35	54,982	Brakes — 25.7%
2023	38	82.4%	51	60,499	Brakes — 54.9%
2024	39	68.2%	110	61,961	Brakes — 25.5%

Common MOT Failures

Top failure categories across all test years for 1985 Ford Sierra, with age trends.

Suspension

30.2%

— Consistent

Lamps, Reflectors and Electrical Equipment

27.6%

↑ Increases with age

Brakes

24.3%

↑ Increases with age

Lamps, reflectors and electrical equipment

22.5%

↓ Decreases with age

Driver's View of the Road

21.0%

↑ 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	16.9% (24 yrs)	25.5% (39 yrs)	+8.6%	🔴 ↑

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 1985 perform at MOT as they age. Data spans from 2009 to 2024, covering 1,048 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.