1992 Leyland Daf 400 Series Diesel — MOT History by Age

How cars manufactured in 1992 perform at MOT as they age

34 years

Current Age

45.0%

Latest Pass Rate

617

Total Tests (All Years)

109,205 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 1992 Leyland Daf 400 Series Diesel as it ages.

17 yrs41.5%

→ ↑10.1%

18 yrs51.6%

→ ↓7.4%

19 yrs44.2%

→ ↓5.3%

20 yrs38.9%

→ ↓10.3%

21 yrs28.6%

→ ↑8.0%

22 yrs36.6%

→ ↑8.4%

23 yrs45.0%

📊 View as table

Age	Pass Rate	Tests
17 yrs	41.5%	176
18 yrs	51.6%	128
19 yrs	44.2%	104
20 yrs	38.9%	72
21 yrs	28.6%	56
22 yrs	36.6%	41
23 yrs	45.0%	40

Pass Rate Trend

How the 1992 Leyland Daf 400 Series Diesel pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2015 (23 yrs)	45%	40
2014 (22 yrs)	36.6%	41
2013 (21 yrs)	28.6%	56
2012 (20 yrs)	38.9%	72
2011 (19 yrs)	44.2%	104
2010 (18 yrs)	51.6%	128
2009 (17 yrs)	41.5%	176

Year-by-Year MOT Results

2009High Fail Rate

41.5%

Age (yrs) 17Tests 176Avg Mileage 119,213Top Failure Lamps, Reflectors and Electrical Equipment — 40.9%

2010High Fail Rate

51.6%

Age (yrs) 18Tests 128Avg Mileage 110,059Top Failure Suspension — 32.0%

2011High Fail Rate

44.2%

Age (yrs) 19Tests 104Avg Mileage 114,233Top Failure Suspension — 39.4%

2012High Fail Rate

38.9%

Age (yrs) 20Tests 72Avg Mileage 126,003Top Failure Lamps, Reflectors and Electrical Equipment — 43.1%

2013High Fail Rate

28.6%

Age (yrs) 21Tests 56Avg Mileage 111,314Top Failure Lamps, Reflectors and Electrical Equipment — 157.1%

2014High Fail Rate

36.6%

Age (yrs) 22Tests 41Avg Mileage 104,985Top Failure Brakes — 156.1%

2015High Fail Rate

45.0%

Age (yrs) 23Tests 40Avg Mileage 109,205Top Failure Brakes — 132.5%

MOT results for 1992 Leyland Daf 400 Series Diesel by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2009	17	41.5%	176	119,213	Lamps, Reflectors and Electrical Equipment — 40.9%
2010	18	51.6%	128	110,059	Suspension — 32.0%
2011	19	44.2%	104	114,233	Suspension — 39.4%
2012	20	38.9%	72	126,003	Lamps, Reflectors and Electrical Equipment — 43.1%
2013	21	28.6%	56	111,314	Lamps, Reflectors and Electrical Equipment — 157.1%
2014	22	36.6%	41	104,985	Brakes — 156.1%
2015	23	45.0%	40	109,205	Brakes — 132.5%

Common MOT Failures

Top failure categories across all test years for 1992 Leyland Daf 400 Series Diesel, with age trends.

Brakes

75.7%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

74.3%

↑ Increases with age

Suspension

71.5%

↑ Increases with age

Body, Structure and General Items

39.5%

↑ Increases with age

Steering

35.2%

↑ 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	36.4% (17 yrs)	132.5% (23 yrs)	+96.1%	🔴 ↑
Suspension	35.8% (17 yrs)	122.5% (23 yrs)	+86.7%	🔴 ↑
Lamps, Reflectors and Electrical Equipment	40.9% (17 yrs)	95.0% (23 yrs)	+54.1%	🔴 ↑
Steering	24.4% (17 yrs)	37.5% (23 yrs)	+13.1%	🔴 ↑

Other Manufacture Years

1990 1991 1992 1993 1994

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About This Data

This page shows how Leyland Daf 400 Series Diesel cars manufactured in 1992 perform at MOT as they age. Data spans from 2009 to 2015, covering 617 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.