1991 Leyland Daf 400 Series Diesel Turbo — MOT History by Age
How cars manufactured in 1991 perform at MOT as they age
Data from official DVSA MOT testing records
Compared to Average at Age 18
⚠️ 5.8% below average (8383 models compared)
How This Car Ages
Pass Rate Trend
Year-by-Year MOT Results
Common MOT Failures
Top failure categories across all test years for 1991 Leyland Daf 400 Series Diesel Turbo, with age trends.
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% (18 yrs) | 36.4% (18 yrs) | 0.0%
| ⚪ — |
| Lamps, Reflectors and Electrical Equipment | 36.4% (18 yrs) | 36.4% (18 yrs) | 0.0%
| ⚪ — |
| Suspension | 33.3% (18 yrs) | 33.3% (18 yrs) | 0.0%
| ⚪ — |
| Steering | 27.3% (18 yrs) | 27.3% (18 yrs) | 0.0%
| ⚪ — |
| Tyres | 24.2% (18 yrs) | 24.2% (18 yrs) | 0.0%
| ⚪ — |
Other Manufacture Years
Looking for the best year to buy? See the full comparison on the Leyland Daf 400 Series Diesel Turbo page →
About This Data
This page shows how Leyland Daf 400 Series Diesel Turbo cars manufactured in 1991 perform at MOT as they age. Data spans from 2009 to 2009, covering 33 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.