1978 Mercedes-Benz 450 — MOT History by Age
How cars manufactured in 1978 perform at MOT as they age
48 years
Current Age
57.4%
Latest Pass Rate
47
Total Tests (All Years)
117,539 mi
Avg Mileage (Latest)
Data from official DVSA MOT testing records
Insufficient data for same-age comparison.
How This Car Ages
📉
Insufficient data for this analysis
Pass Rate Trend
📊
Insufficient data for this analysis
Year-by-Year MOT Results
2017High Fail Rate
57.4%
Age (yrs) 39Tests 47Avg Mileage 117,539Top Failure Lamps, Reflectors and Electrical Equipment — 46.8%
Common MOT Failures
Top failure categories across all test years for 1978 Mercedes-Benz 450, with age trends.
Lamps, Reflectors and Electrical Equipment
46.8%
— Consistent
Brakes
31.9%
— Consistent
Exhaust, Fuel and Emissions
23.4%
— Consistent
Suspension
23.4%
— Consistent
Driver's View of the Road
14.9%
— Consistent
How Failures Change With Age
Comparing failure rates between the youngest and oldest test years.
| Category | At Youngest | At Oldest | Change | Trend |
|---|---|---|---|---|
| Lamps, Reflectors and Electrical Equipment | 46.8% (39 yrs) | 46.8% (39 yrs) | 0.0%
| ⚪ — |
| Brakes | 31.9% (39 yrs) | 31.9% (39 yrs) | 0.0%
| ⚪ — |
| Exhaust, Fuel and Emissions | 23.4% (39 yrs) | 23.4% (39 yrs) | 0.0%
| ⚪ — |
| Suspension | 23.4% (39 yrs) | 23.4% (39 yrs) | 0.0%
| ⚪ — |
| Driver's View of the Road | 14.9% (39 yrs) | 14.9% (39 yrs) | 0.0%
| ⚪ — |
Other Manufacture Years
Looking for the best year to buy? See the full comparison on the Mercedes-Benz 450 page →
About This Data
This page shows how Mercedes-Benz 450 cars manufactured in 1978 perform at MOT as they age. Data spans from 2017 to 2017, covering 47 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.