1986 Mercedes-Benz S-class — MOT History by Age
How cars manufactured in 1986 perform at MOT as they age
40 years
Current Age
64.1%
Latest Pass Rate
39
Total Tests (All Years)
105,139 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
2024High Fail Rate
64.1%
Age (yrs) 38Tests 39Avg Mileage 105,139Top Failure Lamps, reflectors and electrical equipment — 35.9%
Common MOT Failures
Top failure categories across all test years for 1986 Mercedes-Benz S-class, with age trends.
Lamps, reflectors and electrical equipment
35.9%
— Consistent
Body, chassis, structure
35.9%
— Consistent
Brakes
15.4%
— Consistent
Identification of the vehicle
5.1%
— Consistent
Noise, emissions and leaks
5.1%
— 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 | 35.9% (38 yrs) | 35.9% (38 yrs) | 0.0%
| ⚪ — |
| Body, chassis, structure | 35.9% (38 yrs) | 35.9% (38 yrs) | 0.0%
| ⚪ — |
| Brakes | 15.4% (38 yrs) | 15.4% (38 yrs) | 0.0%
| ⚪ — |
| Identification of the vehicle | 5.1% (38 yrs) | 5.1% (38 yrs) | 0.0%
| ⚪ — |
| Noise, emissions and leaks | 5.1% (38 yrs) | 5.1% (38 yrs) | 0.0%
| ⚪ — |
Other Manufacture Years
Looking for the best year to buy? See the full comparison on the Mercedes-Benz S-class page →
About This Data
This page shows how Mercedes-Benz S-class cars manufactured in 1986 perform at MOT as they age. Data spans from 2024 to 2024, covering 39 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.