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1986 Mercedes-Benz Sl — MOT History by Age

How cars manufactured in 1986 perform at MOT as they age

40 years
Current Age
74.8%
Latest Pass Rate
664
Total Tests (All Years)
89,033 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 1986 Mercedes-Benz Sl as it ages.

35 yrs77.0%
36 yrs78.6%
37 yrs75.0%
38 yrs74.8%

Bar chart showing pass rate by car age from 35 to 38 years

Fail Rate %
📊 View as table
AgePass RateTests
35 yrs77.0%135
36 yrs78.6%131
37 yrs75.0%156
38 yrs74.8%242

Pass Rate Trend

How the 1986 Mercedes-Benz Sl pass rate changes as it ages, from first MOT to most recent.

Trend shows declining over 4 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2024 (38 yrs)74.8%242
2023 (37 yrs)75%156
2022 (36 yrs)78.6%131
2021 (35 yrs)77%135

Year-by-Year MOT Results

2021
77.0%
Age (yrs) 35Tests 135Avg Mileage 94,300Top Failure Lamps, reflectors and electrical equipment — 32.6%
2022
78.6%
Age (yrs) 36Tests 131Avg Mileage 97,487Top Failure Lamps, reflectors and electrical equipment — 27.5%
2023
75.0%
Age (yrs) 37Tests 156Avg Mileage 97,137Top Failure Lamps, reflectors and electrical equipment — 33.3%
2024
74.8%
Age (yrs) 38Tests 242Avg Mileage 89,033Top Failure Brakes — 21.1%

Common MOT Failures

Top failure categories across all test years for 1986 Mercedes-Benz Sl, with age trends.

Lamps, reflectors and electrical equipment
27.6%
↓ Decreases with age
Suspension
24.9%
↓ Decreases with age
Brakes
21.9%
↑ Increases with age
Body, chassis, structure
11.8%
— Consistent
Visibility
10.9%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Lamps, reflectors and electrical equipment32.6% (35 yrs)16.9% (38 yrs)
-15.7%
🟢 ↓
Suspension27.4% (35 yrs)18.6% (38 yrs)
-8.8%
🟢 ↓
Brakes15.6% (35 yrs)21.1% (38 yrs)
+5.5%
🔴 ↑
Body, chassis, structure9.6% (35 yrs)9.1% (38 yrs)
-0.5%
⚪ —

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes-Benz Sl page →

About This Data

This page shows how Mercedes-Benz Sl cars manufactured in 1986 perform at MOT as they age. Data spans from 2021 to 2024, covering 664 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.

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