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1986 Mercedes Unclassified — MOT History by Age

How cars manufactured in 1986 perform at MOT as they age

40 years
Current Age
53.1%
Latest Pass Rate
273
Total Tests (All Years)
162,089 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 Unclassified as it ages.

23 yrs40.5%
24 yrs50.0%
25 yrs54.2%
26 yrs51.1%
27 yrs53.1%

Bar chart showing pass rate by car age from 23 to 27 years

Fail Rate %
📊 View as table
AgePass RateTests
23 yrs40.5%84
24 yrs50.0%62
25 yrs54.2%48
26 yrs51.1%47
27 yrs53.1%32

Pass Rate Trend

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

Trend shows declining over 5 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2013 (27 yrs)53.1%32
2012 (26 yrs)51.1%47
2011 (25 yrs)54.2%48
2010 (24 yrs)50%62
2009 (23 yrs)40.5%84

Year-by-Year MOT Results

2009High Fail Rate
40.5%
Age (yrs) 23Tests 84Avg Mileage 175,005Top Failure Lamps, Reflectors and Electrical Equipment — 42.9%
2010High Fail Rate
50.0%
Age (yrs) 24Tests 62Avg Mileage 172,137Top Failure Lamps, Reflectors and Electrical Equipment — 40.3%
2011High Fail Rate
54.2%
Age (yrs) 25Tests 48Avg Mileage 151,795Top Failure Lamps, Reflectors and Electrical Equipment — 39.6%
2012High Fail Rate
51.1%
Age (yrs) 26Tests 47Avg Mileage 174,801Top Failure Lamps, Reflectors and Electrical Equipment — 44.7%
2013High Fail Rate
53.1%
Age (yrs) 27Tests 32Avg Mileage 162,089Top Failure Brakes — 109.4%

Common MOT Failures

Top failure categories across all test years for 1986 Mercedes Unclassified, with age trends.

Lamps, Reflectors and Electrical Equipment
49.1%
↑ Increases with age
Brakes
47.2%
↑ Increases with age
Suspension
38.2%
↑ Increases with age
Steering
31.3%
— Consistent
Body, Structure and General Items
24.7%
↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Suspension25.0% (23 yrs)103.1% (27 yrs)
+78.1%
🔴 ↑
Brakes40.5% (23 yrs)109.4% (27 yrs)
+68.9%
🔴 ↑
Lamps, Reflectors and Electrical Equipment42.9% (23 yrs)78.1% (27 yrs)
+35.2%
🔴 ↑
Body, Structure and General Items21.4% (23 yrs)40.6% (27 yrs)
+19.2%
🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes Unclassified page →

About This Data

This page shows how Mercedes Unclassified cars manufactured in 1986 perform at MOT as they age. Data spans from 2009 to 2013, covering 273 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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