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2008 Mercedes Slk 55 — MOT History by Age

How cars manufactured in 2008 perform at MOT as they age

18 years
Current Age
86.7%
Latest Pass Rate
471
Total Tests (All Years)
52,860 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 9

This car: 86.7%
Average: 62.0%

✅ 24.7% above average (15872 models compared)

How This Car Ages

Pass rate progression for the 2008 Mercedes Slk 55 as it ages.

3 yrs91.5%
4 yrs77.6%
5 yrs81.7%
6 yrs88.6%
7 yrs84.0%
8 yrs81.2%
9 yrs86.7%

Bar chart showing pass rate by car age from 3 to 9 years

Fail Rate %
📊 View as table
AgePass RateTests
3 yrs91.5%71
4 yrs77.6%76
5 yrs81.7%71
6 yrs88.6%79
7 yrs84.0%75
8 yrs81.2%69
9 yrs86.7%30

Pass Rate Trend

How the 2008 Mercedes Slk 55 pass rate changes as it ages, from first MOT to most recent.

Trend shows improving over 7 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2017 (9 yrs)86.7%30
2016 (8 yrs)81.2%69
2015 (7 yrs)84%75
2014 (6 yrs)88.6%79
2013 (5 yrs)81.7%71
2012 (4 yrs)77.6%76
2011 (3 yrs)91.5%71

Year-by-Year MOT Results

2011
91.5%
Age (yrs) 3Tests 71Avg Mileage 20,333Top Failure Brakes — 2.8%
2012
77.6%
Age (yrs) 4Tests 76Avg Mileage 25,373Top Failure Tyres — 14.5%
2013
81.7%
Age (yrs) 5Tests 71Avg Mileage 28,540Top Failure Tyres — 33.8%
2014
88.6%
Age (yrs) 6Tests 79Avg Mileage 34,134Top Failure Lamps, Reflectors and Electrical Equipment — 11.4%
2015
84.0%
Age (yrs) 7Tests 75Avg Mileage 39,134Top Failure Tyres — 13.3%
2016
81.2%
Age (yrs) 8Tests 69Avg Mileage 43,231Top Failure Lamps, Reflectors and Electrical Equipment — 13.0%
2017
86.7%
Age (yrs) 9Tests 30Avg Mileage 52,860Top Failure Brakes — 16.7%

Common MOT Failures

Top failure categories across all test years for 2008 Mercedes Slk 55, with age trends.

Tyres
14.4%
↑ Increases with age
Suspension
11.1%
— Consistent
Exhaust, Fuel and Emissions
10.0%
— Consistent
Lamps, Reflectors and Electrical Equipment
7.6%
↑ Increases with age
Brakes
6.4%
↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Brakes2.8% (3 yrs)16.7% (9 yrs)
+13.9%
🔴 ↑
Lamps, Reflectors and Electrical Equipment2.8% (3 yrs)10.0% (9 yrs)
+7.2%
🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes Slk 55 page →

About This Data

This page shows how Mercedes Slk 55 cars manufactured in 2008 perform at MOT as they age. Data spans from 2011 to 2017, covering 471 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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