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2003 Mercedes Slk 32 — MOT History by Age

How cars manufactured in 2003 perform at MOT as they age

23 years
Current Age
77.4%
Latest Pass Rate
127
Total Tests (All Years)
52,662 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 9

This car: 77.4%
Average: 62.0%

✅ 15.4% above average (15872 models compared)

How This Car Ages

Pass rate progression for the 2003 Mercedes Slk 32 as it ages.

6 yrs79.4%
7 yrs71.9%
8 yrs80.0%
9 yrs77.4%

Bar chart showing pass rate by car age from 6 to 9 years

Fail Rate %
📊 View as table
AgePass RateTests
6 yrs79.4%34
7 yrs71.9%32
8 yrs80.0%30
9 yrs77.4%31

Pass Rate Trend

How the 2003 Mercedes Slk 32 pass rate changes as it ages, from first MOT to most recent.

Trend shows improving over 4 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2012 (9 yrs)77.4%31
2011 (8 yrs)80%30
2010 (7 yrs)71.9%32
2009 (6 yrs)79.4%34

Year-by-Year MOT Results

2009
79.4%
Age (yrs) 6Tests 34Avg Mileage 36,516Top Failure Driver's View of the Road — 5.9%
2010
71.9%
Age (yrs) 7Tests 32Avg Mileage 41,457Top Failure Suspension — 12.5%
2011
80.0%
Age (yrs) 8Tests 30Avg Mileage 45,832Top Failure Lamps, Reflectors and Electrical Equipment — 13.3%
2012
77.4%
Age (yrs) 9Tests 31Avg Mileage 52,662Top Failure Brakes — 16.1%

Common MOT Failures

Top failure categories across all test years for 2003 Mercedes Slk 32, with age trends.

Brakes
13.1%
↑ Increases with age
Lamps, Reflectors and Electrical Equipment
10.4%
↑ Increases with age
Tyres
7.1%
↑ Increases with age
Suspension
6.3%
— Consistent
Driver's View of the Road
6.2%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Lamps, Reflectors and Electrical Equipment5.9% (6 yrs)16.1% (9 yrs)
+10.2%
🔴 ↑
Tyres5.9% (6 yrs)9.7% (9 yrs)
+3.8%
🔴 ↑
Suspension2.9% (6 yrs)3.2% (9 yrs)
+0.3%
⚪ —

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes Slk 32 page →

About This Data

This page shows how Mercedes Slk 32 cars manufactured in 2003 perform at MOT as they age. Data spans from 2009 to 2012, covering 127 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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