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2003 Mercedes-Benz Sl — MOT History by Age

How cars manufactured in 2003 perform at MOT as they age

23 years
Current Age
82.5%
Latest Pass Rate
15,342
Total Tests (All Years)
75,739 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 2003 Mercedes-Benz Sl as it ages.

14 yrs79.1%
15 yrs79.9%
16 yrs81.0%
17 yrs78.2%
18 yrs79.8%
19 yrs79.5%
20 yrs81.2%
21 yrs82.5%

Bar chart showing pass rate by car age from 14 to 21 years

Fail Rate %
📊 View as table
AgePass RateTests
14 yrs79.1%1,330
15 yrs79.9%911
16 yrs81.0%923
17 yrs78.2%857
18 yrs79.8%2,735
19 yrs79.5%2,264
20 yrs81.2%2,501
21 yrs82.5%3,821

Pass Rate Trend

How the 2003 Mercedes-Benz Sl pass rate changes as it ages, from first MOT to most recent.

Trend shows improving over 8 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2024 (21 yrs)82.5%3,821
2023 (20 yrs)81.2%2,501
2022 (19 yrs)79.5%2,264
2021 (18 yrs)79.8%2,735
2020 (17 yrs)78.2%857
2019 (16 yrs)81%923
2018 (15 yrs)79.9%911
2017 (14 yrs)79.1%1,330

Year-by-Year MOT Results

2017
79.1%
Age (yrs) 14Tests 1,330Avg Mileage 69,292Top Failure Suspension — 20.5%
2018
79.9%
Age (yrs) 15Tests 911Avg Mileage 70,882Top Failure Suspension — 17.8%
2019
81.0%
Age (yrs) 16Tests 923Avg Mileage 72,611Top Failure Brakes — 17.6%
2020
78.2%
Age (yrs) 17Tests 857Avg Mileage 73,751Top Failure Tyres — 19.4%
2021
79.8%
Age (yrs) 18Tests 2,735Avg Mileage 74,348Top Failure Suspension — 21.2%
2022
79.5%
Age (yrs) 19Tests 2,264Avg Mileage 75,331Top Failure Brakes — 22.9%
2023
81.2%
Age (yrs) 20Tests 2,501Avg Mileage 75,292Top Failure Brakes — 20.9%
2024
82.5%
Age (yrs) 21Tests 3,821Avg Mileage 75,739Top Failure Brakes — 14.7%

Common MOT Failures

Top failure categories across all test years for 2003 Mercedes-Benz Sl, with age trends.

Suspension
18.5%
↓ Decreases with age
Brakes
18.5%
— Consistent
Tyres
15.2%
↓ Decreases with age
Lamps, reflectors and electrical equipment
7.5%
↑ Increases with age
Lamps, Reflectors and Electrical Equipment
4.7%
↓ Decreases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Suspension20.5% (14 yrs)11.7% (21 yrs)
-8.8%
🟢 ↓
Tyres15.2% (14 yrs)12.0% (21 yrs)
-3.2%
🟢 ↓
Brakes16.4% (14 yrs)14.7% (21 yrs)
-1.7%
⚪ —

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 2003 perform at MOT as they age. Data spans from 2017 to 2024, covering 15,342 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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