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2015 Mercedes-Benz Slk — MOT History by Age

How cars manufactured in 2015 perform at MOT as they age

11 years
Current Age
83.7%
Latest Pass Rate
33,622
Total Tests (All Years)
47,865 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 9

This car: 83.7%
Average: 62.0%

✅ 21.7% above average (15872 models compared)

How This Car Ages

Pass rate progression for the 2015 Mercedes-Benz Slk as it ages.

2 yrs87.9%
3 yrs89.9%
4 yrs87.2%
5 yrs88.1%
6 yrs87.2%
7 yrs85.3%
8 yrs82.8%
9 yrs83.7%

Bar chart showing pass rate by car age from 2 to 9 years

Fail Rate %
📊 View as table
AgePass RateTests
2 yrs87.9%157
3 yrs89.9%3,505
4 yrs87.2%3,611
5 yrs88.1%3,921
6 yrs87.2%4,955
7 yrs85.3%3,965
8 yrs82.8%4,856
9 yrs83.7%8,652

Pass Rate Trend

How the 2015 Mercedes-Benz Slk pass rate changes as it ages, from first MOT to most recent.

Trend shows declining over 8 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2024 (9 yrs)83.7%8,652
2023 (8 yrs)82.8%4,856
2022 (7 yrs)85.3%3,965
2021 (6 yrs)87.2%4,955
2020 (5 yrs)88.1%3,921
2019 (4 yrs)87.2%3,611
2018 (3 yrs)89.9%3,505
2017 (2 yrs)87.9%157

Year-by-Year MOT Results

2017
87.9%
Age (yrs) 2Tests 157Avg Mileage 18,353Top Failure Tyres — 8.9%
2018
89.9%
Age (yrs) 3Tests 3,505Avg Mileage 20,545Top Failure Tyres — 14.7%
2019
87.2%
Age (yrs) 4Tests 3,611Avg Mileage 25,968Top Failure Tyres — 19.9%
2020
88.1%
Age (yrs) 5Tests 3,921Avg Mileage 30,582Top Failure Tyres — 17.5%
2021
87.2%
Age (yrs) 6Tests 4,955Avg Mileage 34,378Top Failure Tyres — 16.9%
2022
85.3%
Age (yrs) 7Tests 3,965Avg Mileage 38,977Top Failure Tyres — 19.2%
2023
82.8%
Age (yrs) 8Tests 4,856Avg Mileage 43,451Top Failure Tyres — 22.9%
2024
83.7%
Age (yrs) 9Tests 8,652Avg Mileage 47,865Top Failure Tyres — 15.6%

Common MOT Failures

Top failure categories across all test years for 2015 Mercedes-Benz Slk, with age trends.

Tyres
17.0%
↑ Increases with age
Suspension
5.1%
↑ Increases with age
Brakes
5.0%
↑ Increases with age
Lamps, reflectors and electrical equipment
2.8%
— Consistent
Registration Plates and VIN
2.5%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Suspension1.3% (2 yrs)9.7% (9 yrs)
+8.4%
🔴 ↑
Tyres8.9% (2 yrs)15.6% (9 yrs)
+6.7%
🔴 ↑

Other Manufacture Years

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

About This Data

This page shows how Mercedes-Benz Slk cars manufactured in 2015 perform at MOT as they age. Data spans from 2017 to 2024, covering 33,622 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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