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2011 Mercedes Sl 350 — MOT History by Age

How cars manufactured in 2011 perform at MOT as they age

15 years
Current Age
86.8%
Latest Pass Rate
693
Total Tests (All Years)
45,503 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Best vintage for Sl 350

Compared to Average at Age 9

This car: 86.8%
Average: 62.0%

✅ 24.8% above average (15872 models compared)

How This Car Ages

Pass rate progression for the 2011 Mercedes Sl 350 as it ages.

3 yrs85.2%
4 yrs87.8%
5 yrs88.8%
6 yrs82.6%
7 yrs81.8%
8 yrs82.9%
9 yrs86.8%

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

Fail Rate %
📊 View as table
AgePass RateTests
3 yrs85.2%183
4 yrs87.8%180
5 yrs88.8%178
6 yrs82.6%46
7 yrs81.8%33
8 yrs82.9%35
9 yrs86.8%38

Pass Rate Trend

How the 2011 Mercedes Sl 350 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
2020 (9 yrs)86.8%38
2019 (8 yrs)82.9%35
2018 (7 yrs)81.8%33
2017 (6 yrs)82.6%46
2016 (5 yrs)88.8%178
2015 (4 yrs)87.8%180
2014 (3 yrs)85.2%183

Year-by-Year MOT Results

2014
85.2%
Age (yrs) 3Tests 183Avg Mileage 21,286Top Failure Tyres — 21.9%
2015
87.8%
Age (yrs) 4Tests 180Avg Mileage 24,444Top Failure Tyres — 12.2%
2016
88.8%
Age (yrs) 5Tests 178Avg Mileage 28,617Top Failure Tyres — 10.7%
2017
82.6%
Age (yrs) 6Tests 46Avg Mileage 32,775Top Failure Tyres — 13.0%
2018
81.8%
Age (yrs) 7Tests 33Avg Mileage 37,200Top Failure Tyres — 12.1%
2019
82.9%
Age (yrs) 8Tests 35Avg Mileage 43,526Top Failure Lamps, reflectors and electrical equipment — 14.3%
2020
86.8%
Age (yrs) 9Tests 38Avg Mileage 45,503Top Failure Brakes — 15.8%

Common MOT Failures

Top failure categories across all test years for 2011 Mercedes Sl 350, with age trends.

Tyres
12.8%
↓ Decreases with age
Lamps, reflectors and electrical equipment
9.8%
↓ Decreases with age
Brakes
7.2%
↑ Increases with age
Visibility
6.1%
— Consistent
Suspension
6.0%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Tyres21.9% (3 yrs)5.3% (9 yrs)
-16.6%
🟢 ↓
Brakes1.1% (3 yrs)15.8% (9 yrs)
+14.7%
🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes Sl 350 page →

About This Data

This page shows how Mercedes Sl 350 cars manufactured in 2011 perform at MOT as they age. Data spans from 2014 to 2020, covering 693 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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