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2014 Mercedes-Benz S 350 — MOT History by Age

How cars manufactured in 2014 perform at MOT as they age

12 years
Current Age
89.1%
Latest Pass Rate
717
Total Tests (All Years)
69,426 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 6

This car: 89.1%
Average: 73.4%

✅ 15.7% above average (18367 models compared)

How This Car Ages

Pass rate progression for the 2014 Mercedes-Benz S 350 as it ages.

3 yrs89.0%
4 yrs88.0%
5 yrs89.2%
6 yrs89.1%

Bar chart showing pass rate by car age from 3 to 6 years

Fail Rate %
📊 View as table
AgePass RateTests
3 yrs89.0%236
4 yrs88.0%150
5 yrs89.2%166
6 yrs89.1%165

Pass Rate Trend

How the 2014 Mercedes-Benz S 350 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
2020 (6 yrs)89.1%165
2019 (5 yrs)89.2%166
2018 (4 yrs)88%150
2017 (3 yrs)89%236

Year-by-Year MOT Results

2017
89.0%
Age (yrs) 3Tests 236Avg Mileage 34,935Top Failure Tyres — 10.2%
2018
88.0%
Age (yrs) 4Tests 150Avg Mileage 46,561Top Failure Tyres — 16.7%
2019
89.2%
Age (yrs) 5Tests 166Avg Mileage 57,791Top Failure Tyres — 11.4%
2020
89.1%
Age (yrs) 6Tests 165Avg Mileage 69,426Top Failure Tyres — 14.5%

Common MOT Failures

Top failure categories across all test years for 2014 Mercedes-Benz S 350, with age trends.

Tyres
13.2%
↑ Increases with age
Driver's View of the Road
4.2%
— Consistent
Brakes
4.0%
— Consistent
Identification of the vehicle
3.3%
— Consistent
Noise, emissions and leaks
3.3%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Tyres10.2% (3 yrs)14.5% (6 yrs)
+4.3%
🔴 ↑
Brakes3.0% (3 yrs)3.6% (6 yrs)
+0.6%
⚪ —

Other Manufacture Years

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

About This Data

This page shows how Mercedes-Benz S 350 cars manufactured in 2014 perform at MOT as they age. Data spans from 2017 to 2020, covering 717 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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