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2012 Mercedes-Benz S350 Bluetec B-fcy L Cdi Auto — MOT History by Age

How cars manufactured in 2012 perform at MOT as they age

14 years
Current Age
86.1%
Latest Pass Rate
1,613
Total Tests (All Years)
68,967 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 4

This car: 86.1%
Average: 81.1%

✅ 5.0% above average (23031 models compared)

How This Car Ages

Pass rate progression for the 2012 Mercedes-Benz S350 Bluetec B-fcy L Cdi Auto as it ages.

1 yrs93.2%
2 yrs91.9%
3 yrs89.0%
4 yrs86.1%

Bar chart showing pass rate by car age from 1 to 4 years

Fail Rate %
📊 View as table
AgePass RateTests
1 yrs93.2%161
2 yrs91.9%345
3 yrs89.0%583
4 yrs86.1%524

Pass Rate Trend

How the 2012 Mercedes-Benz S350 Bluetec B-fcy L Cdi Auto pass rate changes as it ages, from first MOT to most recent.

Trend shows declining over 4 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2016 (4 yrs)86.1%524
2015 (3 yrs)89%583
2014 (2 yrs)91.9%345
2013 (1 yrs)93.2%161

Year-by-Year MOT Results

2013
93.2%
Age (yrs) 1Tests 161Avg Mileage 21,273Top Failure Tyres — 7.5%
2014
91.9%
Age (yrs) 2Tests 345Avg Mileage 42,048Top Failure Lamps, Reflectors and Electrical Equipment — 6.7%
2015
89.0%
Age (yrs) 3Tests 583Avg Mileage 52,014Top Failure Tyres — 10.3%
2016
86.1%
Age (yrs) 4Tests 524Avg Mileage 68,967Top Failure Tyres — 15.8%

Common MOT Failures

Top failure categories across all test years for 2012 Mercedes-Benz S350 Bluetec B-fcy L Cdi Auto, with age trends.

Tyres
10.0%
↑ Increases with age
Brakes
4.6%
↑ Increases with age
Suspension
3.6%
↑ Increases with age
Lamps, Reflectors and Electrical Equipment
3.4%
— Consistent
Driver's View of the Road
2.4%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Tyres7.5% (1 yrs)15.8% (4 yrs)
+8.3%
🔴 ↑
Brakes2.5% (1 yrs)7.6% (4 yrs)
+5.1%
🔴 ↑
Lamps, Reflectors and Electrical Equipment1.9% (1 yrs)2.1% (4 yrs)
+0.2%
⚪ —

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes-Benz S350 Bluetec B-fcy L Cdi Auto page →

About This Data

This page shows how Mercedes-Benz S350 Bluetec B-fcy L Cdi Auto cars manufactured in 2012 perform at MOT as they age. Data spans from 2013 to 2016, covering 1,613 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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