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2014 Mercedes-Benz B — MOT History by Age

How cars manufactured in 2014 perform at MOT as they age

12 years
Current Age
81.9%
Latest Pass Rate
22,191
Total Tests (All Years)
48,015 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 6

This car: 81.9%
Average: 73.4%

✅ 8.5% above average (18367 models compared)

How This Car Ages

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

3 yrs89.0%
4 yrs86.2%
5 yrs83.8%
6 yrs81.9%

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

Fail Rate %
📊 View as table
AgePass RateTests
3 yrs89.0%6,970
4 yrs86.2%4,814
5 yrs83.8%5,220
6 yrs81.9%5,187

Pass Rate Trend

How the 2014 Mercedes-Benz B 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
2020 (6 yrs)81.9%5,187
2019 (5 yrs)83.8%5,220
2018 (4 yrs)86.2%4,814
2017 (3 yrs)89%6,970

Year-by-Year MOT Results

2017
89.0%
Age (yrs) 3Tests 6,970Avg Mileage 26,214Top Failure Lamps, Reflectors and Electrical Equipment — 7.9%
2018
86.2%
Age (yrs) 4Tests 4,814Avg Mileage 33,404Top Failure Tyres — 11.3%
2019
83.8%
Age (yrs) 5Tests 5,220Avg Mileage 40,685Top Failure Tyres — 18.3%
2020
81.9%
Age (yrs) 6Tests 5,187Avg Mileage 48,015Top Failure Tyres — 20.1%

Common MOT Failures

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

Tyres
14.4%
↑ Increases with age
Lamps, reflectors and electrical equipment
6.8%
↑ Increases with age
Lamps, Reflectors and Electrical Equipment
6.2%
↓ Decreases with age
Brakes
6.1%
↑ Increases with age
Visibility
2.7%
— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Tyres7.9% (3 yrs)20.1% (6 yrs)
+12.2%
🔴 ↑
Brakes3.0% (3 yrs)8.8% (6 yrs)
+5.8%
🔴 ↑

Other Manufacture Years

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

About This Data

This page shows how Mercedes-Benz B cars manufactured in 2014 perform at MOT as they age. Data spans from 2017 to 2020, covering 22,191 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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