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2009 Mercedes-Benz C 320 — MOT History by Age

How cars manufactured in 2009 perform at MOT as they age

17 years
Current Age
63.7%
Latest Pass Rate
696
Total Tests (All Years)
119,674 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 15

This car: 63.7%
Average: 52.4%

✅ 11.3% above average (11197 models compared)

How This Car Ages

Pass rate progression for the 2009 Mercedes-Benz C 320 as it ages.

12 yrs65.4%
13 yrs59.4%
14 yrs70.4%
15 yrs63.7%

Bar chart showing pass rate by car age from 12 to 15 years

Fail Rate %
📊 View as table
AgePass RateTests
12 yrs65.4%179
13 yrs59.4%133
14 yrs70.4%169
15 yrs63.7%215

Pass Rate Trend

How the 2009 Mercedes-Benz C 320 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
2024 (15 yrs)63.7%215
2023 (14 yrs)70.4%169
2022 (13 yrs)59.4%133
2021 (12 yrs)65.4%179

Year-by-Year MOT Results

2021
65.4%
Age (yrs) 12Tests 179Avg Mileage 105,517Top Failure Brakes — 35.8%
2022High Fail Rate
59.4%
Age (yrs) 13Tests 133Avg Mileage 109,366Top Failure Brakes — 63.2%
2023
70.4%
Age (yrs) 14Tests 169Avg Mileage 116,852Top Failure Brakes — 43.8%
2024High Fail Rate
63.7%
Age (yrs) 15Tests 215Avg Mileage 119,674Top Failure Brakes — 62.3%

Common MOT Failures

Top failure categories across all test years for 2009 Mercedes-Benz C 320, with age trends.

Brakes
51.3%
↑ Increases with age
Suspension
36.9%
↑ Increases with age
Tyres
29.4%
↓ Decreases with age
Lamps, reflectors and electrical equipment
15.8%
↓ Decreases with age
Noise, emissions and leaks
11.8%
↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Brakes35.8% (12 yrs)62.3% (15 yrs)
+26.5%
🔴 ↑
Suspension34.1% (12 yrs)44.7% (15 yrs)
+10.6%
🔴 ↑
Tyres28.5% (12 yrs)21.4% (15 yrs)
-7.1%
🟢 ↓
Noise, emissions and leaks8.4% (12 yrs)14.4% (15 yrs)
+6.0%
🔴 ↑
Lamps, reflectors and electrical equipment17.3% (12 yrs)12.1% (15 yrs)
-5.2%
🟢 ↓

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes-Benz C 320 page →

About This Data

This page shows how Mercedes-Benz C 320 cars manufactured in 2009 perform at MOT as they age. Data spans from 2021 to 2024, covering 696 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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