2009 Mercedes C 320 — MOT History by Age

How cars manufactured in 2009 perform at MOT as they age

17 years

Current Age

65.3%

Latest Pass Rate

4,014

Total Tests (All Years)

104,271 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 11

This car: 65.3%

Average: 56.2%

✅ 9.1% above average (14777 models compared)

How This Car Ages

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

3 yrs81.7%

→ ↑0.3%

4 yrs82.0%

→ ↓3.3%

5 yrs78.7%

→ ↑0.9%

6 yrs79.6%

→ ↓0.3%

7 yrs79.3%

→ ↓5.1%

8 yrs74.2%

→ ↓2.3%

9 yrs71.9%

→ ↓7.4%

10 yrs64.5%

→ ↑0.8%

11 yrs65.3%

📊 View as table

Age	Pass Rate	Tests
3 yrs	81.7%	687
4 yrs	82.0%	687
5 yrs	78.7%	671
6 yrs	79.6%	661
7 yrs	79.3%	646
8 yrs	74.2%	217
9 yrs	71.9%	146
10 yrs	64.5%	155
11 yrs	65.3%	144

Pass Rate Trend

How the 2009 Mercedes C 320 pass rate changes as it ages, from first MOT to most recent.

📊 View as table

Built	Pass Rate	Tests
2020 (11 yrs)	65.3%	144
2019 (10 yrs)	64.5%	155
2018 (9 yrs)	71.9%	146
2017 (8 yrs)	74.2%	217
2016 (7 yrs)	79.3%	646
2015 (6 yrs)	79.6%	661
2014 (5 yrs)	78.7%	671
2013 (4 yrs)	82%	687
2012 (3 yrs)	81.7%	687

Year-by-Year MOT Results

2012

81.7%

Age (yrs) 3Tests 687Avg Mileage 34,258Top Failure Tyres — 11.6%

2013

82.0%

Age (yrs) 4Tests 687Avg Mileage 44,143Top Failure Tyres — 19.1%

2014

78.7%

Age (yrs) 5Tests 671Avg Mileage 54,231Top Failure Tyres — 20.1%

2015

79.6%

Age (yrs) 6Tests 661Avg Mileage 64,683Top Failure Tyres — 17.9%

2016

79.3%

Age (yrs) 7Tests 646Avg Mileage 72,825Top Failure Brakes — 16.1%

2017

74.2%

Age (yrs) 8Tests 217Avg Mileage 79,597Top Failure Brakes — 23.5%

2018

71.9%

Age (yrs) 9Tests 146Avg Mileage 86,750Top Failure Brakes — 26.7%

2019High Fail Rate

64.5%

Age (yrs) 10Tests 155Avg Mileage 97,850Top Failure Brakes — 43.9%

2020

65.3%

Age (yrs) 11Tests 144Avg Mileage 104,271Top Failure Brakes — 43.8%

MOT results for 2009 Mercedes C 320 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2012	3	81.7%	687	34,258	Tyres — 11.6%
2013	4	82.0%	687	44,143	Tyres — 19.1%
2014	5	78.7%	671	54,231	Tyres — 20.1%
2015	6	79.6%	661	64,683	Tyres — 17.9%
2016	7	79.3%	646	72,825	Brakes — 16.1%
2017	8	74.2%	217	79,597	Brakes — 23.5%
2018	9	71.9%	146	86,750	Brakes — 26.7%
2019	10	64.5%	155	97,850	Brakes — 43.9%
2020	11	65.3%	144	104,271	Brakes — 43.8%

Common MOT Failures

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

Lamps, reflectors and electrical equipment

21.3%

↑ Increases with age

Tyres

20.7%

↑ Increases with age

Brakes

20.2%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

11.8%

— Consistent

Noise, emissions and leaks

11.0%

— Consistent

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	2.8% (3 yrs)	43.8% (11 yrs)	+41.0%	🔴 ↑
Suspension	1.2% (3 yrs)	30.6% (11 yrs)	+29.4%	🔴 ↑
Tyres	11.6% (3 yrs)	26.4% (11 yrs)	+14.8%	🔴 ↑

Other Manufacture Years

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

← Back to Mercedes C 320 overview

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

About This Data

This page shows how Mercedes C 320 cars manufactured in 2009 perform at MOT as they age. Data spans from 2012 to 2020, covering 4,014 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.