2009 Mercedes R 320 — MOT History by Age

How cars manufactured in 2009 perform at MOT as they age

17 years

Current Age

72.8%

Latest Pass Rate

1,509

Total Tests (All Years)

110,934 mi

Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 11

This car: 72.8%

Average: 56.2%

✅ 16.6% above average (14777 models compared)

How This Car Ages

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

3 yrs80.8%

→ ↓1.3%

4 yrs79.5%

→ ↓0.1%

5 yrs79.4%

→ ↑0.7%

6 yrs80.1%

→ ↓8.3%

7 yrs71.8%

→ ↓1.2%

8 yrs70.6%

→ ↓2.8%

9 yrs67.8%

→ ↓6.1%

10 yrs61.7%

→ ↑11.1%

11 yrs72.8%

📊 View as table

Age	Pass Rate	Tests
3 yrs	80.8%	224
4 yrs	79.5%	219
5 yrs	79.4%	218
6 yrs	80.1%	216
7 yrs	71.8%	220
8 yrs	70.6%	136
9 yrs	67.8%	90
10 yrs	61.7%	94
11 yrs	72.8%	92

Pass Rate Trend

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

📊 View as table

Built	Pass Rate	Tests
2020 (11 yrs)	72.8%	92
2019 (10 yrs)	61.7%	94
2018 (9 yrs)	67.8%	90
2017 (8 yrs)	70.6%	136
2016 (7 yrs)	71.8%	220
2015 (6 yrs)	80.1%	216
2014 (5 yrs)	79.4%	218
2013 (4 yrs)	79.5%	219
2012 (3 yrs)	80.8%	224

Year-by-Year MOT Results

2012

80.8%

Age (yrs) 3Tests 224Avg Mileage 37,396Top Failure Lamps, Reflectors and Electrical Equipment — 11.2%

2013

79.5%

Age (yrs) 4Tests 219Avg Mileage 48,113Top Failure Lamps, Reflectors and Electrical Equipment — 18.3%

2014

79.4%

Age (yrs) 5Tests 218Avg Mileage 58,771Top Failure Lamps, Reflectors and Electrical Equipment — 18.8%

2015

80.1%

Age (yrs) 6Tests 216Avg Mileage 68,108Top Failure Brakes — 17.6%

2016

71.8%

Age (yrs) 7Tests 220Avg Mileage 81,265Top Failure Lamps, Reflectors and Electrical Equipment — 25.0%

2017

70.6%

Age (yrs) 8Tests 136Avg Mileage 89,476Top Failure Lamps, Reflectors and Electrical Equipment — 23.5%

2018

67.8%

Age (yrs) 9Tests 90Avg Mileage 96,844Top Failure Brakes — 51.1%

2019High Fail Rate

61.7%

Age (yrs) 10Tests 94Avg Mileage 106,598Top Failure Lamps, reflectors and electrical equipment — 41.5%

2020

72.8%

Age (yrs) 11Tests 92Avg Mileage 110,934Top Failure Brakes — 32.6%

MOT results for 2009 Mercedes R 320 by test year
Test Year▲	Age (yrs)▲▼	Pass Rate▲▼	Tests▲▼	Avg Mileage▲▼	Top Failure▲▼
2012	3	80.8%	224	37,396	Lamps, Reflectors and Electrical Equipment — 11.2%
2013	4	79.5%	219	48,113	Lamps, Reflectors and Electrical Equipment — 18.3%
2014	5	79.4%	218	58,771	Lamps, Reflectors and Electrical Equipment — 18.8%
2015	6	80.1%	216	68,108	Brakes — 17.6%
2016	7	71.8%	220	81,265	Lamps, Reflectors and Electrical Equipment — 25.0%
2017	8	70.6%	136	89,476	Lamps, Reflectors and Electrical Equipment — 23.5%
2018	9	67.8%	90	96,844	Brakes — 51.1%
2019	10	61.7%	94	106,598	Lamps, reflectors and electrical equipment — 41.5%
2020	11	72.8%	92	110,934	Brakes — 32.6%

Common MOT Failures

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

Lamps, reflectors and electrical equipment

27.0%

↑ Increases with age

Brakes

22.7%

↑ Increases with age

Lamps, Reflectors and Electrical Equipment

17.2%

— Consistent

Tyres

16.6%

↑ Increases with age

Noise, emissions and leaks

10.2%

↓ Decreases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

Category	At Youngest	At Oldest	Change	Trend
Brakes	4.0% (3 yrs)	32.6% (11 yrs)	+28.6%	🔴 ↑
Tyres	6.3% (3 yrs)	25.0% (11 yrs)	+18.7%	🔴 ↑
Suspension	2.2% (3 yrs)	7.6% (11 yrs)	+5.4%	🔴 ↑

Other Manufacture Years

2006 2007 2008 2009 2010 2011

← Back to Mercedes R 320 overview

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

About This Data

This page shows how Mercedes R 320 cars manufactured in 2009 perform at MOT as they age. Data spans from 2012 to 2020, covering 1,509 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.