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2003 Mercedes Ml 55 — MOT History by Age

How cars manufactured in 2003 perform at MOT as they age

23 years
Current Age
50.9%
Latest Pass Rate
485
Total Tests (All Years)
96,352 mi
Avg Mileage (Latest)

Data from official DVSA MOT testing records

Compared to Average at Age 13

This car: 50.9%
Average: 53.1%

⚠️ 2.2% below average (13033 models compared)

How This Car Ages

Pass rate progression for the 2003 Mercedes Ml 55 as it ages.

6 yrs75.4%
7 yrs77.0%
8 yrs58.7%
9 yrs60.7%
10 yrs54.7%
11 yrs50.8%
12 yrs56.1%
13 yrs50.9%

Bar chart showing pass rate by car age from 6 to 13 years

Fail Rate %
📊 View as table
AgePass RateTests
6 yrs75.4%69
7 yrs77.0%61
8 yrs58.7%63
9 yrs60.7%61
10 yrs54.7%53
11 yrs50.8%59
12 yrs56.1%66
13 yrs50.9%53

Pass Rate Trend

How the 2003 Mercedes Ml 55 pass rate changes as it ages, from first MOT to most recent.

Trend shows stable over 8 years

Pass Rate %
📊 View as table
BuiltPass RateTests
2016 (13 yrs)50.9%53
2015 (12 yrs)56.1%66
2014 (11 yrs)50.8%59
2013 (10 yrs)54.7%53
2012 (9 yrs)60.7%61
2011 (8 yrs)58.7%63
2010 (7 yrs)77%61
2009 (6 yrs)75.4%69

Year-by-Year MOT Results

2009
75.4%
Age (yrs) 6Tests 69Avg Mileage 58,992Top Failure Lamps, Reflectors and Electrical Equipment — 11.6%
2010
77.0%
Age (yrs) 7Tests 61Avg Mileage 78,922Top Failure Lamps, Reflectors and Electrical Equipment — 13.1%
2011High Fail Rate
58.7%
Age (yrs) 8Tests 63Avg Mileage 79,155Top Failure Steering — 17.5%
2012High Fail Rate
60.7%
Age (yrs) 9Tests 61Avg Mileage 81,828Top Failure Lamps, Reflectors and Electrical Equipment — 23.0%
2013High Fail Rate
54.7%
Age (yrs) 10Tests 53Avg Mileage 84,756Top Failure Lamps, Reflectors and Electrical Equipment — 56.6%
2014High Fail Rate
50.8%
Age (yrs) 11Tests 59Avg Mileage 85,273Top Failure Lamps, Reflectors and Electrical Equipment — 93.2%
2015High Fail Rate
56.1%
Age (yrs) 12Tests 66Avg Mileage 93,798Top Failure Suspension — 71.2%
2016High Fail Rate
50.9%
Age (yrs) 13Tests 53Avg Mileage 96,352Top Failure Lamps, Reflectors and Electrical Equipment — 75.5%

Common MOT Failures

Top failure categories across all test years for 2003 Mercedes Ml 55, with age trends.

Lamps, Reflectors and Electrical Equipment
45.0%
↑ Increases with age
Brakes
35.1%
↑ Increases with age
Suspension
29.4%
↑ Increases with age
Exhaust, Fuel and Emissions
26.4%
— Consistent
Steering
19.2%
↑ Increases with age

How Failures Change With Age

Comparing failure rates between the youngest and oldest test years.

CategoryAt YoungestAt OldestChangeTrend
Lamps, Reflectors and Electrical Equipment11.6% (6 yrs)75.5% (13 yrs)
+63.9%
🔴 ↑
Brakes8.7% (6 yrs)47.2% (13 yrs)
+38.5%
🔴 ↑
Suspension10.1% (6 yrs)24.5% (13 yrs)
+14.4%
🔴 ↑

Other Manufacture Years

Looking for the best year to buy? See the full comparison on the Mercedes Ml 55 page →

About This Data

This page shows how Mercedes Ml 55 cars manufactured in 2003 perform at MOT as they age. Data spans from 2009 to 2016, covering 485 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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