Mercedes Benz

Mercedes Benz Ml (2003)

5,891 real MOT outcomes analysed • 70.7% first-time pass rate

2003 Mercedes Benz Ml

CarHunch analysed 5,891 real MOT records for the 2003 Mercedes Benz Ml. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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On this page
AI Analysis Reliability Overview Common Issues Check a Specific Reg Petrol vs Diesel Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2003 Mercedes-Benz ML passes its MOT first time in only 70.7% of cases, well below the UK average of 80%, and nearly half of these vehicles (46.9%) have recorded a dangerous defect at some point — a serious red flag for a prospective buyer. Neither diesel nor petrol variants escape this pattern; both sit around 70% pass rates with no meaningful difference between them.

At 93,454 miles median, these cars are well-used for their age, yet they're still racking up an average of 5.68 failures and 30.1 advisories per test, suggesting mechanical wear is accumulating faster than typical. Before buying one, get a full pre-purchase inspection focusing on suspension, braking systems, and electrical components — the scale of issues on these vehicles means a cheap purchase price can quickly evaporate in repair bills.

The 2003 Mercedes Benz Ml has a below-average first-time pass rate (70.7% vs ~80% UK average) — check the specific vehicle's full MOT history carefully before buying.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
70.7%
UK average ~80%
Below average
Dangerous (ever)
46.9%
At least once in MOT history
Check this vehicle
Avg failures / car
5.68
Over 18.3 tests on record
High
Typical mileage
93k
Middle half: 78k–110k
For context
⚠️ Below average. More vehicles in this cohort fail their first MOT than typical. Scrutinise this vehicle's history — look for recurring issues, not just the latest result.
🔧 Expect consumable spend. An average of 30.1 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 5,891 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Buyer beware — pass it on

What tends to go wrong

Across 5,891 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 77%
Offside Front Tyre worn close to the legal limit · Nearside Front Tyre worn close to the legal limit · Nearside Rear Tyre worn close to the legal limit · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Other issues 72.3%
Oil leak · Oil leak, but not excessive · Child seat fitted not allowing full inspection of adult belt · …
Brake wear 66.1%
Rear Brake pad(s) wearing thin · Front Brake pad(s) wearing thin · Rear Brake pipe slightly corroded · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Suspension & steering 24.5%
Nearside Front suspension has slight play in a lower suspension ball joint · Offside Front suspension has slight play in a lower suspension ball joint
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.
Lighting 24%
Nearside Stop lamp not working
Usually cheap to fix. Worth confirming all lights work before collecting.

Data covers a 3-year window centred on 2003.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 5,891 Mercedes Benz Ml cars.

UK

Petrol vs Diesel

Pass rate difference of 1.5 percentage points — worth knowing if you're choosing between the two.

71.8%
Petrol
1,283 vehicles
70.3%
Diesel
4,564 vehicles

Before you buy a 2003 Mercedes Benz Ml

Based on MOT data from 5,891 vehicles — here's what to check.

  • 📋 Check the full MOT history. 46.9% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Diesel (77%) 4,564 70.3% 5.76
Petrol (22%) 1,283 71.8% 5.42

Colour Breakdown

Based on 79,894 Mercedes Benz Ml vehicles registered in the UK — across all years. From DVLA registration records.

Silver 39.6%
31,654
Black 33.7%
26,910
Blue 12.5%
9,999
White 4.4%
3,520
Grey 3.5%
2,830
Green 3.5%
2,760
Red 1.5%
1,214
Beige 0.3%
278
Bronze 0.3%
269
Gold 0.3%
230
Brown 0.2%
187
Maroon 0.1%
43

Mileage Distribution

Most 2003 Mercedes Benz Ml vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

93,454
typical
77,536
low mileage
110,319
high mileage

Half of all 2003 Mercedes Benz Ml vehicles fall between 77,536 and 110,319 miles.

Is the mileage you're seeing normal?
Under 77,536 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
77,536–110,319 miles — normal for age. This is where most 2003 Mercedes Benz Mls sit.
Over 148,930 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2003 Mercedes Benz Ml — Still on the Road

Numbers are thinning — 15% of 2003 Mercedes Benz Mls are still active.

Numbers are declining — 696 vehicles still getting MOTs in 2025 (15% of peak).

4,675 696 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

18.3
Avg MOT tests per vehicle
5.68
Avg failures per vehicle
30.1
Avg advisories per vehicle
Other model years — Mercedes Benz Ml: All Ml years → Which year to buy? →
1998 1999 2000 2001 2002 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

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Compare with another model

See how the 2003 Mercedes Benz Ml stacks up against a rival.

Buyer beware — pass it on