Mercedes Benz

Mercedes Benz Ml (2009)

3,088 real MOT outcomes analysed • 80% first-time pass rate

2009 Mercedes Benz Ml

CarHunch analysed 3,088 real MOT records for the 2009 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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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2009 Mercedes-Benz ML passes its MOT at almost exactly the UK average of 79.9%, which sounds reassuring until you dig deeper — nearly 38% of these vehicles have recorded a dangerous defect at some point, a genuinely high proportion that should concern any buyer. This is a serious reliability red flag: dangerous defects indicate failures affecting braking, steering, or emissions control, things that affect your safety and wallet.

These MLs are averaging 82,284 miles at test, reasonable for a 15-year-old SUV, but the real story is in the failure count: 3.23 failures per vehicle suggests systemic issues rather than isolated wear items. When you look at what's actually failing and being advised on (17.6 advisories per vehicle on top of that), you're looking at a model that demands closer inspection before purchase — have any potential buy independently surveyed by a Mercedes-specialist, not a generalist, because this model's complexity means DIY fixes rarely end well.

The 2009 Mercedes Benz Ml has a decent first-time pass rate (80%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.

⚠️ 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
80%
UK average ~80%
Around average
Dangerous (ever)
37.9%
At least once in MOT history
Check this vehicle
Avg failures / car
3.23
Over 14.9 tests on record
High
Typical mileage
82k
Middle half: 68k–97k
For context
🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.
🔧 Expect consumable spend. An average of 17.6 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 3,088 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.

Watch for defects — worth knowing

What tends to go wrong

Across 3,088 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Other issues 108.9%
Oil leak, but not excessive · Under-trays fitted obscuring some underside components · Engine covers fitted obscuring some components in the engine bay
Tyre wear 44.6%
Nearside Rear Tyre worn close to the legal limit · Offside Rear Tyre worn close to the legal limit · Nearside Front 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.
Brake wear 32.6%
Offside Front Brake pipe corroded, covered in grease or other material · Nearside Rear Brake pipe corroded, covered in grease or other material · Offside Rear Brake pipe corroded, covered in grease or other material · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Data covers a 3-year window centred on 2009.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 3,088 Mercedes Benz Ml cars.

UK

Before you buy a 2009 Mercedes Benz Ml

Based on MOT data from 3,088 vehicles — here's what to check.

  • 📋 Check the full MOT history. 37.9% 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 (98%) 3,017 79.8% 3.26
Petrol (2%) 69 85.6% 1.78

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 2009 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.

81,703
typical
67,542
low mileage
96,580
high mileage

Half of all 2009 Mercedes Benz Ml vehicles fall between 67,542 and 96,580 miles.

Is the mileage you're seeing normal?
Under 67,542 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.
67,542–96,580 miles — normal for age. This is where most 2009 Mercedes Benz Mls sit.
Over 130,383 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2009 Mercedes Benz Ml — Still on the Road

Numbers are thinning — 58% of 2009 Mercedes Benz Mls are still active.

1,646 vehicles still getting MOTs in 2025 — 58% of the peak remain.

2,824 1,646 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

14.9
Avg MOT tests per vehicle
3.23
Avg failures per vehicle
17.6
Avg advisories per vehicle
Other model years — Mercedes Benz Ml: All Ml years → Which year to buy? →
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Watch for defects — worth knowing