Mercedes Benz

Mercedes Benz Gl (2006)

221 real MOT outcomes analysed • 81.1% first-time pass rate

2006 Mercedes Benz Gl

CarHunch analysed 221 real MOT records for the 2006 Mercedes Benz Gl. 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 2006 Mercedes-Benz GL passes its MOT at 81.1%, just slightly above the UK average of 80%, which is respectable for a vehicle of this age—but the real concern is that one in three examples (33%) have recorded a dangerous defect at some point, a figure well above acceptable thresholds for a family SUV. The diesel variant, which makes up the vast majority of the cohort, performs marginally better at 81.4%, so fuel type isn't a differentiator here.

These GLs are running at a reasonable 88,500 miles median for their age, yet they're averaging 2.62 failures and a notably high 16.6 advisories per test, suggesting widespread wear issues across components like brakes, suspension, and lighting. Before buying, have a pre-purchase inspection focus on the cooling system and gearbox (common problem areas on this generation), and factor in that maintenance costs will likely be above average given the advisory count.

We have limited data for the 2006 Mercedes Benz Gl — treat the figures below as indicative rather than definitive.

⚠️ 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
81.1%
UK average ~80%
Around average
Dangerous (ever)
33%
At least once in MOT history
Check this vehicle
Avg failures / car
2.62
Over 12.9 tests on record
High
Typical mileage
88k
Middle half: 70k–107k
For context

These stats describe 221 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 221 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Other issues 61%
Oil leak, but not excessive · Under-trays fitted obscuring some underside components · Engine covers fitted obscuring some components in the engine bay
Tyre wear 59.5%
Nearside Rear Tyre worn close to the legal limit · Nearside Front Tyre worn close to the legal limit · Offside 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.
Brake wear 31.8%
Front Brake pad(s) wearing thin · Rear Brake pad(s) wearing thin · Offside Front 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.
Suspension & steering 19.8%
Nearside Rear Shock absorber has a light misting of oil
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Data covers a 3-year window centred on 2006.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 221 Mercedes Benz Gl cars.

UK

Before you buy a 2006 Mercedes Benz Gl

Based on MOT data from 221 vehicles — here's what to check.

  • 📋 Check the full MOT history. 33% 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 (79%) 174 81.4% 2.66

Colour Breakdown

Based on 4,555 Mercedes Benz Gl vehicles registered in the UK — across all years. From DVLA registration records.

Black 44.3%
2,019
Silver 25.5%
1,161
White 12.6%
575
Grey 9.6%
436
Blue 5%
227
Brown 1.6%
74
Red 1.1%
48
Green 0.2%
10
Beige 0.1%
5

Mileage Distribution

Most 2006 Mercedes Benz Gl 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.

88,495
typical
70,456
low mileage
107,440
high mileage

Half of all 2006 Mercedes Benz Gl vehicles fall between 70,456 and 107,440 miles.

Is the mileage you're seeing normal?
Under 70,456 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.
70,456–107,440 miles — normal for age. This is where most 2006 Mercedes Benz Gls sit.
Over 145,044 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2006 Mercedes Benz Gl — Still on the Road

Numbers are thinning — 31% of 2006 Mercedes Benz Gls are still active.

Numbers are declining — 50 vehicles still getting MOTs in 2025 (31% of peak).

159 50 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

12.9
Avg MOT tests per vehicle
2.62
Avg failures per vehicle
16.6
Avg advisories per vehicle
Other model years — Mercedes Benz Gl: All Gl years → Which year to buy? →
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

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Compare with another model

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Watch for defects — worth knowing