Mercedes Benz Gl (2014)
2014 Mercedes Benz Gl
CarHunch analysed 624 real MOT records for the 2014 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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The 2014 Mercedes-Benz GL passes its MOT at 87.6%, well above the UK average of 80%, but nearly a third of these vehicles have recorded a dangerous defect at some point—a serious concern for a large family SUV where safety matters most. Petrol versions hold a slight edge at 90.1% pass rate versus 87.1% for diesel, though the diesel dominates the cohort at 519 of 624 vehicles.
At 65,800 miles median age, these GLs are running relatively light for their age, yet they're averaging 8.1 advisories per test, suggesting wear is accumulating in smaller systems rather than major failures—expect to budget for suspension, lighting, and trim issues rather than engine trouble. If you're shopping for one, have a specialist inspect the braking and suspension systems specifically, since those account for a chunk of the dangerous defect history.
The 2014 Mercedes Benz Gl has a decent first-time pass rate (87.7%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.
These stats describe 624 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.
What tends to go wrong
Across 624 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 2014.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 624 Mercedes Benz Gl cars.
Before you buy a 2014 Mercedes Benz Gl
Based on MOT data from 624 vehicles — here's what to check.
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Check the full MOT history.
31.9% 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. -
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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
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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
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (83%) | 519 | 87.3% | 1.33 |
| Petrol (17%) | 105 | 90.1% | 1 |
Colour Breakdown
Based on 4,555 Mercedes Benz Gl vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2014 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.
Half of all 2014 Mercedes Benz Gl vehicles fall between 49,290 and 81,566 miles.
2014 Mercedes Benz Gl — Still on the Road
Almost all 2014 Mercedes Benz Gls are still on the road.
Strong survival — 501 vehicles still getting MOTs in 2025, 90% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.
* 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
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Compare with another model
See how the 2014 Mercedes Benz Gl stacks up against a rival.