Mercedes Benz Gl (2015)
2015 Mercedes Benz Gl
CarHunch analysed 702 real MOT records for the 2015 Mercedes Benz Gl. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2015 Mercedes-Benz GL passes its MOT at 87.8%, well above the UK average of 80%, which is genuinely impressive—but nearly 35% have recorded dangerous defects at some point, a significant red flag that warrants a full pre-purchase inspection by a specialist. The diesel-heavy cohort (608 of 702 vehicles) maintains that strong 87.6% pass rate, suggesting the engine platform is fundamentally sound.
These cars are running at a sensible 59,737 miles on average, so you're not looking at heavily thrashed examples, yet they still average 1.14 failures and 6.8 advisories per test. Before you buy, insist on a Mercedes-trained technician's inspection focusing on suspension, braking, and electrical systems—the advisory count hints at the complexity of ownership, and that high dangerous-defect percentage means preventative diligence will save you money and safety grief.
What to check before buying a 2015 Mercedes Benz Gl
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- ⚠️ 34.5% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Mercedes Benz Gl
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
CarHunch may earn a small commission if you buy via these links — at no extra cost to you.
Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (87%) | 608 | 87.6% | 1.18 |
| Petrol (13%) | 94 | 88.8% | 0.9 |
Mileage Distribution
Most 2015 Mercedes Benz Gl vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2015 Mercedes Benz Gl vehicles fall between 45,658 and 73,633 miles.
2015 Mercedes Benz Gl — Still on the Road
Strong survival — 606 vehicles still getting MOTs in 2025, 98% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2018–2025.
MOT History Averages
Most Common MOT Issues — 2015 Mercedes Benz Gl
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
43.2%
Offside Rear Tyre worn close to legal limit/worn on edge
-
43%
Nearside Rear Tyre worn close to legal limit/worn on edge
-
42.5%
Nearside Front Tyre worn close to legal limit/worn on edge
-
41.6%
Offside Front Tyre worn close to legal limit/worn on edge
-
21.2%
Oil leak, but not excessive
-
18.6%
Front Brake pad(s) wearing thin
-
18.3%
Rear Brake pad(s) wearing thin
-
15.5%
Nearside Rear Child Seat fitted not allowing full inspection of adult belt ()
Data covers a 3-year window centred on 2015. Counts include advisories and failures.
Found a specific Mercedes Benz Gl?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.