Mercedes Benz Glb 200 Amg Line Premium Auto (2020)
2020 Mercedes Benz Glb 200 Amg Line Premium Auto
CarHunch analysed 414 real MOT records for the 2020 Mercedes Benz Glb 200 Amg Line Premium Auto.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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Moderate sample. 414 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.
The 2020 Mercedes-Benz GLB 200 AMG Line is a serious reliability concern: only 24.4% pass their MOT first time, compared to the UK average of 80%, and nearly one in three vehicles will eventually develop a dangerous defect during their life. This is not a borderline case—the gap is substantial and reflects systemic issues with this particular specification.
At under 32,000 miles on average, these cars are still relatively young, yet they're already accumulating problems; the low failure count (0.1 per vehicle) masks the real picture, which is that advisories (0.8 per vehicle) signal emerging issues that often cascade into failures. If you're considering this model, get a pre-purchase inspection focused on electrical systems and suspension components—don't rely on a recent pass certificate alone.
The 2020 Mercedes Benz Glb 200 Amg Line Premium Auto passes its MOT first time more often than most UK vehicles (91.7% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.
These stats describe 414 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.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 414 Mercedes Benz Glb 200 Amg Line Premium Auto cars.
Before you buy a 2020 Mercedes Benz Glb 200 Amg Line Premium Auto
Based on MOT data from 414 vehicles — here's what to check.
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Check the full MOT history.
3.4% 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 |
|---|---|---|---|
| Petrol (100%) | 413 | 91.6% | 0.1 |
Colour Breakdown
Based on 3,568 Mercedes Benz Glb 200 Amg Line Premium Auto vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2020 Mercedes Benz Glb 200 Amg Line Premium Auto 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 2020 Mercedes Benz Glb 200 Amg Line Premium Auto vehicles fall between 22,787 and 39,624 miles.
2020 Mercedes Benz Glb 200 Amg Line Premium Auto — Still on the Road
Almost all 2020 Mercedes Benz Glb 200 Amg Line Premium Autos are still on the road.
Strong survival — 105 vehicles still getting MOTs in 2025, 97% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.
MOT History Averages
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