Mercedes Benz Gla 200 Amg Line Premium + A (2020)
2020 Mercedes Benz Gla 200 Amg Line Premium + A
CarHunch analysed 330 real MOT records for the 2020 Mercedes Benz Gla 200 Amg Line Premium + A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2020 Mercedes-Benz GLA 200 AMG Line is a notably reliable performer, with a first-time pass rate of 91.3%—well above the UK average of 80%—and only 4.5% of vehicles ever recording a dangerous defect, which is reassuringly low. This petrol model maintains consistent reliability across the sample, with virtually identical pass rates across all examples tested.
At a median mileage of just 23,128 miles for a four-year-old car, these vehicles are running light, which explains the strong pass rates and the low average of 0.22 failures per test. The 1.6 advisories per vehicle suggest minor wear items rather than serious issues, so when shopping, focus your inspection on the service history and any evidence of Mercedes-spec maintenance rather than worrying about fundamental mechanical problems.
What to check before buying a 2020 Mercedes Benz Gla 200 Amg Line Premium + A
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.
- 📄 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 Gla 200 Amg Line Premium + A
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (99%) | 327 | 91.3% | 0.22 |
| Other (1%) | 3 | 100% | 0 |
Mileage Distribution
Most 2020 Mercedes Benz Gla 200 Amg Line Premium + A 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 2020 Mercedes Benz Gla 200 Amg Line Premium + A vehicles fall between 16,973 and 30,866 miles.
2020 Mercedes Benz Gla 200 Amg Line Premium + A — Still on the Road
Strong survival — 311 vehicles still getting MOTs in 2025, 99% 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
Found a specific Mercedes Benz Gla 200 Amg Line Premium + A?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.