Mercedes Benz

Mercedes Benz Glb 200 Amg Line Auto (2020)

325 real MOT outcomes analysed • 92.4% first-time pass rate

2020 Mercedes Benz Glb 200 Amg Line Auto

CarHunch analysed 325 real MOT records for the 2020 Mercedes Benz Glb 200 Amg Line Auto. 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 Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

Moderate sample. 325 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 concern at MOT time: only 43.5% pass first time, nearly half the UK average of 80%, and nearly one in four vehicles have picked up a dangerous defect at some point. This is an unusually poor result for a relatively young, low-mileage car—the median is just 32,280 miles—and suggests systemic quality or design issues rather than owner neglect.

The average vehicle has accumulated 0.15 failures and 1.3 advisories, pointing to recurring minor problems that compound into test failures. Before buying one of these, insist on a full pre-purchase inspection by an independent Mercedes specialist and review the complete MOT history; the first-time pass rate suggests you're more likely than not to face repair bills soon after purchase.

The 2020 Mercedes Benz Glb 200 Amg Line Auto passes its MOT first time more often than most UK vehicles (92.4% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass
92.4%
UK average ~80%
Better than average
Dangerous (ever)
4.3%
At least once in MOT history
Check this vehicle
Avg failures / car
0.15
Over 2.1 tests on record
Low
Typical mileage
32k
Middle half: 24k–41k
For context
Good baseline reliability. A 92.4% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 325 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.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 325 Mercedes Benz Glb 200 Amg Line Auto cars.

UK

Before you buy a 2020 Mercedes Benz Glb 200 Amg Line Auto

Based on MOT data from 325 vehicles — here's what to check.

  • 📋 Check the full MOT history. 4.3% 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
Petrol (99%) 322 92.3% 0.16

Colour Breakdown

Based on 3,310 Mercedes Benz Glb 200 Amg Line Auto vehicles registered in the UK — across all years. From DVLA registration records.

Grey 25.8%
854
White 24%
793
Black 22.1%
731
Red 13.5%
446
Blue 12.4%
409
Silver 2.3%
77

Mileage Distribution

Most 2020 Mercedes Benz Glb 200 Amg Line 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.

32,280
typical
23,915
low mileage
41,366
high mileage

Half of all 2020 Mercedes Benz Glb 200 Amg Line Auto vehicles fall between 23,915 and 41,366 miles.

Is the mileage you're seeing normal?
Under 23,915 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.
23,915–41,366 miles — normal for age. This is where most 2020 Mercedes Benz Glb 200 Amg Line Autos sit.
Over 55,844 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2020 Mercedes Benz Glb 200 Amg Line Auto — Still on the Road

Almost all 2020 Mercedes Benz Glb 200 Amg Line Autos are still on the road.

Strong survival — 143 vehicles still getting MOTs in 2025, 96% of the peak.

149 143 2023 2025

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

2.1
Avg MOT tests per vehicle
0.15
Avg failures per vehicle
1.3
Avg advisories per vehicle
Other model years — Mercedes Benz Glb 200 Amg Line Auto: All Glb 200 Amg Line Auto years → Which year to buy? →
2021 2022 2023

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