Mercedes Benz

Mercedes Benz Gla 180 Amg Line Auto (2021)

220 real MOT outcomes analysed • 92.6% first-time pass rate

2021 Mercedes Benz Gla 180 Amg Line Auto

CarHunch analysed 220 real MOT records for the 2021 Mercedes Benz Gla 180 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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This 2021 Mercedes-Benz GLA 180 is performing well above the UK average, with a 90.9% first-time MOT pass rate compared to 80% nationally—a solid endorsement of reliability. The 7.7% rate of dangerous defects is reassuringly low and well below the threshold that would flag serious buyer concerns.

At just under 26,000 miles median and 28,000 miles average, these cars are running light for their age, which explains the minimal failure rate of 0.24 per vehicle. The modest 1.3 advisories per test suggests routine maintenance is keeping these small Mercedes in good shape, so when you're viewing one, prioritise a full service history and ask specifically whether any of those advisories were addressed.

We have limited data for the 2021 Mercedes Benz Gla 180 Amg Line Auto — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 20 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
92.6%
UK average ~80%
Better than average
Dangerous (ever)
7.7%
At least once in MOT history
Check this vehicle
Avg failures / car
0.24
Over 2.4 tests on record
Low
Typical mileage
26k
Middle half: 20k–35k
For context

These stats describe 220 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 220 Mercedes Benz Gla 180 Amg Line Auto cars.

UK

Before you buy a 2021 Mercedes Benz Gla 180 Amg Line Auto

Based on MOT data from 220 vehicles — here's what to check.

  • 📋 Check the full MOT history. 7.7% 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 (96%) 212 92.3% 0.25

Colour Breakdown

Based on 255 Mercedes Benz Gla 180 Amg Line Auto vehicles registered in the UK — across all years. From DVLA registration records.

Black 37.6%
96
Grey 22%
56
Blue 18.8%
48
White 15.7%
40
Silver 3.5%
9
Red 2.4%
6

Mileage Distribution

Most 2021 Mercedes Benz Gla 180 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.

25,666
typical
19,501
low mileage
34,774
high mileage

Half of all 2021 Mercedes Benz Gla 180 Amg Line Auto vehicles fall between 19,501 and 34,774 miles.

Is the mileage you're seeing normal?
Under 19,501 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.
19,501–34,774 miles — normal for age. This is where most 2021 Mercedes Benz Gla 180 Amg Line Autos sit.
Over 46,944 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

MOT History Averages

2.4
Avg MOT tests per vehicle
0.24
Avg failures per vehicle
1.3
Avg advisories per vehicle
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Compare with another model

See how the 2021 Mercedes Benz Gla 180 Amg Line Auto stacks up against a rival.

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