Should I check the MOT history before buying a 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A reliable?

Based on MOT data from 540 vehicles, the 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A has a first-time MOT pass rate of 95.7%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Mercedes Benz Gla 220 Amg Line Prem + D 4m A (2021)

540 real MOT outcomes analysed • 95.7% first-time pass rate

2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A

CarHunch analysed 540 real MOT records for the 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A. 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 Mileage Distribution MOT Averages Colour Breakdown Compare Models

This 2021 GLA 220 is a genuinely reliable diesel: a 94.8% first-time pass rate runs well ahead of the UK average of 80%, and dangerous defects show up in just 3.1% of the fleet—low enough that it's not a buyer concern. The mileage profile is spot-on for a three-year-old car, with a median of 26,052 miles suggesting sensible owner usage, and most vehicles rack up only 0.14 failures per test, meaning serious faults are rare.

When you do encounter an advisory, it's typically minor—averaging 1.4 per vehicle—which reflects the brand's build quality and the relative youth of this cohort. Before committing, get a pre-purchase inspection focused on the diesel engine's fuel injectors and glow plugs, the two parts that tend to generate advisories on this platform; everything else points to a well-sorted car.

The 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A passes its MOT first time more often than most UK vehicles (95.7% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass

95.7%

UK average ~80%

Better than average

Dangerous (ever)

3.2%

At least once in MOT history

Check this vehicle

Avg failures / car

0.14

Over 2.2 tests on record

Low

Typical mileage

26k

Middle half: 20k–33k

For context

✅ Good baseline reliability. A 95.7% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 540 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 540 Mercedes Benz Gla 220 Amg Line Prem + D 4m A cars.

Before you buy a 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A

Based on MOT data from 540 vehicles — here's what to check.

📋 Check the full MOT history. 3.2% 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 →
📄 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 Get 20% off via CarHunch

Colour Breakdown

Based on 2,716 Mercedes Benz Gla 220 Amg Line Prem + D 4m A vehicles registered in the UK — across all years. From DVLA registration records.

Black 30.3%

822

Grey 27.2%

738

White 13.7%

371

Silver 10.2%

277

Blue 9.7%

263

Red 9%

245

Mileage Distribution

Most 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A 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.

26,052

typical

19,568

low mileage

33,378

high mileage

Half of all 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m A vehicles fall between 19,568 and 33,378 miles.

Is the mileage you're seeing normal?

✓ Under 19,568 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.

✓ 19,568–33,378 miles — normal for age. This is where most 2021 Mercedes Benz Gla 220 Amg Line Prem + D 4m As sit.

⚠ Over 45,060 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

2.2

Avg MOT tests per vehicle

0.14

Avg failures per vehicle

1.4

Avg advisories per vehicle

Other model years — Mercedes Benz Gla 220 Amg Line Prem + D 4m A: All Gla 220 Amg Line Prem + D 4m A years → Which year to buy? →

2020 2022 2023 2024 2025

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