Should I check the MOT history before buying a 2021 Mercedes Benz Glc 300 Amg Line De 4matic 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 Glc 300 Amg Line De 4matic 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 Glc 300 Amg Line De 4matic 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.

Do I need an HPI check when buying a 2021 Mercedes Benz Glc 300 Amg Line De 4matic 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 Glc 300 Amg Line De 4matic A (2021)

Q: Is the 2021 Mercedes Benz Glc 300 Amg Line De 4matic A reliable?

Based on MOT data from 173 vehicles, the 2021 Mercedes Benz Glc 300 Amg Line De 4matic A has a first-time MOT pass rate of 94.5%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

173 real MOT outcomes analysed • 94.5% first-time pass rate

2021 Mercedes Benz Glc 300 Amg Line De 4matic A

CarHunch analysed 173 real MOT records for the 2021 Mercedes Benz Glc 300 Amg Line De 4matic A. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution MOT Averages Compare Models

Limited data for this trim variant. The DVLA records this vehicle under a specific trim-level name with only 173 vehicles on record — some statistics may not be reliable at this sample size.

See the full 2021 MERCEDES-BENZ GLC (2,828 vehicles)

We have limited data for the 2021 Mercedes Benz Glc 300 Amg Line De 4matic A — treat the figures below as indicative rather than definitive.

⚠️ About 1 in 12 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

94.5%

UK average ~80%

Better than average

Dangerous (ever)

9.3%

At least once in MOT history

Check this vehicle

Avg failures / car

0.14

Over 2 tests on record

Low

Typical mileage

38k

Middle half: 26k–50k

For context

These stats describe 173 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 173 Mercedes Benz Glc 300 Amg Line De 4matic A cars.

Before you buy a 2021 Mercedes Benz Glc 300 Amg Line De 4matic A

Based on MOT data from 173 vehicles — here's what to check.

📋 Check the full MOT history. 9.3% 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 →
📄 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

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Electric Diesel (99%)	172	94.4%	0.15

Mileage Distribution

Most 2021 Mercedes Benz Glc 300 Amg Line De 4matic 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.

37,645

typical

25,981

low mileage

49,896

high mileage

Half of all 2021 Mercedes Benz Glc 300 Amg Line De 4matic A vehicles fall between 25,981 and 49,896 miles.

Is the mileage you're seeing normal?

✓ Under 25,981 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.

✓ 25,981–49,896 miles — normal for age. This is where most 2021 Mercedes Benz Glc 300 Amg Line De 4matic As sit.

⚠ Over 67,359 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

Avg MOT tests per vehicle

0.14

Avg failures per vehicle

1.3

Avg advisories per vehicle

Other model years — Mercedes Benz Glc 300 Amg Line De 4matic A: All Glc 300 Amg Line De 4matic A years → Which year to buy? →

2020 2022

Or browse all models: Mercedes Benz →

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See how the 2021 Mercedes Benz Glc 300 Amg Line De 4matic A stacks up against a rival.

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