Should I check the MOT history before buying a 2021 Mercedes Benz Glc 300 Amg Line Prem + 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 Glc 300 Amg Line Prem + 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 Glc 300 Amg Line Prem + 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 Glc 300 Amg Line Prem + 4m A reliable?

Based on MOT data from 339 vehicles, the 2021 Mercedes Benz Glc 300 Amg Line Prem + 4m A has a first-time MOT pass rate of 94.7%, 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 Glc 300 Amg Line Prem + 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 Glc 300 Amg Line Prem + 4m A (2021)

339 real MOT outcomes analysed • 94.7% first-time pass rate

2021 Mercedes Benz Glc 300 Amg Line Prem + 4m A

CarHunch analysed 339 real MOT records for the 2021 Mercedes Benz Glc 300 Amg Line Prem + 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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Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution MOT Averages Colour Breakdown Compare Models

Limited data for this trim variant. The DVLA records this vehicle under a specific trim-level name with only 339 vehicles on record — some statistics may not be reliable at this sample size.

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

The 2021 Mercedes Benz Glc 300 Amg Line Prem + 4m A passes its MOT first time more often than most UK vehicles (94.7% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass

94.7%

UK average ~80%

Better than average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.13

Over 1.9 tests on record

Low

Typical mileage

27k

Middle half: 19k–36k

For context

✅ Good baseline reliability. A 94.7% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 339 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 339 Mercedes Benz Glc 300 Amg Line Prem + 4m A cars.

Before you buy a 2021 Mercedes Benz Glc 300 Amg Line Prem + 4m A

Based on MOT data from 339 vehicles — here's what to check.

📋 Check the full MOT history. 5% 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
Hybrid Electric (Clean) (99%)	334	94.6%	0.13

Colour Breakdown

Based on 1,913 Mercedes Benz Glc 300 Amg Line Prem + 4m A vehicles registered in the UK — across all years. From DVLA registration records.

Black 34.9%

667

Grey 23.7%

454

White 16.7%

319

Silver 12%

230

Blue 9.8%

188

Red 2.9%

Mileage Distribution

Most 2021 Mercedes Benz Glc 300 Amg Line Prem + 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.

26,879

typical

18,998

low mileage

35,505

high mileage

Half of all 2021 Mercedes Benz Glc 300 Amg Line Prem + 4m A vehicles fall between 18,998 and 35,505 miles.

Is the mileage you're seeing normal?

✓ Under 18,998 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.

✓ 18,998–35,505 miles — normal for age. This is where most 2021 Mercedes Benz Glc 300 Amg Line Prem + 4m As sit.

⚠ Over 47,931 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

1.9

Avg MOT tests per vehicle

0.13

Avg failures per vehicle

0.9

Avg advisories per vehicle

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

2019 2020 2022 2023

Or browse all models: Mercedes Benz →

Compare with another model

See how the 2021 Mercedes Benz Glc 300 Amg Line Prem + 4m A stacks up against a rival.

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