Should I check the MOT history before buying a 2020 Mercedes Benz Amg A 45 S 4matic+ Auto?

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 2020 Mercedes Benz Amg A 45 S 4matic+ Auto?

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 2020 Mercedes Benz Amg A 45 S 4matic+ Auto?

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 2020 Mercedes Benz Amg A 45 S 4matic+ Auto reliable?

Based on MOT data from 250 vehicles, the 2020 Mercedes Benz Amg A 45 S 4matic+ Auto has a first-time MOT pass rate of 91.4%, 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 2020 Mercedes Benz Amg A 45 S 4matic+ Auto?

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 Amg A 45 S 4matic+ Auto (2020)

250 real MOT outcomes analysed • 91.4% first-time pass rate

2020 Mercedes Benz Amg A 45 S 4matic+ Auto

CarHunch analysed 250 real MOT records for the 2020 Mercedes Benz Amg A 45 S 4matic+ 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

The 2020 Mercedes-AMG A45 S posts a first-time MOT pass rate of 84.5%, which is noticeably better than the UK average of 80%, suggesting these cars are well-maintained and mechanically sound overall. However, 14.4% have encountered dangerous defects at some point, so a pre-purchase inspection remains essential to catch any serious issues before you commit.

At an average mileage of 29,575 miles for a four-year-old car, these examples are running slightly below typical wear-and-tear, which bodes well for longevity. The average 0.36 failures and 1.8 advisories per vehicle indicate that when problems do arise, they're usually minor—so budget for routine fixes rather than major repairs, but always verify the full MOT history when viewing a specific car.

We have limited data for the 2020 Mercedes Benz Amg A 45 S 4matic+ Auto — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 8 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

91.4%

UK average ~80%

Better than average

Dangerous (ever)

14.4%

At least once in MOT history

Check this vehicle

Avg failures / car

0.36

Over 3.4 tests on record

Low

Typical mileage

28k

Middle half: 21k–36k

For context

These stats describe 250 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 250 Mercedes Benz Amg A 45 S 4matic+ Auto cars.

Before you buy a 2020 Mercedes Benz Amg A 45 S 4matic+ Auto

Based on MOT data from 250 vehicles — here's what to check.

📋 Check the full MOT history. 14.4% 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
Petrol (100%)	249	91.4%	0.36

Colour Breakdown

Based on 307 Mercedes Benz Amg A 45 S 4matic+ Auto vehicles registered in the UK — across all years. From DVLA registration records.

Grey 29.3%

Black 25.1%

White 20.8%

Yellow 10.1%

Blue 8.8%

Silver 3.6%

Red 2.3%

Mileage Distribution

Most 2020 Mercedes Benz Amg A 45 S 4matic+ 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.

27,912

typical

20,712

low mileage

35,735

high mileage

Half of all 2020 Mercedes Benz Amg A 45 S 4matic+ Auto vehicles fall between 20,712 and 35,735 miles.

Is the mileage you're seeing normal?

✓ Under 20,712 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.

✓ 20,712–35,735 miles — normal for age. This is where most 2020 Mercedes Benz Amg A 45 S 4matic+ Autos sit.

⚠ Over 48,242 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 Amg A 45 S 4matic+ Auto — Still on the Road

Almost all 2020 Mercedes Benz Amg A 45 S 4matic+ Autos are still on the road.

Strong survival — 217 vehicles still getting MOTs in 2025, 99% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.

MOT History Averages

3.4

Avg MOT tests per vehicle

0.36

Avg failures per vehicle

1.8

Avg advisories per vehicle

Compare with another model

See how the 2020 Mercedes Benz Amg A 45 S 4matic+ Auto stacks up against a rival.

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