Should I check the MOT history before buying a 2021 Mercedes Benz Amg Cla 35 Premium + 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 Amg Cla 35 Premium + 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 Amg Cla 35 Premium + 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 Amg Cla 35 Premium + 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.

CarHunch

Get Started

Mercedes Benz Amg Cla 35 Premium + 4matic A (2021)

Q: Is the 2021 Mercedes Benz Amg Cla 35 Premium + 4matic A reliable?

Based on MOT data from 157 vehicles, the 2021 Mercedes Benz Amg Cla 35 Premium + 4matic A has a first-time MOT pass rate of 88.5%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

157 real MOT outcomes analysed • 88.5% first-time pass rate

2021 Mercedes Benz Amg Cla 35 Premium + 4matic A

CarHunch analysed 157 real MOT records for the 2021 Mercedes Benz Amg Cla 35 Premium + 4matic A. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

On this page

AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Compare Models

This 2021 Mercedes-AMG CLA 35 posts a first-time pass rate of 81.2%, marginally above the UK average of 80%, suggesting broadly typical reliability for a performance compact saloon. However, 16.6% of these cars have recorded a dangerous defect at some point—notably higher than the typical threshold—so a pre-purchase inspection by a Mercedes specialist is essential.

At just over 26,600 miles median, these vehicles are relatively low-mileage for their age, yet they're already averaging 0.35 failures and 1.3 advisories per test, indicating early wear issues common to turbocharged performance models. Budget for regular brake and suspension checks, and always review the full MOT history before committing to purchase.

We have limited data for the 2021 Mercedes Benz Amg Cla 35 Premium + 4matic A — 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

88.5%

UK average ~80%

Better than average

Dangerous (ever)

16.6%

At least once in MOT history

Check this vehicle

Avg failures / car

0.35

Over 2.4 tests on record

Low

Typical mileage

27k

Middle half: 21k–35k

For context

These stats describe 157 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.

Average reliability — agree?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 157 Mercedes Benz Amg Cla 35 Premium + 4matic A cars.

Before you buy a 2021 Mercedes Benz Amg Cla 35 Premium + 4matic A

Based on MOT data from 157 vehicles — here's what to check.

📋 Check the full MOT history. 16.6% 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 (99%)	155	88.7%	0.35

Mileage Distribution

Most 2021 Mercedes Benz Amg Cla 35 Premium + 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.

26,667

typical

20,955

low mileage

34,663

high mileage

Half of all 2021 Mercedes Benz Amg Cla 35 Premium + 4matic A vehicles fall between 20,955 and 34,663 miles.

Is the mileage you're seeing normal?

✓ Under 20,955 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.

✓ 20,955–34,663 miles — normal for age. This is where most 2021 Mercedes Benz Amg Cla 35 Premium + 4matic As sit.

⚠ Over 46,795 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2021 Mercedes Benz Amg Cla 35 Premium + 4matic A — Still on the Road

Almost all 2021 Mercedes Benz Amg Cla 35 Premium + 4matic As are still on the road.

Strong survival — 136 vehicles still getting MOTs in 2025, 97% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

2.4

Avg MOT tests per vehicle

0.35

Avg failures per vehicle

1.3

Avg advisories per vehicle

Other model years — Mercedes Benz Amg Cla 35 Premium + 4matic A: All Amg Cla 35 Premium + 4matic A years → Which year to buy? →

2020 2023

Or browse all models: Mercedes Benz →

Compare with another model

See how the 2021 Mercedes Benz Amg Cla 35 Premium + 4matic A stacks up against a rival.

Average reliability — agree?