Should I check the MOT history before buying a 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4?

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 Mazda Cx 30 GT Sport Tech MHEV 4x4?

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 Mazda Cx 30 GT Sport Tech MHEV 4x4?

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 Mazda Cx 30 GT Sport Tech MHEV 4x4 reliable?

Based on MOT data from 133 vehicles, the 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4 has a first-time MOT pass rate of 93.7%, 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 Mazda Cx 30 GT Sport Tech MHEV 4x4?

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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Mazda Cx 30 GT Sport Tech MHEV 4x4 (2021)

133 real MOT outcomes analysed • 93.7% first-time pass rate

2021 Mazda Cx 30 GT Sport Tech MHEV 4x4

CarHunch analysed 133 real MOT records for the 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4. 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 MOT Averages Compare Models

This 2021 Mazda CX-30 is a notably reliable proposition, with a first-time MOT pass rate of 92.9% — nearly 13 percentage points ahead of the UK average of 80%. The dangerous defect rate sits at just 5.3%, well below the typical concern threshold, so safety issues are not a red flag here.

At 24,584 miles average, these cars have covered reasonable distance for their age, yet they're proving durable with only 0.21 failures per vehicle on record. The 1.6 advisories per car suggest minor wear rather than systemic problems, so if you're shopping for one, a pre-purchase inspection focusing on the advisory items (typically suspension and wear parts) will give you confidence in what you're buying.

We have limited data for the 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4 — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 20 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

93.7%

UK average ~80%

Better than average

Dangerous (ever)

5.3%

At least once in MOT history

Check this vehicle

Avg failures / car

0.21

Over 2.4 tests on record

Low

Typical mileage

22k

Middle half: 16k–31k

For context

These stats describe 133 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 133 Mazda Cx 30 GT Sport Tech MHEV 4x4 cars.

Before you buy a 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4

Based on MOT data from 133 vehicles — here's what to check.

📋 Check the full MOT history. 5.3% 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
Petrol (94%)	125	93.6%	0.21

Mileage Distribution

Most 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4 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.

22,481

typical

16,290

low mileage

31,379

high mileage

Half of all 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4 vehicles fall between 16,290 and 31,379 miles.

Is the mileage you're seeing normal?

✓ Under 16,290 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.

✓ 16,290–31,379 miles — normal for age. This is where most 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4s sit.

⚠ Over 42,361 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

2.4

Avg MOT tests per vehicle

0.21

Avg failures per vehicle

1.6

Avg advisories per vehicle

Compare with another model

See how the 2021 Mazda Cx 30 GT Sport Tech MHEV 4x4 stacks up against a rival.

A solid choice — agree?