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

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 MHEV?

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 MHEV?

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 MHEV reliable?

Based on MOT data from 982 vehicles, the 2021 Mazda Cx 30 GT Sport MHEV 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 Mazda Cx 30 GT Sport MHEV?

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 MHEV (2021)

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

2021 Mazda Cx 30 GT Sport MHEV

CarHunch analysed 982 real MOT records for the 2021 Mazda Cx 30 GT Sport MHEV. 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 Colour Breakdown Compare Models

The 2021 Mazda CX-30 GT Sport MHEV is a genuinely reliable proposition, with a 94.3% first-time MOT pass rate that sits well ahead of the UK average of 80%—only 4.6% of these cars have ever recorded a dangerous defect, which is reassuringly low. The petrol engine shows no weakness here, maintaining that same 94.3% pass rate across the 953 vehicles tested.

At a median mileage of just 24,207 miles for a three-year-old car, these are lightly used examples, which explains why the average car racks up only 0.17 failures per test. When issues do crop up, they're typically minor: the 1.9 average advisories per vehicle suggest routine wear items rather than structural problems, so budget for scheduled maintenance but don't expect surprise repair bills—a pre-purchase inspection focusing on service history will tell you everything you need to know.

The 2021 Mazda Cx 30 GT Sport MHEV 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)

4.6%

At least once in MOT history

Check this vehicle

Avg failures / car

0.17

Over 2.2 tests on record

Low

Typical mileage

24k

Middle half: 18k–32k

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.

🔧 Expect consumable spend. An average of 1.9 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

These stats describe 982 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 982 Mazda Cx 30 GT Sport MHEV cars.

Before you buy a 2021 Mazda Cx 30 GT Sport MHEV

Based on MOT data from 982 vehicles — here's what to check.

📋 Check the full MOT history. 4.6% 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 (97%)	953	94.7%	0.17

Colour Breakdown

Based on 2,905 Mazda Cx 30 GT Sport MHEV vehicles registered in the UK — across all years. From DVLA registration records.

Grey 32.6%

947

Red 29.3%

850

Blue 14.7%

426

Black 9.5%

275

White 8%

231

Silver 6.1%

176

Mileage Distribution

Most 2021 Mazda Cx 30 GT Sport MHEV 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.

24,207

typical

17,956

low mileage

32,094

high mileage

Half of all 2021 Mazda Cx 30 GT Sport MHEV vehicles fall between 17,956 and 32,094 miles.

Is the mileage you're seeing normal?

✓ Under 17,956 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.

✓ 17,956–32,094 miles — normal for age. This is where most 2021 Mazda Cx 30 GT Sport MHEVs sit.

⚠ Over 43,326 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

2.2

Avg MOT tests per vehicle

0.17

Avg failures per vehicle

1.9

Avg advisories per vehicle

Other model years — Mazda Cx 30 GT Sport MHEV: All Cx 30 GT Sport MHEV years → Which year to buy? →

2020 2022 2023

Or browse all models: Mazda →

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

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