Should I check the MOT history before buying a 2021 Mazda Cx 5 SE L?

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 5 SE L?

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 5 SE L?

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 5 SE L reliable?

Based on MOT data from 410 vehicles, the 2021 Mazda Cx 5 SE L has a first-time MOT pass rate of 92.2%, 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 5 SE L?

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 5 SE L (2021)

410 real MOT outcomes analysed • 92.2% first-time pass rate

2021 Mazda Cx 5 SE L

CarHunch analysed 410 real MOT records for the 2021 Mazda Cx 5 SE L. 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

Moderate sample. 410 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.

The 2021 Mazda CX-5 SE-L is a genuinely reliable proposition, with a 91.5% first-time pass rate that sits well above the UK average of 80%—this is the kind of margin that suggests solid engineering and build quality. Only 7.8% of vehicles in this cohort have ever recorded a dangerous defect, which is reassuringly low and well below the threshold that would flag a systemic concern.

At 31,015 miles on average, these cars are running fairly light for their age, which explains why they're averaging just 0.26 failures per vehicle and seeing mostly minor advisories (2.7 per car, typically brake wear and fluid top-ups). If you're shopping for one, pull the full MOT history to check whether advisories are being addressed promptly—this model's track record suggests a straightforward ownership experience with no red flags.

The 2021 Mazda Cx 5 SE L passes its MOT first time more often than most UK vehicles (92.2% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ 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

92.2%

UK average ~80%

Better than average

Dangerous (ever)

7.8%

At least once in MOT history

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Avg failures / car

0.26

Over 2.4 tests on record

Low

Typical mileage

30k

Middle half: 22k–37k

For context

✅ Good baseline reliability. A 92.2% 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 2.7 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 410 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.

A solid choice — agree?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 410 Mazda Cx 5 SE L cars.

Before you buy a 2021 Mazda Cx 5 SE L

Based on MOT data from 410 vehicles — here's what to check.

📋 Check the full MOT history. 7.8% 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 (96%)	392	91.8%	0.28

Colour Breakdown

Based on 978 Mazda Cx 5 SE L vehicles registered in the UK — across all years. From DVLA registration records.

Blue 25.2%

246

Grey 24%

235

Red 18.7%

183

White 17.6%

172

Black 12.3%

120

Silver 1.3%

Bronze 0.9%

Mileage Distribution

Most 2021 Mazda Cx 5 SE L 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.

29,546

typical

22,395

low mileage

37,375

high mileage

Half of all 2021 Mazda Cx 5 SE L vehicles fall between 22,395 and 37,375 miles.

Is the mileage you're seeing normal?

✓ Under 22,395 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.

✓ 22,395–37,375 miles — normal for age. This is where most 2021 Mazda Cx 5 SE Ls sit.

⚠ Over 50,456 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

0.26

Avg failures per vehicle

2.7

Avg advisories per vehicle

Other model years — Mazda Cx 5 SE L: All Cx 5 SE L years → Which year to buy? →

2020 2022

Or browse all models: Mazda →

Compare with another model

See how the 2021 Mazda Cx 5 SE L stacks up against a rival.

A solid choice — agree?