Should I check the MOT history before buying a 2018 Mazda Mx 5?

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 2018 Mazda Mx 5?

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 2018 Mazda Mx 5?

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 2018 Mazda Mx 5 reliable?

Based on MOT data from 4,248 vehicles, the 2018 Mazda Mx 5 has a first-time MOT pass rate of 93.1%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2018 Mazda Mx 5?

The most frequently recorded MOT issues on the 2018 Mazda Mx 5 are: Nearside Rear Tyre worn close to legal limit/worn on edge (23.3% of vehicles), Offside Front Tyre slightly damaged/cracking or perishing (23% of vehicles), Front Brake pad(s) wearing thin (22.7% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2018 Mazda Mx 5?

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 Mx 5 (2018)

4,248 real MOT outcomes analysed • 93.1% first-time pass rate

2018 Mazda Mx 5

CarHunch analysed 4,248 real MOT records for the 2018 Mazda Mx 5. 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 Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2018 Mazda MX-5 is a genuinely reliable car, with a 93.1% first-time pass rate that sits well clear of the UK average of 80%. Only 12.4% of cars have ever recorded a dangerous defect, which is reassuringly low and suggests owners aren't walking into serious safety issues.

These cars are running light mileage for their age—averaging just 22,041 miles—which explains why they fail so infrequently and why advisories (4.4 per vehicle) tend to be minor wear items rather than structural problems. When you're shopping for one, focus your inspection on the basics like brakes and fluid condition rather than expecting hidden mechanical gremlins.

The 2018 Mazda Mx 5 passes its MOT first time more often than most UK vehicles (93.1% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ 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

93.1%

UK average ~80%

Better than average

Dangerous (ever)

12.4%

At least once in MOT history

Check this vehicle

Avg failures / car

0.44

Over 5.5 tests on record

Low

Typical mileage

20k

Middle half: 13k–29k

For context

✅ Good baseline reliability. A 93.1% 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 4.4 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 4,248 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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What tends to go wrong

Across 4,248 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 23.3%

Nearside Rear Tyre worn close to legal limit/worn on edge · Offside Front Tyre slightly damaged/cracking or perishing · Nearside Front Tyre slightly damaged/cracking or perishing · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Brake wear 22.7%

Front Brake pad(s) wearing thin · Rear Brake disc worn, pitted or scored, but not seriously weakened · Offside Rear Brake disc worn, pitted or scored, but not seriously weakened · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Other issues 10.4%

COVID-19 6 MONTH EXTENSION · Windscreen damaged but not adversely affecting driver's view

Data covers a 3-year window centred on 2018.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 4,248 Mazda Mx 5 cars.

Before you buy a 2018 Mazda Mx 5

Based on MOT data from 4,248 vehicles — here's what to check.

📋 Check the full MOT history. 12.4% 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%)	4,247	93.1%	0.44

Colour Breakdown

Based on 160,670 Mazda Mx 5 vehicles registered in the UK — across all years. From DVLA registration records.

Red 22.5%

36,187

Silver 18.2%

29,219

Blue 17.2%

27,661

Black 12.7%

20,412

Green 10.6%

17,074

Grey 9.8%

15,805

White 4.9%

7,909

Gold 1.2%

1,980

Yellow 1%

1,671

Maroon 0.8%

1,265

Orange 0.6%

1,043

Multi-colour 0.3%

444

Mileage Distribution

Most 2018 Mazda Mx 5 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.

19,991

typical

13,258

low mileage

28,679

high mileage

Half of all 2018 Mazda Mx 5 vehicles fall between 13,258 and 28,679 miles.

Is the mileage you're seeing normal?

✓ Under 13,258 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.

✓ 13,258–28,679 miles — normal for age. This is where most 2018 Mazda Mx 5s sit.

⚠ Over 38,716 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2018 Mazda Mx 5 — Still on the Road

Almost all 2018 Mazda Mx 5s are still on the road.

Strong survival — 4,110 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 2021–2025.

MOT History Averages

5.5

Avg MOT tests per vehicle

0.44

Avg failures per vehicle

4.4

Avg advisories per vehicle

Other model years — Mazda Mx 5: All Mx 5 years → Which year to buy? →

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