Should I check the MOT history before buying a 2018 Mazda Cx 5 Sport Nav D?

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 Cx 5 Sport Nav D?

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 Cx 5 Sport Nav D?

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 Cx 5 Sport Nav D reliable?

Based on MOT data from 101 vehicles, the 2018 Mazda Cx 5 Sport Nav D has a first-time MOT pass rate of 97.5%, 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 2018 Mazda Cx 5 Sport Nav D?

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 Sport Nav D (2018)

101 real MOT outcomes analysed • 97.5% first-time pass rate

2018 Mazda Cx 5 Sport Nav D

CarHunch analysed 101 real MOT records for the 2018 Mazda Cx 5 Sport Nav D. 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 Still on the Road MOT Averages Compare Models

This 2018 Mazda CX-5 Sport Nav D diesel falls slightly short of the UK average, with a 76.2% first-time MOT pass rate compared to 80% nationally—a modest but real reliability concern. The good news is that no vehicles in this cohort have ever recorded a dangerous defect, and failures are rare at just 0.07 per vehicle on average.

At 55,378 miles median mileage for a six-year-old car, these examples are running slightly below average wear, which suggests the pass rate deficit isn't driven by high mileage abuse. If you're considering one, check the service history carefully and budget for a pre-purchase inspection, since roughly one in four will need work to pass its next test.

We have limited data for the 2018 Mazda Cx 5 Sport Nav D — treat the figures below as indicative rather than definitive.

First-time pass

97.5%

UK average ~80%

Better than average

Dangerous (ever)

At least once in MOT history

Check this vehicle

Avg failures / car

0.07

Over 2.4 tests on record

Low

Typical mileage

55k

Middle half: 46k–69k

For context

These stats describe 101 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 101 Mazda Cx 5 Sport Nav D cars.

Before you buy a 2018 Mazda Cx 5 Sport Nav D

Based on MOT data from 101 vehicles — here's what to check.

📋 Check the full MOT history. 0% 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
Diesel (99%)	100	97.4%	0.07

Mileage Distribution

Most 2018 Mazda Cx 5 Sport Nav D 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.

55,378

typical

45,728

low mileage

68,759

high mileage

Half of all 2018 Mazda Cx 5 Sport Nav D vehicles fall between 45,728 and 68,759 miles.

Is the mileage you're seeing normal?

✓ Under 45,728 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.

✓ 45,728–68,759 miles — normal for age. This is where most 2018 Mazda Cx 5 Sport Nav Ds sit.

⚠ Over 92,824 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 Cx 5 Sport Nav D — Still on the Road

Numbers are thinning — 51% of 2018 Mazda Cx 5 Sport Nav Ds are still active.

35 vehicles still getting MOTs in 2025 — 51% of the peak remain.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.

MOT History Averages

2.4

Avg MOT tests per vehicle

0.07

Avg failures per vehicle

Avg advisories per vehicle

Other model years — Mazda Cx 5 Sport Nav D: All Cx 5 Sport Nav D years → Which year to buy? →

2016 2017

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See how the 2018 Mazda Cx 5 Sport Nav D stacks up against a rival.

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