What reliability score does the Mazda Mazda3 get?

6.7 out of 10, scored from the 8 faults we document for this model and how severe each one is.

Is the 2014–2018 Mazda Mazda3 reliable?

Scored from 8 documented faults · reviewed by the VehicleFaults Research Team

Quick answer

6.7/ 10

Solid

On our documented-fault scoring the Mazda Mazda3 rates 6.7 out of 10 · solid. We hold 8 known faults for it and 1 are rated high severity, so the risk is real but contained. The weak points cluster around body, electrical and engine. A well-serviced example with evidence for the big-ticket items is usually a safe buy; the score describes the model, not the specific car in front of you.

Verdict · Buy, but check the known weak points

What the score is built from

Critical: 0
High: 1
Medium: 2
Low: 5

Weak points cluster around body, electrical, engine, suspension.

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The faults that decide it

Engine (2.2 Skyactiv-D)High

Premature exhaust camshaft lobe wear leading to metal swarf in the oil, vacuum pump failure, and low oil pressure warnings.

Typically appears: 60,000-100,000 miles
What to inspect: Start the engine from cold. Listen closely for a distinct metallic tapping or clattering from the top end. Check the dashboard for any delayed oil pressure warning lights.
Typical repair: Exhaust / emissions component · £200–£950

BrakesMedium

Rear brake calipers bind due to Electronic Parking Brake (EPB) motor failure or corrosion on facelift (BN) models, causing brake drag and premature pad wear.

Typically appears: 50,000-80,000 miles
What to inspect: Engage and disengage the EPB switch with the ignition on. Listen for smooth motor operation at both rear wheels. Push the car slightly in neutral to check for binding.
Typical repair: Brakes (discs, pads, caliper) · £200–£800

Interior / ElectricalMedium

'Ghost touch' on the infotainment display where the screen registers phantom inputs, changing radio stations or settings autonomously, particularly in warm weather.

Typically appears: 5-7 years
What to inspect: Turn on the ignition, leave the infotainment system on the home screen, and observe for 60 seconds without touching the commander dial or screen to see if menus change autonomously.
Typical repair: Suspension refresh (per axle) · £250–£1,100

BodyLow

Clearcoat/paint peeling on some colors.

Typically appears: Age-related
What to inspect: Inspect roof and hood for peeling.
Typical repair: Body & corrosion repair · £250–£1,800

ElectricalLow

MZD Connect infotainment lag.

Typically appears: Any
What to inspect: Test the touchscreen and commander dial.
Typical repair: Infotainment repair or software fix · £120–£1,200

Costs are indicative UK independent-garage bands for budgeting and negotiation · never a quote.

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Quick answer

What the score is built from

The faults that decide it

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