Quick Facts — Mazda CX-3

Est. On UK Roads
55,000+
Years Made
2015–2023
Common Engines
2.0 Skyactiv-G, 1.8 Skyactiv-D

6 Most Common Mazda CX-3 Problems

These are the faults most frequently seen on the Mazda CX-3 by UK garages — ranked by how commonly they occur and what they cost to fix.

1
DPF Blockage (1.8 Skyactiv-D)
High Priority
The diesel CX-3 is particularly susceptible to DPF blockages given its typical urban use profile. The small diesel engine rarely gets sufficient run time to fully regenerate the DPF on city journeys.
💷 Typical repair cost: £100–£900
2
Carbon Buildup (2.0 Skyactiv-G)
Watch
The 2.0 Skyactiv-G can develop intake valve carbon deposits on higher mileage examples.
💷 Typical repair cost: £200–£500
3
Rear Suspension Noise
Watch
A knocking or creaking noise from the rear suspension is reported on some CX-3 models — worn torsion beam bushes are the usual cause.
💷 Typical repair cost: £80–£250
4
Front Wiper Blade Judder
Low Priority
Front wiper blade streaking and judder is a known minor issue on some CX-3 models — usually resolved with new blades.
💷 Typical repair cost: £20–£50
5
Air Con Recharge
Low Priority
Air con refrigerant loss on older examples.
💷 Typical repair cost: £50–£120
6
Minor Interior Plastic Rattle
Low Priority
Some CX-3 owners report minor interior rattles from dashboard plastics over rough surfaces.
💷 Typical repair cost: £0–£50

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Mazda CX-3 — MOT Tips

DPF warning is an automatic fail on diesel models. Check EML — any emissions-related faults are MOT-relevant. Inspect rear suspension for knocking — worn bushes are MOT advisories. Check all wiper functions — both are MOT items.

Engine management light on before your MOT? It's an automatic fail. Run a MotorLoom diagnostic for £1.99 to get the likely cause and repair cost before booking the test.

Mazda CX-3 Tyres

Most Mazda CX-3 models run 215/60 R16 or 215/55 R18 depending on trim level and year. Always check the placard inside the driver's door for the exact size for your vehicle.

Summary

The CX-3 is a quality compact crossover, best suited to drivers who prioritise driving feel and build quality over maximum interior space. The 2.0 Skyactiv-G petrol is the most reliable choice. Avoid the diesel for city use. A strong used buy now that prices have dropped significantly since discontinuation.

If your Mazda CX-3 has a warning light on or a symptom you can't identify, a MotorLoom diagnostic report for £1.99 gives you likely fault causes, UK repair cost estimates and MOT risk — instantly.

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Other Mazda Models

Mazda 3 → Mazda 6 → Mazda CX-5 → Mazda CX-30 →