Used Mazda CX-3

What to know before buying: Mazda CX-3

From 3 press tests · updated 12/10/2026

What the reviews say

• The 2016–2021 CX-3 is described as a lively, fuel-efficient small SUV with responsive handling that is easy to park.[1]one source
• The cabin is tight and road and engine noise are noticeable; both the 2015 test and the 2016–2021 review highlight limited space and road noise.[1][3]
• In the 2015 test, the CX-3 felt eager and responsive, but its modest clearance and short suspension travel limited its suitability for poor roads.[3]one source
• For 2016–2021 models, the risk of serious engine or transmission failure is rated low, while the overall NHTSA safety rating was five stars.[1]one source

Typical faults

• On 2016 and 2017 cars, the A/C condenser can leak and stop the system working; an oily spot may sometimes be visible behind the grille.[1]one source

  2016–2017

• On 2016–2021 cars, the Mazda Connect screen may become unresponsive or operate functions by itself; a faulty navigation SD card can cause cold-weather reboots.[1]one source

  2016–2021

• On 2016–2021 cars, a failed mass-airflow sensor can cause the engine to stall or prevent it from starting.[1]one source

  2016–2021

• On 2016–2021 cars, a failed ignition coil can cause engine misfires.[1]one source

  2016–2021

• Noisy wheel bearings are commonly reported on 2016–2021 cars; the hum is clearer at highway speed and changes as the vehicle changes direction.[1]one source

  2016–2021

• Moisture condensation in a door-lock actuator can cause intermittent liftgate opening failure on 2016–2021 cars.[1]one source

  2016–2021

• The rear-view image deserves attention: reports cover both blurred output from camera failure and a recall for a wiring problem that could affect camera operation.[1][2]

Which engine and version to take

• For 2016–2021 cars, the 2.0L Skyactiv four-cylinder petrol with the conventional six-speed automatic is the best-supported choice: both units are described as reliable.[1]one source

What to check at the inspection

• Run the air conditioner and confirm it cools; inspect the condenser through the front grille for an oily leak mark.[1]one source
• Test the full touchscreen for lag, dead areas and ghost inputs; if it reboots, also test the system with the navigation SD card removed.[1]one source
• Check that the rear-view camera image is clear and stable, then use the VIN to verify that all recall work has been completed.[1][2]
• During the test drive, reach highway speed and listen for wheel-bearing hum that changes through bends.[1]one source
• Open and close the liftgate and doors several times, and check the headlights and taillights for moisture.[1]one source

Verdict

Sources

1. [1]samarins.com — Mazda CX-3 2016-2021 review: pros and cons, problems · press
2. [2]carsguide.com.au — Mazda CX-3 Problems & Reliability Issues · press
3. [3]tvnet.lv — TVNET tests: Mazda CX-3 · press

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