IsItAGoodCar
Reliability Guide

Common Problems with the
2015 Mazda CX-3 (DK)

DK CX-3 went on UK sale on 19 June 2015 on the Skyactiv-B platform in SE, SE Nav, SE-L, SE-L Nav and Sport Nav grades, pairing 120PS 2WD or 150PS AWD 2.0 Skyactiv-G petrols with a 105PS 1.5 Skyactiv-D diesel.

What changed for 2015

  • •UK launch on 19 June 2015 from £17,595 across SE, SE Nav, SE-L, SE-L Nav and Sport Nav trims, sitting 50mm higher than the DJ Mazda2
  • •Naturally aspirated 2.0-litre Skyactiv-G (PE-VPS) petrol in 120PS 2WD (6-speed manual or auto) and 150PS AWD manual Sport Nav forms
  • •1.5-litre Skyactiv-D (S5-DPTS) 105PS diesel offered in 2WD or Sport Nav AWD, prior to 2017 G-Vectoring Control and GT Sport additions
  • •Standard 7-inch MZD-Connect display with rotary controller; Sport Nav added LED headlamps, Bose audio and an Active Driving Display HUD

Common MOT watch-outs

  • !Misted or leaking shock absorbers and knocking front anti-roll bar drop links, aggravated by firm 18-inch Sport Nav wheels on potholed roads
  • !DPF soot loading, emissions faults and rising sump oil levels from aborted regenerations on short-journey 1.5 Skyactiv-D diesels
  • !Inner-shoulder tyre wear, sidewall bulges and windscreen chips or condensation obstructing the forward Smart City Brake Support camera
3
Known Issues
0
Serious
1
Moderate
2
Minor

All Known Issues

AC Condenser Corrosion

ModerateCooling System

The AC condenser is very prone to stone chip damage and corrosion, leading to a loss of refrigerant.

Est. Repair Cost: £250–£500
Warning Signs:

AC stops blowing cold air

What to Inspect:
  • Check for oily residue or dark patches on the condenser behind the front grille
Verified by IsItAGoodCar Research Team

Safety Sensor Misting

MinorElectrics & Electronics

The camera/sensor unit behind the rearview mirror can mist up in cold or damp weather, disabling safety systems.

Est. Repair Cost: £0
Warning Signs:

"Smart City Brake Support Disabled" message, Auto-wipers stop working

What to Inspect:
  • Usually clears once the cabin warms up; check for signs of excessive moisture in the cabin
Verified by IsItAGoodCar Research Team

Seat Bolster Collapse

MinorInterior & Trim

The foam in the outer seat bolsters can break down or sag prematurely, even on low-mileage cars.

Est. Repair Cost: £150–£300
Warning Signs:

Creased leather/fabric, Lack of support from the seat side

What to Inspect:
  • Visually inspect and feel the driver's seat outer bolsters
Verified by IsItAGoodCar Research Team

Buying Tips for 2015 Mazda CX-3 (DK)

  • Confirm the air conditioning blows ice-cold; the exposed condenser behind the lower grille readily suffers stone punctures and corrosion
  • Cycle both power-folding door mirrors several times and watch the stationary 7-inch MZD-Connect touchscreen for phantom ghost touches
  • Check the dipstick on any 1.5 Skyactiv-D; walk away if diluted oil sits near the X mark or if usage has been mostly urban trips
2016–2017
Check a 2015 Mazda CX-3 (DK) by Registration