The Mazda CX-5 is a mid-size SUV that has earned a reputation as one of the most reliable cars in its class — consistently outperforming rivals in owner satisfaction surveys. The MK1 (2012–2017) and MK2 (2017–present) are both common on UK roads. It competes with the Ford Kuga, Hyundai Tucson and Nissan Qashqai but offers superior build quality and driving dynamics at a comparable price. A benchmark used SUV buy.
Quick Facts — Mazda CX-5
Common Engines
2.0 Skyactiv-G, 2.5 Skyactiv-G, 2.0 Skyactiv-G MHEV, 2.2 Skyactiv-D, 2.5 Skyactiv-G Turbo
6 Most Common Mazda CX-5 Problems
These are the faults most frequently seen on the Mazda CX-5 by UK garages — ranked by how commonly they occur and what they cost to fix.
The diesel CX-5 develops DPF blockages when used on short urban journeys — a common pattern for a family SUV. The Skyactiv-D is an excellent motorway engine but poorly suited to city use.
💷 Typical repair cost: £100–£1,200
The 2.5 Skyactiv-G direct injection petrol engine can develop carbon deposits on intake valves on higher mileage examples. Symptoms include rough idle and misfires at cold start.
💷 Typical repair cost: £200–£600
High-mileage diesel CX-5s develop EGR carbon fouling causing rough running and EML illumination.
💷 Typical repair cost: £150–£500
A knock from the front suspension on MK1 CX-5s is commonly reported — usually worn front lower arm bushes or ball joints.
💷 Typical repair cost: £100–£350
Air conditioning refrigerant loss over time is normal — CX-5s over 4 years old may need re-gassing.
💷 Typical repair cost: £50–£120
Very high mileage Skyactiv-D CX-5s can develop minor injector seal weeps — usually found during routine servicing.
💷 Typical repair cost: £100–£400
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Mazda CX-5 — MOT Tips
DPF warning is an automatic MOT fail on diesel models. Check for EML — carbon buildup on the 2.5 petrol can cause misfires that fail on emissions. Inspect front lower arm bushes on MK1 examples — worn bushes are MOT advisories. Air con is not MOT-relevant but affects heater demist effectiveness.
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-5 Tyres
Most Mazda CX-5 models run 225/65 R17 or 225/55 R19 or 255/45 R19 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-5 is one of the best used mid-size SUVs available. Reliability is genuinely class-leading. The 2.0 Skyactiv-G petrol manual is the most dependable combination. Avoid the diesel for city use. The MK2 represents a refinement over the already-strong MK1 and is the more desirable used buy.
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