Quick Facts — Mazda CX-5

Est. On UK Roads
130,000+
Years Made
2012–present
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.

1
DPF Blockage (2.2 Skyactiv-D)
High Priority
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
2
Carbon Buildup — Intake Valves (Skyactiv-G 2.5)
Watch
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
3
EGR Valve Failure (Skyactiv-D)
Watch
High-mileage diesel CX-5s develop EGR carbon fouling causing rough running and EML illumination.
💷 Typical repair cost: £150–£500
4
Front Suspension Knock (MK1)
Watch
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
5
Air Con Recharge
Low Priority
Air conditioning refrigerant loss over time is normal — CX-5s over 4 years old may need re-gassing.
💷 Typical repair cost: £50–£120
6
Fuel Injector Seals (Skyactiv-D High Mileage)
Low Priority
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 Find Your Problem Now → 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.

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Frequently Asked Questions

What is the most common problem with the Mazda CX-5?

The most frequently reported issue on the Mazda CX-5 is DPF Blockage (2.2 Skyactiv-D). 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.

How many Mazda CX-5s are on UK roads?

There are an estimated 130,000+ Mazda CX-5s currently on UK roads.

What tyres does the Mazda CX-5 use?

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.

Will a warning light fail my Mazda CX-5's MOT?

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.

Similar Issues on Other Models

Nissan X-Trail — shares the same DPF blockage problem Land Rover Freelander 2 — shares the same DPF blockage problem

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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Other Mazda Models

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