Should I buy a 2018 Mazda 6 2.0 Petrol Automatic?

Explore common problems, estimated repair costs and practical checks for the 2018 Mazda 6 2.0 Petrol Automatic. Use this guide to help assess a used car, then unlock a personalised report for the exact vehicle you're considering.

Common problems

1Moderate Likelihood

Rear brake calipers sticking or seizing

Hot smell from one rear corner, a wheel that gets much hotter than the others, or a slight dragging feel after normal driving.

How to check

Drive for 10 to 15 minutes with normal braking, then stop and walk around the car.

Estimated Repair Cost

£450

2High Likelihood

Infotainment ghost touch or rebooting screen

The screen jumps through menus on its own, reboots, freezes, or behaves unpredictably even when nobody is touching it.

How to check

Use the media and navigation system for several minutes while stationary and again during a short drive.

Estimated Repair Cost

£650

3High Likelihood

Battery-management and stop-start warning faults

Stop-start stops working, battery-management warnings appear, or the car throws electrical messages despite otherwise driving normally.

How to check

Start the car from cold, drive until warm, then stop in traffic with lights and ventilation running normally.

Estimated Repair Cost

£350

MOT Failure Rate

0%10%20%30%40%0–20,000 miles: 6.2% (95 failed / 1,543 tests)20,000–40,000 miles: 10.6% (388 failed / 3,666 tests)40,000–60,000 miles: 14.0% (343 failed / 2,444 tests)60,000–80,000 miles: 14.3% (137 failed / 961 tests)80,000–100,000 miles: 16.3% (54 failed / 332 tests)100,000–120,000 miles: 19.5% (22 failed / 113 tests)120,000–140,000 miles: 16.3% (7 failed / 43 tests)140,000–160,000 miles: 15.8% (3 failed / 19 tests)160,000–180,000 miles: 10.0% (1 failed / 10 tests)180,000–200,000 miles: 33.3% (1 failed / 3 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2018 Mazda 6 2.0 Petrol Automatic

Mazda 6 buying questions

Is a 2018 Mazda 6 worth buying?

It can be, but only if the individual car backs it up. For the 2018 Mazda 6 2.0 Petrol Automatic, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the Mazda 6 (2018)?

The problem cards above list the model-level checks for this guide. Read them as priorities for inspection and paperwork review, not proof that every example will have those faults.

What should I check before buying a Mazda 6?

Look for evidence, not just assurances: MOT advisories, service history, repair invoices, warning lights, fluid leaks, tyre and brake condition, and how the car behaves on a proper test drive. And of course, look at your personalised Should I Buy This Car? report, outlining a full list of common issues in detail, a personalised road test, a plain-English explanation and a MotorIQ score.

A model guide is useful. A report on its registration is better.

The guide above gives you the model-level pattern. A personalised MotorIQ report checks the registration-specific record and turns it into an ownership view before you commit.

Or enter the vehicle manually