Should I buy a 2015–2018 Ford S-MAX 2.0 Diesel Automatic?

Explore common problems, estimated repair costs and practical checks for the 2015–2018 Ford S-MAX 2.0 Diesel 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

Automatic gearbox judder and shift faults

Jerky pull-away, delayed engagement, thumps on shifts, or a transmission warning on the dash.

How to check

Pull away gently several times from a stop, then creep in slow traffic and repeat once the car is warm.

Estimated Repair Cost

£3,000

2High Likelihood

EGR valve and cooler soot blockage

Sluggish acceleration, uneven running, extra smoke, warning light or repeated fault returns after short-trip use.

How to check

Accelerate gently and then more firmly from low revs once the engine is warm.

Estimated Repair Cost

£450

3High Likelihood

Battery drain and body-control electrical sleep issues

Low-battery messages, stop-start unavailable, slow cranking, or the car going flat after a few days parked.

How to check

Start the car from cold, use normal electrical items during the drive, then switch off and restart after a short pause.

Estimated Repair Cost

£500

MOT Failure Rate

0%10%20%30%0–20,000 miles: 9.2% (557 failed / 6,031 tests)20,000–40,000 miles: 13.5% (4,561 failed / 33,833 tests)40,000–60,000 miles: 16.0% (5,984 failed / 37,472 tests)60,000–80,000 miles: 18.3% (4,927 failed / 26,915 tests)80,000–100,000 miles: 21.1% (3,011 failed / 14,300 tests)100,000–120,000 miles: 22.3% (1,319 failed / 5,908 tests)120,000–140,000 miles: 23.4% (548 failed / 2,339 tests)140,000–160,000 miles: 22.5% (203 failed / 904 tests)160,000–180,000 miles: 23.6% (106 failed / 449 tests)180,000–200,000 miles: 24.6% (46 failed / 187 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2015–2018 Ford S-MAX 2.0 Diesel Automatic

Ford S-MAX buying questions

Is a 2015–2018 Ford S-MAX worth buying?

It can be, but only if the individual car backs it up. For the 2015–2018 Ford S-MAX 2.0 Diesel Automatic, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the Ford S-MAX (2015–2018)?

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 Ford S-MAX?

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