Should I buy a 2018–2021 Kia Sportage 1.6 Diesel Automatic?

Explore common problems, estimated repair costs and practical checks for the 2018–2021 Kia Sportage 1.6 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

1High Likelihood

DPF loading and failed regenerations

DPF or engine warning light, cooling fan running after a trip, poor pull above town speeds, or limp mode after repeated short journeys.

How to check

Warm it fully, then drive at steady A-road or motorway speed for 10-15 minutes and watch for warning lights or a sudden lack of response.

Estimated Repair Cost

£1,200

2Low Likelihood

NOx sensor and AdBlue/SCR faults

Engine or emissions warning light, AdBlue-related message, repeated fault returns after clearing, or poor regeneration behaviour.

How to check

Read the exact fault codes first.

Estimated Repair Cost

£700

3Moderate Likelihood

Water ingress from sunroof drains or A/C drain blockage

Musty smell, damp carpet, persistent window misting, wet front footwell, or moisture in the boot or headlining after rain.

How to check

Run the air conditioning, then park up and use the heater and demist while paying attention to smells and cabin moisture.

Estimated Repair Cost

£400

MOT Failure Rate

0%10%20%30%0–20,000 miles: 10.1% (602 failed / 5,952 tests)20,000–40,000 miles: 12.8% (3,277 failed / 25,635 tests)40,000–60,000 miles: 15.0% (2,990 failed / 19,982 tests)60,000–80,000 miles: 16.4% (1,387 failed / 8,481 tests)80,000–100,000 miles: 16.1% (417 failed / 2,594 tests)100,000–120,000 miles: 19.5% (158 failed / 809 tests)120,000–140,000 miles: 18.4% (41 failed / 223 tests)140,000–160,000 miles: 20.3% (13 failed / 64 tests)160,000–180,000 miles: 28.6% (4 failed / 14 tests)180,000–200,000 miles: 20.0% (1 failed / 5 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2018–2021 Kia Sportage 1.6 Diesel Automatic

Kia Sportage buying questions

Is a 2018–2021 Kia Sportage worth buying?

It can be, but only if the individual car backs it up. For the 2018–2021 Kia Sportage 1.6 Diesel Automatic, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the Kia Sportage (2018–2021)?

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 Kia Sportage?

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