Should I buy a 2017–2019 Audi A5 2.0 Petrol Automatic B9?

Explore common problems, estimated repair costs and practical checks for the 2017–2019 Audi A5 2.0 Petrol Automatic B9. 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

Electric auxiliary coolant pump overheating / fire risk

Coolant warning light, burning smell, fan running oddly after shutdown, coolant leak traces, or overheating messages. Some cars show no warning before failure.

How to check

After the drive, switch off and wait nearby for a couple of minutes.

Estimated Repair Cost

£450

2Moderate Likelihood

Automatic gearbox hesitation, shudder or mechatronic faults

Jerky take-off, delayed engagement selecting drive or reverse, shudder in traffic, warning lights, or harsh shifts once warm.

How to check

Pull away gently from a stop, creep forward in slow traffic, then select reverse once fully stopped.

Estimated Repair Cost

£2,500

3Moderate Likelihood

Ignition coil and spark plug misfires

Engine judder under acceleration, rough idle, EPC or engine light, reduced power, or misfire only when hot or under boost.

How to check

Accelerate firmly once the engine is warm, especially from low revs in a higher gear.

Estimated Repair Cost

£350

MOT Failure Rate

0%5%10%15%20%0–20,000 miles: 7.0% (758 failed / 10,815 tests)20,000–40,000 miles: 10.7% (3,609 failed / 33,622 tests)40,000–60,000 miles: 13.7% (3,112 failed / 22,698 tests)60,000–80,000 miles: 16.1% (1,462 failed / 9,098 tests)80,000–100,000 miles: 17.8% (480 failed / 2,702 tests)100,000–120,000 miles: 19.3% (143 failed / 741 tests)120,000–140,000 miles: 18.0% (35 failed / 194 tests)140,000–160,000 miles: 17.1% (12 failed / 70 tests)160,000–180,000 miles: 16.7% (2 failed / 12 tests)180,000–200,000 miles: 0.0% (0 failed / 6 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2017–2019 Audi A5 2.0 Petrol Automatic B9

Audi A5 buying questions

Is a 2017–2019 Audi A5 worth buying?

It can be, but only if the individual car backs it up. For the 2017–2019 Audi A5 2.0 Petrol Automatic B9, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the Audi A5 (2017–2019)?

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 an Audi A5?

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