Should I buy a 2017 Audi A4 1.4 Petrol Automatic B9?

Explore common problems, estimated repair costs and practical checks for the 2017 Audi A4 1.4 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

Coolant pump / thermostat housing leaks

Low coolant warning, sweet smell, pink crusty residue, or the level dropping between services.

How to check

Warm the car fully, then leave it idling for a few minutes and park it after the drive.

Estimated Repair Cost

£1,100

2Moderate Likelihood

Sunroof drain blockage and cabin water ingress

Wet footwells, damp headlining, condensation, musty smell, or odd electrical behaviour after heavy rain.

How to check

Open the doors after the drive and spend a moment inside with the mats lifted at the edges.

Estimated Repair Cost

£400

3High Likelihood

Engine mount hydraulic leaks and vibration

Extra vibration at idle, a thump when selecting drive, or a rougher feel than expected for a refined petrol A4.

How to check

Let the engine idle fully warm, then move between park, reverse and drive while holding the brake.

Estimated Repair Cost

£900

MOT Failure Rate

0%10%20%30%0–20,000 miles: 6.1% (145 failed / 2,387 tests)20,000–40,000 miles: 10.6% (1,349 failed / 12,698 tests)40,000–60,000 miles: 14.1% (1,633 failed / 11,591 tests)60,000–80,000 miles: 17.0% (1,094 failed / 6,447 tests)80,000–100,000 miles: 18.6% (446 failed / 2,397 tests)100,000–120,000 miles: 18.9% (132 failed / 700 tests)120,000–140,000 miles: 18.9% (39 failed / 206 tests)140,000–160,000 miles: 18.5% (12 failed / 65 tests)160,000–180,000 miles: 20.8% (5 failed / 24 tests)180,000–200,000 miles: 20.0% (2 failed / 10 tests)020k40k60k80k100k120k140k160k180k200kMilesFailure rate
2017 Audi A4 1.4 Petrol Automatic B9

Audi A4 buying questions

Is a 2017 Audi A4 worth buying?

It can be, but only if the individual car backs it up. For the 2017 Audi A4 1.4 Petrol Automatic B9, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.

What common problems affect the Audi A4 (2017)?

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 A4?

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