Explore common problems, estimated repair costs and practical checks for the 2015–2024 Audi A4 Avant B9. Use this guide to help assess a used car, then unlock a personalised report for the exact vehicle you're considering.
Low coolant warning, pink crusty residue around the front of the engine, sweet smell, or temperature rising in slow traffic.
Warm the car fully, let it idle after the drive, then sit in traffic or stationary for a few minutes with the air conditioning on.
£950
Uneven idle, flashing engine light, hesitation under acceleration, or a bouncy cold start.
Start the engine from cold if possible, then accelerate firmly through the mid-range once fully moving.
£350
Wet carpet, damp boot lining, musty smell, misted windows, or water appearing after heavy rain.
After the drive, open the doors and boot, lift the floor mats by hand, and smell the cabin air.
£600
It can be, but only if the individual car backs it up. For the 2015–2024 Audi A4 Avant B9, treat model-level patterns as viewing priorities and let condition, history and inspection evidence decide.
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.
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.
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