2020 Audi A6 used buying checklist

Test for the problems owners report most

The most reported problems of this model year, with what to look for on the test drive.

• Electrical system19 owner complaints

  Test every screen, camera, power window, lock and the key fob. With the engine running, make sure no warning lights stay on.

• Driver assistance and stability6 owner complaints

  Try the driver-assistance features on the road and watch for false alerts or sudden braking.

• Body and structure3 owner complaints

  Look underneath for rust, especially on the frame and brake lines, and check that door and panel gaps are even.

• Steering2 owner complaints

  Turn the wheel from lock to lock while parked and on the road: it should be smooth, with no clunks, stiffness or warning lights.

Make sure these recalls were done

Recall repairs are free at any dealer of the brand. Ask the seller for proof, or have a dealer check the VIN.

• Back over preventionRecall number 25V900000, Dec 19, 2025
• Service brakes, hydraulicRecall number 23V601000, Aug 25, 2023
• Electrical systemRecall number 22V861000, Nov 21, 2022
• Electrical systemRecall number 22V155000, Mar 14, 2022
• TiresRecall number 22V034000, Jan 26, 2022
• SuspensionRecall number 21V295000, Apr 26, 2021
• Air bagsRecall number 21V159000, Mar 10, 2021
• Air bagsRecall number 20V274000, May 13, 2020
• Electrical systemRecall number 20V153000, Mar 19, 2020

Repairs the maker may still cover

Warranty extensions can cover a known problem beyond the normal warranty. Check whether this car is still within the time or mileage limit.

• Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction...May 16, 2024

Service bulletins worth asking about

Repair instructions the maker sent to dealers for known problems. Ask whether any of these repairs were done.

• This bulletin proides service information when there is a prompt to take over the steering wheel (hands...Oct 20, 2026
• This bulletin provides information when the starter battery is discharged or malfunctioning.Oct 20, 2026
• This bulletin provides information when there is an Audi pressense warning, warning jolt, and/or brake...Oct 16, 2026
• This bulletin provides information when therea re functional issues with the connectivity box (low).Oct 16, 2026
• This bulletin provides information to aid in diagnosing the vehicle locking system.Oct 15, 2026
• This bulletin provides infomraiton when the exterior lights have moisture accumulation.Oct 5, 2026

Before you pay

• Decode the VIN and make sure it matches the title, the registration and the car itself.
• Get a vehicle history report to check for accidents, salvage or flood titles and odometer problems.
• Ask for service records, especially oil changes and any transmission fluid service.
• Start the car from cold, and drive it at city and highway speeds for at least 20 minutes.
• Have an independent mechanic inspect the car before you sign anything.