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What 40 owners told NHTSA about the 2014 Audi A6

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (40)Crash / fire / injury (1)Fuel system (8)Steering (8)Airbags (7)Brakes (4)Engine (4)Body & structure (2)Electrical system (2)Backup camera & sensors (1)Engine & cooling (1)Equipment (1)

4 of 40 complaints match · Engine · clear filters

Mar 4, 2025Transmission & drivetrainEngineFuel system

I purchased a 2014 Audi A6 2.0T Quattro premium plus on November 15, 2024 with 99,141 miles. I got the 14 day dealership extended warranty, which covered powertrain systems. After 3 days of driving exactly 103 miles the oil light came on my dashboard telling me that the oil was low. I immediately brought it back to the dealership and their mechanic look at it, he said there was nothing wrong and changed the oil so it should be good now. I drove it another 3 days 136 miles this time, and the oil light came on once again. Brought it back a 2nd time to the dealership’s mechanic. After about a week, we heard back and they told us he still couldn’t find anything wrong, but agreed that for some reason, the engine is consuming oil more than it should be. At this point we go to an actual Audi dealership where they tell us that the pistons and turbo were the problem so they would have to rip apart the engine and seal everything back up. At the time we purchased the vehicle on top of the 14 day dealership warranty we also purchased an extended warranty by a company called integrity warranty LLC. Our warranty company decided that they were not going to cover the cost of the parts and labor in order to fix my Audi, because they said it was a pre-existing issue prior to us purchasing the vehicle which we had not heard of before, or even seen on the Carfax report. On February 25 I was driving at night 25 mph and I came to a red light stopped my car and began smelling a very strange smell. Saw a lot of smoke coming from the exhaust in the back, the dashboard lights began flickering, the steering wheel start to shake, and then the car just shut down. Now I am without a vehicle, the dealership will not help us, the warranty company will not help us, and I now have to purchase a new car while still making payments on the Audi that doesn’t work.

NHTSA ODI 11646146

May 26, 2023Engine

My car was manufactured with defective pistons. The pistons are resulting in reduced oil pressure in my engine, which can result in a sudden loss of power. I had my engine inspected, and the attached photographs depict that the original pistons that shipped with my car caused scoring to the cylinder walls which is causing metal pieces to collect in my engine. In addition, Volkswagen Group of America, Inc. acknowledged that the pistons need to be repaired in my car, and quoted the repair using an updated design, so they are aware of the issue and have knowledge of it. While the defect existed during the warranty period, VWGoA refuses to repair or replace my defective engine under warranty.

NHTSA ODI 11524088

Sep 26, 2018Engine

TL* THE CONTACT OWNS A 2014 AUDI A6. THE CONTACT STATED THAT THE COOLANT PUMP WAS LEAKING. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V229000 (ENGINE). THE DEALER (AUDI ARLINGTON, 3200 COLUMBIA PIKE, ARLINGTON, VA 22204, (703) 739-7460) WAS CONTACTED. A LOANER VEHICLE OPTION WAS NOT PROVIDED. THE MANUFACTURER WAS CONTACTED AND WAS UNABLE TO PROVIDE A REASONABLE TIME FRAME TO SUPPLY THE PART. THE APPROXIMATE FAILURE MILEAGE WAS 20,000. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA ODI 11131739

Aug 17, 2018Engine

TL* THE CONTACT OWNS A 2014 AUDI. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V229000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE DEALER (AUDI ROCHESTER, 3955 W HENRIETTA RD, ROCHESTER, NY 14623, 585-334-1600) WAS CONTACTED AND CONFIRMED THAT PARTS WERE NOT AVAILABLE FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT CONTACTED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA ODI 11120637

Working with the data? Download all 40 complaints as CSV · fetched from NHTSA July 14, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2014 Audi A6 verdict →