2012 Audi A6 Problems: 4 Known Issues
2012 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated October 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2012 Audi A6 has 4 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. Across all issues with published estimates, repair costs range from $100 to $2,500. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls16 recalls
AIR BAGS
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi RS6 Avant, RS7, 2020-2021 A6 Allroad, S6 Sedan, S7, 2019-2021 A6 Sedan, and A7 vehicles. The score line on the passenger air bag may not have been manufactured correctly.
ELECTRICAL SYSTEM:STARTER ASSEMBLY
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2019-2020 Audi A6 vehicles equipped with mild-hybrid technology and 2.0TFSI engines. Moisture may enter the starter generator and cause an electrical short circuit.
ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 RS6 Avant and RS7, 2020-2022 A6 Allroad, S6 Sedan, and S7, and 2019-2022 A6 Sedan and A7 vehicles. The fuel level sender may stick, causing an inaccurate fuel level reading to be displayed on the instrument cluster.
ELECTRICAL SYSTEM
Volkswagen Group of America, Inc. (Audi) is recalling certain 2020-2022 Audi S7, S6 Sedan, A6 Allroad, 2021-2022 RS7, RS6 Avant, 2019-2022 A7, and A6 Sedan vehicles. Liquid spilled in the rear seat may penetrate and cause the gateway control module to shut down.
SERVICE BRAKES, HYDRAULIC:FLUID
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi S7, S6 Sedan, RS7, RS6 Avant, A6 Allroad, 2019-2021 A7, and A6 Sedan vehicles. An incorrectly labeled brake fluid cap may have been installed, which can result in the use of the wrong type of brake fluid.
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Frequently Asked Questions
What are the most common Audi A6 problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2012 Audi A6 has 4 documented issues. The most frequently reported are: 2012-2015 A6 ABS/ESP Warning With Engine Will Not Switch Off, Water Pump and Thermostat Failure (Overheating), Electrical Issues (Window Regulators, Door Locks, MMI). None are rated critical, but regular maintenance is recommended.
Is the Audi A6 reliable?
The 2012 Audi A6 has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Audi A6 problems?
Repair costs for known Audi A6 issues range from $0 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2012-2015 Audi A6 2012-2015 A6 ABS/ESP Warning With Engine Will Not Switch Off?
Audi TSB 2037761/1 covers a specific situation in which a 2012-2015 A6 shows ABS/ESP warnings and the engine does not switch off with a normal press of START ENGINE STOP. The ignition system uses the ABS control unit's vehicle-speed signal to determine whether the car is stationa… Severity: medium.
What is the 2005-2023 Audi A6 Water Pump and Thermostat Failure (Overheating)?
Water pump failures are common across all A6 generations due to plastic impeller degradation and seal leaks. Audi uses plastic impellers that crack or disintegrate over time (typically 80,000-120,000 miles), causing coolant leaks and overheating. The water pump is often driven by… Repairs typically run $800-$1,500. Severity: medium.
What is the 2005-2023 Audi A6 Electrical Issues (Window Regulators, Door Locks, MMI)?
The Audi A6 is prone to various electrical gremlins across all generations, including window regulator failures, door lock actuator failures, MMI/infotainment glitches, and battery drain issues. Window regulators fail due to weak plastic clips in the mechanism, causing windows to… Repairs typically run $100-$2,500. Severity: low.
What is the 2012-2014 Audi A6 Crankcase Pressure-Regulating Valve Service Action 17F9 (2.0T)?
Audi emissions service action 17F9 covers certain 2011-2014 vehicles equipped with the 2.0L TFSI engine, including affected A6 vehicles in the 2012-2014 model-year range. The pressure-regulating valve diaphragm may be damaged and the vehicle may fail an emissions inspection. Elig… Repairs typically run $0-$0. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.