2015 Audi A6 problems, complaints & recalls
Most-reported problem areas: Engine (4) · Air Bags (3) · Steering (2)
🧭 Reliability snapshot
Compared against other Audi A6 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (4)
Electrical System:wiring 2018-12-05 · campaign 18V862000 · 845 vehicles
Defect: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2015-2016 Audi A6 Sedans and 2015 Audi A7 vehicles. The auxiliary heater electrical connector on these vehicles may have been incorrectly inserted into the auxiliary heater, possibly resulting in increased electrical resistance.
Risk: The extra resistance can cause the connector to overheat, increasing the risk of a fire.
Fix: Volkswagen will notify owners, and dealers will inspect the auxiliary heater connector, replacing the auxiliary heater and connector, as necessary, free of charge. The recall began March 15, 2019. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 82C1.
Air Bags:sensor:occupant Classification 2018-06-04 · campaign 18V370000 · 139,249 vehicles
Defect: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S6 and S7, 2012-2018 A7 and A6 Sedan, and 2014-2018 RS7 vehicles equipped with basic seats (with or without heating). Stress or wear of the body-sensing mat within the front passenger seat may cause the Passenger Occupant Detection System (PODS) control module to malfunction.
Risk: If the PODS module malfunctions, the front passenger air bag may not deploy properly in the event of a crash, increasing the risk of injury.
Fix: Volkswagen will notify owners, and dealers will install a PODS system repair kit, free of charge. The recall began November 29, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 74D5.
Engine And Engine Cooling:cooling System 2018-04-11 · campaign 18V229000 · 342,867 vehicles
Defect: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2017 Audi A5 Cabriolet, A5 Sedan and Audi Q5 vehicles, 2012-2015 Audi A6 vehicles and 2013-2016 Audi A4 Sedan and A4 allroad vehicles. These vehicles, equipped with 2.0l Turbo FSI engines, have an electric coolant pump that can either become blocked with debris from the cooling system causing it to overheat or can short-circuit from moisture within the pump.
Risk: A blocked pump or a short-circuited pump can increase the risk of a fire.
Fix: Audi will notify owners, and dealers will replace the pumps, free of charge. The recall began September 14, 2018. Owners may contact Audi customer service at 1-800-253-2834. Audi's number's for this recall is 19N3/19N4. Note: This recall is in additional to the coolant pump software update applied as a remedy under recall 17V002.
Engine And Engine Cooling:cooling System 2017-01-03 · campaign 17V002000 · 342,867 vehicles
Defect: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2017 Audi A5, A5 Cabriolet and Q5 vehicles, 2013-2016 Audi Allroad and Audi A4 vehicles and 2012-2015 Audi A6 vehicles. These vehicles, equipped with 2.0l Turbo FSI engines, have an electric coolant pump that can be blocked with debris from the cooling system, resulting in the pump overheating.
Risk: If the coolant pump overheats, it can increase the risk of a fire.
Fix: Audi will notify owners, and dealers will update the software so that the power supply to the coolant pump is deactivated if the pump becomes blocked with debris, free of charge. The recall is expected to begin February 20, 2017. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 19M1.
Service bulletins (1,115)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-25 · TSB_2083409_1 · Service Bulletin/Repair Instructions
this bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded.
Unknown Or Other 2026-09-25 · TSB_2052680_2 · Service Bulletin/Repair Instructions
this bulletin provides information for reporting safety related information to the manufacturer.
Steering 2026-09-22 · TSB_2074846_5 · Service Bulletin/Repair Instructions
this bulletin provides information about vibrations and rotational steering vibrations.
Visibility/Wiper 2026-09-22 · TSB_2020552_15 · Service Bulletin/Repair Instructions
this bulletin provides service information regarding exterior glass cleaning.
Unknown Or Other 2026-09-15 · TSB_2030471_9 · Service Bulletin/Repair Instructions
this bulletin provides information when the license plate mounting bracket threded inserts are stripped.
Structure:body 2026-09-08 · TSB_2068999_5 · Service Bulletin/Repair Instructions
this tsb describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
Showing the 6 most recent of 1,115 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-07-24 · Air Bags · 129,000 mi · 💥 crash“the contact's sister owns a 2015 audi a6. the contact stated that while his sister was driving 35 mph, the vehicle crashed into the rear of a toyota 4runner. the driver sustained injuries to the chest and neck and had back pain. medical attention was not provided. the front bumper and frame, and hood were damaged. the air bags failed to deploy. the…”
2026-01-17 · Wheels“i am writing to report a serious and life-threatening safety incident involving my audi vehicle following recent service performed by an authorized audi dealer. vehicle information: model: audi (2015) vin: [xxx] servicing dealer: audi lafayette in date of service: 2026-01-14 a few days after the service appointment, my wife was driving the v…”
2024-10-16 · Engine And Engine Cooling · 79,000 mi“the contact owns a 2015 audi a6. the contact stated that while driving on neighborhood roads at approximately 25 mph, the coolant warning light was illuminated. the contact proceeded to park on the side of the road and walk to her residence to pick up coolant to refill the coolant tank. the vehicle was then taken to the independent mechanic where i…”
2023-12-31 · Fuel/Propulsion System“p2067 engine check code which shows faulty fuel sensor. audi has recalled other year audi a6 sedan vehicles with the same issue and this seems to be a safety issue as it can show incorrect fuel gauge and in the event of car out of fuel, engine can stall and can cause accident. …”
2023-11-17 · Engine“coolant sprayed on engine components due to leaking coolant /water pump. coolant level is falling below minimum level - problem confirmed by the dealer 1. water pump 2. coolant sprayed onto engine components - potential fire hazard 3. confirmed by dealer 4. unknown 5, umknown…”
2023-01-06 · Engine And Engine Cooling · 78,000 mi“the contact owns a 2015 audi a6. the contact stated that while the vehicle was parked, there was antifreeze leaking underneath the vehicle. the contact stated that the leak was a recurring failure. the contact stated that after starting the vehicle, the "turn off engine, check coolant level" message was displayed. the vehicle was taken to a local d…”
2022-08-02 · Engine“the defect of water pump used by this model causes coolant leakage and a serious overheating problem that triggers the temperature warning light. it is a safety risk without repairing this.…”
2022-03-03 · Engine And Engine Cooling:engine:crank/Camshaft Position Sensor · 85,000 mi“the contact owns a 2015 audi a6. the contact stated while driving 65 mph, the oil warning light illuminated. the contact veered to the side of the road and called for roadside assistance. the vehicle was towed to a local dealer to be diagnosed. the contact was informed that the oil level was extremely low due to an oil leak. the contact was informe…”
2022-01-11 · Electrical System“the car will randomly die without notice and then will not start. there's an ec fault but no other identifiers and the car won't start for quite some time. after sitting for a couple hours or more it will finally start. it happens at a minimum of 1-2 times per month.…”
2020-12-20 · Service Brakes · 10 mi“the brakes are grabby and with a gentle depression of the brake pedal the car comes to a sudden jerky stop. usually happens from slowing down from 10mph to 0mph the transmission jerks hard when speed drops from 15mph the engine erroneously shows check engine light during normal driving. cylinders show oil leakage repeatedly. this has become a rep…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.