2015 Audi S6 problems, complaints & recalls
Most-reported problem areas: Engine (2) · Suspension (1) · Fuel/Propulsion System (1)
Safety recalls (2)
Engine And Engine Cooling:engine:gasoline:turbo/Supercharger 2022-03-23 · campaign 22V178000 · 26,093 vehicles
Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2013-2017 A8, S6 Sedan, S7, S8, and 2014-2017 RS7 vehicles. The turbocharger oil supply strainer can become blocked, causing wear to the bearings due to lack of lubrication.
Risk: Worn bearings can cause the turbine wheel to contact the turbocharger housing or cause the shaft to break, causing an engine stall and increasing the risk of a crash.
Fix: Dealers will replace the oil strainer and perform an oil change, free of charge. Owner notification letters were mailed August 4, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 21H7.
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.
Service bulletins (715)
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 715 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-07-23 · Suspension“steering module went out for no apparent reason. i was able to find a used one and have it repaired for just under $1000. i had git two quotes for to auto shops that specialize in audi repairs and they were both over $5300 to repair this steering module. this is unacceptable. …”
2021-09-01 · Engine“turbos blew causing the vehicle to lose power while trying to merge in traffic. …”
2021-06-11 · Fuel/Propulsion System · 💥 crash“multiple turbo failures. engine shook violently then suddenly stopped in the middle of the road. this same issue happened 3 times affecting both turbos. it may be due to faulty oil filter/strainer. from online research (link below) this is a common problem for c7 audi s6. https://www.audizine.com/forum/showthread.php/851578-2016-s6-4-0t-turbo-fail…”
2021-04-06 · Unknown Or Other · 47,000 mi“i was driving down the highway and my sunroof exploded. there was a loud bang and i saw and felt air and debris come in through my sunroof visor vents. when i pulled over and got out of the car i saw my sunroof has exploded. i say explode because it is clearly visible that the sunroof is broken from the inside out. there were no trucks around to ki…”
2021-03-23 · Engine · 69,500 mi“driving on the new jersey turnpike and both turbochargers failed. car lost power and i had to steer to side of the highway without power steering and brakes from far left lane. audi service says bearings starved of oil and seized. they said this is a common problem with the 4.0 twin turbo audi engines and that the oil feed line gets blocked and s…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.