This page covers 3 recalls, 20 owner complaints, NHTSA crash-test ratings and EPA fuel economy for the 2014 Audi S6.
20 mpg combined
11.8 L/100km
Midsize Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
5/5 Overall
NHTSA 5-Star Safety Rating
Engine complaints dominate the 2014 Audi S6 owner reports, with turbocharger failure being the most frequently described issue. Owners report turbos failing with little or no warning, sometimes early in ownership, and replacement estimates run into the thousands of dollars. Camshaft-related failures also come up repeatedly, specifically camshaft actuators, positioners, and sensors failing prematurely, with at least one owner reporting the same components failing twice within roughly 30,000 miles. Excessive oil consumption is a related thread, with owners noticing oil levels dropping to minimum between service intervals. A smaller cluster of complaints touches on suspension, where owners with air suspension describe the system taking longer than normal to raise and making unusual noises during operation. Motor and transmission mount wear rounds out the complaint picture, with a couple of owners reporting premature failure of those components.
20
Total Complaints
2
With Injuries
By System
The 2014 Audi S6 has 3 recalls, the most serious being a fuel line that can leak near potential ignition sources and a turbocharger that can stall the engine without warning, both raising the risk of a crash or fire.
The fuel line issue stems from a fitting that may not seal properly, allowing raw fuel to escape near hot engine components. On the turbocharger side, a blocked oil supply strainer starves the bearings of lubrication, which can cause the turbine shaft to break or the spinning wheel to contact its housing, cutting engine power while driving. The third recall involves the front passenger seat sensor mat, which can wear or crack over time and cause the occupant detection system to misread the seat, potentially preventing the passenger airbag from deploying correctly in a crash.
At a glance
What can fail
The turbocharger oil supply strainer can become blocked, reducing lubrication to the bearings and causing wear.
What the fix does
Dealers will replace the oil strainer and perform an oil change at no charge.
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Driver Assistance
Ratings from NHTSA's New Car Assessment Program (NCAP).
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The body-sensing mat in the front passenger seat may wear or stress over time, causing the passenger detection system to stop working properly.
What the fix does
Dealers will install a passenger detection system repair kit at no cost to restore proper function.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A fuel line may leak fuel due to manufacturing tolerance issues in the 4.0L engine.
What the fix does
Dealers will replace the fuel line at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
