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What 5 owners told NHTSA about the 2017 Audi S6
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.
1 of 5 complaints match · Fuel system · clear filters
Apr 23, 2021EngineFuel system
TURBO POWER FEELS TO HAVE GRADUALLY DECLINED UPON APPROACHING 50K MILES. IT IS CAUSED BY CLOGGED TURBO OIL SCREENS. $3000+ REPAIR WITH NO HELP FROM AUDI BRAND AND DEALER FOR A WIDELY KNOWN ISSUE. ADDITIONALLY THE O2 SENSORS HAVE RANDOMLY THROW ERROR FOR RUNNING LEAN. REPLACED O2 SENSOR BUT ISSUE CAME BACK. HAVE ALREADY TESTED MAF SENSOR AND VETTED FOR VACUUM, EXHAUST LEAKS. ALSO A KNOWN ISSUE WITH NO HELP FROM AUDI BRAND/DEALER.
NHTSA ODI 11413599
Working with the data? Download all 5 complaints as CSV · fetched from NHTSA July 20, 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 2017 Audi S6 verdict →