Home · 2016 Audi S6 · Complaints

What 19 owners told NHTSA about the 2016 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.

All (19)Crash / fire / injury (1)Engine (13)Transmission & drivetrain (3)Electrical system (2)Brakes (1)Driver assistance (1)Engine & cooling (1)Fuel system (1)Speed control (1)Steering (1)Suspension (1)

1 of 19 complaints match · Brakes · clear filters

Nov 27, 2025Brakes

The front passenger-side 6-piston Brembo caliper's (Part No. 20.A989.63) external steel crossover tube failed due to corrosion, specifically where the tubing was covered by a protective rubber sleeve, which trapped moisture and road salt. This led to a catastrophic loss of brake fluid and braking capability. This appears to be a systemic corrosion defect.

NHTSA ODI 11701826

Working with the data? Download all 19 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 2016 Audi S6 verdict →