What is the powertrain warranty on the 2019 Audi A6?

I am trying to understand the coverage of the warranty for the powertrain on the 2019 Audi A6. Can someone provide me with details on how long and what is covered under this warranty?

The 2019 Audi A6 comes with a 4-year/50,000-mile limited warranty which includes coverage for the powertrain. This means that any defects or issues with the engine, transmission, or drivetrain will be covered by Audi for the first 4 years or 50,000 miles, whichever comes first.