What are the most important features to look for when buying a used Audi A6?

I am considering buying a used Audi A6 and I want to make sure I get the best deal and a reliable vehicle. What are the most important features I should look for and what should I be cautious of when shopping for a used Audi A6?

First and foremost, make sure to check the maintenance records of the car. You want to make sure the car has been well taken care of and all necessary services have been performed. Also, pay attention to the mileage and condition of the tires. Audi A6s are known for their smooth rides, so make sure the tires are in good condition for optimal driving experience.