It all depends on who the warranty is with and how good they are. Just have to research the warranty, and company, to see if its worth it.
Its always good to check exactly what is/is not covered. Often a lot parts that end up needing replacement are non-covered wear and tear items like brakes, shocks, cv boots, bushings, motor mounts, etc. See a lot of people assume, or sometimes are mislead to believe, that warranty means no repair bills. When in reality most warranties are mainly there to cover random powertrain failures (that rarely occur). Besides this expectation mismatch, 3rd party warranty companies can be difficult to deal with. They try to minimize their losses like an insurance company. So while you just want them to honor your warranty and fix your car so you can get to work, they may take a day or two to get back to your chosen shop with an approval for warranty repair, or may try to negotiate with the shop to lower the cost of the repair. The shop may not want to, forcing you to either come out of pocket for the difference or take it to another shop (hassle). And just because a dealer 'sells' 3rd party warranties, does not mean Audi is in any way affiliated with the warranty coverage or that the Audi dealer will be able to repair the car hassle free similar to the Manufacturer or CPO warranty. It also means its marked up too.
Remember warranties are profitable business. They take in more money than they payout, so on avg. consumers do not actually 'get their moneys worth' from them. Its more for piece of mind and protection against the remote chance of catastrophic problems.
Originally Posted by Alex100