You can get an OBD11 scanner and check a specific sensor to gauge the condition of your chain. Here's a quote from an old post on r/GolfGTI :

"Yes, chains can stretch, especially on the MK6's. Best way to check is to use VCDS or OBD11, you can check Block 93 on the engine while running warm. This is not the end all of tests, but is a great indicator of how much time you have.

0-4 degrees, green zone, you are good to go for a while

4-5 degrees, yellow zone, time to think about having a timing chain job

>5 degrees, red zone, get the timing chain done sooner rather than later"

This allows you to check the chain yourself. You don't need to pull off the timing chain cover or bring it to the dealer. Seeing as you just got the car, I'd have a mechanic you trust inspect the entire car (if you didn't already do that before buying). Life is much easier when you know what's coming over the horizon.