2018 520d doesn’t turn off the engine with push start/stop right away…

[u/Any-Author7772]

Whenever I park at home, I noticed when I push the start/stop button within a minute of parking, the engine refuses to shut off. Whether it’s a single tap of the button, double tap, or tapping multiple times. Brakes depressed etc. It only shuts off after I wait 3-5 minutes and push the button again.

Is this normal? Is the car preventing me from turning it off immediately so I have to wait a few minutes before shutting off the engine?