Help identifying noise in car when unlocking door.

[Vwo05]

I was wondering if anyone can help identify a noise in my car. It sounds like a struggling electrical motor that’s trying to repeatedly activate something. It only comes on when I unlock my door, not when the car is on and the sound is coming from near the gas tank region.

My first thought was maybe the rear window shade but there is no issue with it going up and down. The side mirrors are activating just fine.

What could be trying to activate when the doors are unlocked?

 

[arcman]

Completely normal. It's part of your emission control/evap system.

 

[Vwo05]

Completely normal. It's part of your emission control/evap system.

Thank you! Good to know it is normal. I just had never noticed it until recently so I was worried it might be something.