How to check windshield wiper fluid

How to check windshield wiper fluid.
Check and refill windshield wipers fluid on VW Polo 9N.
Showing the windshield wiper fluid symbol.

On most cars, the windshield washer fluid also called windshield wiper fluid will have a blue refill cap and the symbol shown in the video.

Since you are checking the windshield wiper fluid, you can check other fluids too as shown in the video bellow.