What does the colors white/Blue inside the BMW Logo stand for?

blue & white colors are the Bavarian flag BMW stand for Bavarian Motor Works

White and blue colors used for every quadrant symbolize Bavarian Free State

BASICALLY AT START BMW MAKES PLANE ENGINES AND THE LOGO IS LIKE THE ENGINE PROPELER

these colors are representing the brand personality of BMW.
White represents as a peaceful, respectable and down to earth and blue represents the brand as royalty, elite class and luxury.
every brand has its colors and that colors represents the brand personality and use in the creation of brand image.

YOU ARE ASKIG ABOUT MECHANICAL QUESTION,IF COLOR IS WHITE ,THEN THE BMW SHOES THE WATER IS INTERING THE LUBRICATING OF ENGINE,AND IF BMW SHOWING COLOR BLUE IT MEANS THE B M W THE ENGINE OF BMW SHOING WEAKNESS DUE TO WORN OF PISTON RINGS,OR VALVES.

The blue and white colours are of the Bavarian flag.
BMW stands for Bavarian Motor Works.