Obeidat

I am not a fan of the mirrors used on the GLE W166... like the blind spot area is large and till now I am not able to position the mirror appropriately. Can someone please take a picture from inside the car on how the mirror should be positioned.

Kein Ersatz

If the concern is lane change, then move their field of view farther out as you have parking sensors for the close in "slow speed" contact, and you can always reposition your head when backing in to a tight spot. You can always buy this add-on stick-on convex mirrors to expand the horizontal field of view too. Any inside the car picture will be dependent on the seating position, not just the mirror position.

BACnMercedes

I was taught to push the mirrors as far out until the side of the car is barely in view still and go just past that point. The side of the car should just be out of view in the mirror. That way you can cover the most area between the side view and rear view mirrors.
Or you can always add a small “blind spot” or “cat eye” style mirror to the side view mirror.
Good luck.