Zoon,

I just got the black velour dash cover from Dash Designs for my 190E. Also have one in my 4Runner for over 7 years. Dash still looks brand new. No cracks...nada. The black dash on the MB used to get soooo hot! But not anymore. The interior is not any cooler with just a dash cover. You're better off getting your windows tinted.

Jeff

P.S. It's hot over here in Hawaii also.