YOUR ENVIRON SYSTEM WORKS JUST FINE. YOU HAVE TO REMEMBER, THE CAR IS PRETTY WELL SEALED, INCLUDING THE ENGINE BAY. BECAUSE OF THAT, YOU WILL ALWAYS RECEIVE WARMER THAN AMBIENT TEMP AIR. M/B DOES NOT REC. FULL TIME USE OF THE ECON. MODE FOR THIS VERY REASON [OWNERS MAN.] I THINK YOUR BEST COMPROMISE IS TO USE THE A/C, AND ALSO DRAW IN OUTSIDE THROUGH YOUR MIDDLE CONSOLE VENTS THAT HAS BLUE MARKINGS [ I THINK! I HAVEN'T SEEN 'MAX' IN 2 MONTHS BECAUSE I'M OUT AT SEA.].<br> <br> HOPE IT HELPS,<br> ROB C.