FRONT DRIVERS AND PASSENGER DOORS DO NOT STAY OPEN, NO TENSION AND DOOR CLOSES BACK ON YOU AFTER OPENING. WILL NOT STAY OPEN ON ZERO GRADIENT OR WHILE UPHILL. MERCEDES BENZ DEALERSHIP ATTEMPTED TO FIX AND CHANGE HINGES NUMEROUS TIMES. NOT HAS BEEN FIXED. DOOR HING HAS ZERO TENSION AND WILL NOT KEEP FRONT DOORS OPEN. VERY DANGEROUS IF CHILD IS IN BETWEEN DOORS AND DOOR CLOSES ON YOU. HAS INJURED AND BRUISED LEGS NUMEROUS TIME FOR NUMEROUS DRIVERS AND PASSENGERS.