My 2015 ML350 has 100,000 miles on the clock. Have 45,000 miles on Continental Cross Contact LX20 tires. Tires currently on the front are in reasonably good condition, the rear tires are badly worn. Mercedes has supposedly rotated the tires every 10,000 miles. Shop recommends replacing front struts and rear shocks before replacing all four tires. I’m inclined to replace the rear shocks and all four tires (with Continental Cross Contact LX25s) and then carefully watch front tires for unusual wear. Thoughts?