general problems of the 2014 Mercedes Benz E350

I have had 6 blow outs or bumps in my times in 2. 5 years with these contiprocontact 245/40 r 18 97v tires in normal, urban driving. The rep at the dealership told me that this is a very common issue with these tires and he does not recommend them to anyone. The most recent blowout happened with I was driving 40 mph and I did not hit a pothole or bump. That tire was only 3 months old when it blew. In the previous 10 years, I had 2 blow outs on my previous. Please investigate.

July 23rd 2016 my tire had a leak from unknown reason , had it replaced and had a leak again on same wheel on August 5th 2016 same type of leak , continental contiprocontact size 245/40/18 97v size.

Hit pot hole on hwy 216 near abernant , al and busted 2 tires and knocked front end out of alighnment. The bill to fix the car was $796. 00 . I drive a 2014 Mercedes Benz E350.