During normal driving, Pirelli tires have bubbles, resulting in air leakage. Tires will eventually run flat. Pirelli tires installed on new vehicle cannot support the weight of the vehicle.

The vehicle is equipped with Pirelli 21 inch tires. All four tires have lost air and had bubbles on the sidewall. The first tire went flat after hitting a 2 inch pothole. It was replaced. However, tires 2, 3 & 4 all had bubbles on the sidewalls. The tires placed on the vehicle are deficient. the vehicle weight exceeds the capacity of the Pirelli tires. In the second defect tire situation last week, it almost resulted in a collision due to sudden loss of tire pressure on [XXX] in Indianpolis, IN. I will attach a copy of the repair bills for all four tires. The vehicle must change the 21 inch rims. Also, our second Mercedes had a flat tire today. Five (5) flat tires in 40 days of ownership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)