Tires: tire splitting, 19 inch rims, clk 430

Question
I have 19 inch rims on my CLK 430 with Pirellis. 265/30 zr 19 93 y
I have had to replace each tire twice in less than three years. Every tire has split,,any suggestions? What brand of tires should I go with or what types of precautions should I take, the recommended weight load for the car is 35psi in the back and 33 in the front. But it says 50psi on the tire.
Thanks

Answer
Tobias,

I think the problem is the low aspect ratio.

You could try using 3 to 5 psi more, or you could try the more drastic, but more likely to succeed, step of going to smaller diameter rim - if they will fit over the brakes.

The pressure on the tire is a maximum.  It is only there for reference.