Transmission Failure problems of the 1999 Mercedes Benz E320

I bought a mercedes ml320 in 2003 as certified car with only 45628 miles. I drove on my way from mariposa on 8/23/05 the car suddenly locked the transmission to low gear and refused shift to high gear automatically. I stopped the car and restarted the engine maintaining a low speed back home. On 8/24/05 I brought the ml320 to fresno mercedes for repair. Finally I found that they sold me ml320 without proper disclosure about the car previous history of transmission malfunction and services in 2003. I would not buy that car if I was told ml320 having had transmission services. The transmission failed at 76349 miles did indicate that mechanical failure could endanger the driver's life in freeway at 65 miles when following car could hit from behind as a result of no proper warning signal like brake light. It is proper that your good office look into this matter. Even more, if it warrant ml320 should have a recall to fix the transmission before it could happen to endanger public safety. It is my opinion that 100,000 warranty must be equally printed with one year warranty which ever comes first. Otherwise, when you buy a certified car you thought you bought 50,000 miles powertrain warranty. It could warrant one year and it is very misleading. Your attention is invited to this matter strongly. Sincerely yours michael.