2004 Mercedes-Benz CL215 Problems

I HAVE A 2004 CL 500 MERCEDES. I HAVE NOTICED THAT I HAVE HAD A DEAD SPOT IN THE THROTTLE RESPONSE. I FIRST THOUGHT MAYBE IT WAS HOW I HAD MY FOOT ON THE PEDAL BUT I FIGURED OUT THAT WASN'T IT. I DID NOTICE THAT SOMETIMES THE CAR JUST WONT GO THEN LURCHES I ALMOST HIT SOMEONE IN THE POST OFFICE PARKING LOT. NO RESPONSE THEN IT JUMPED FORWARD. LAST SUNDAY, I WENT TOO MAKE A LEFT HAND TURN AND NO THROTTLE RESPONSE AT ALL. I FLOORED THE PEDAL,THE ENGINE REVVED REALLY HARD BUT THE CAR WOULDN'T MOVE, EXCEPT AT A SLOW PACE, I WAS ALMOST HIT BY TWO OTHER CARS THAT HAD STARTED TO APPROACH AND THEY BOTH HAD TO SKID TO A STOP TO AVOID HITTING ME. THE CAR MOVED VERY SLOWLY UNTIL I WAS OUT OF THE INTERSECTION, WHERE I PULLED OVER TO LET MY HEART STOP BEATING OUT OF MY CHEST. I THEN STARTED HOME AND I HAD TO FLOOR IT TO GET THE 1.5 MILES TO MY HOUSE..THIS CAR ONLY HAS 49K MILES AND COST 139,000.00 NEW. I JUST SOLD A JAGUAR 2003 XJR AND IT HAD 85K MILES ON IT AND IT HAD A 5 SPEED MERCEDES TRANS IN IT AND I NEVER HAD ONE DAYS TROUBLE WITH IT. I ALSO HAD THE SAME CAR FROM A FEW YEARS BEFORE WITH THE 5 SPEED TRANSMISSION AND IT NEVER GAVE ME A MINUTES TROUBLE. I WENT BACK TO MY CAR ABOUT 15 MINUTES LATER AND THE CAR WAS FINE. MONDAY MORNING I TOOK IT TOO THE DEALER AND THEY TOLD ME IT WAS THE VALVE BODY. IT WILL COST ME 2,200.00 ON A 49K MILE CAR. HE TOLD ME THIS HAS BEEN HAPPENING ALOT ON THESE 7 SPEED TRANSMISSIONS (IN LATE 2003 AS A 2004 MODEL, MERCEDES INTRODUCED THE NEW 7 SPEED TRANSMISSION) AND THEY HAVE UPDATED THE VALVE BODY WITH ONE THAT DOESN'T DO THIS. I HAVE FRIENDS THAT HAD TO REPAIR THE SAME THING BUT UNDER WARRANTY. I THINK THIS IS A SERIOUS SAFETY ISSUE AND SHOULD BE INVESTIGATED AND FAST. I CAN AFFORD TO FIX THE ISSUE BUT I DON'T FEEL I SHOULD HAVE TOO, I AM TOLD THAT THE FLUID IN THE TRANS GETS INTO THE ELECTRICAL PARTS AND SHORTS THEM OUT. THIS NEEDS TOO BE A FULL RECALL ON ALL THE EARLY 7 SPEED TRANSMISSION CARS. THE ONES WITH THE OLD PART NUMBERS. PLEASE ADVISE. *TR