DRIVING ON THE EXIT RAMP FROM FDR DRIVE TO THE 49TH STREET EXIT, WHEN SUDDENLY... ALL AIR BAGS ON THE DRIVER'S SIDE BEGAN TO POP. FRONT, REAR, 5 IN ALL. NO ACCIDENT. DID NOT HIT ANYTHING. NO APPARENT/OBVIOUS REASON. CAR GROUND TO A HALT; WILL NOT MOVE - RIGHT IN THE MIDDLE OF THE ROAD. CAR WAS PUSHED ASIDE TO ALLOW OTHERS TO PASS. CONTACTED BMW ROAD ASSISTANCE. CAR WAS TOWED TO BMW OF MANHATTAN. THEY ARE LOOKING IT OVER, AND WILL TELL ME THEIR FINDINGS. CURSORY INSPECTIONS SUGGESTS NOTHING COULD HAVE CAUSED IT. NO SCRATCHES, NO BUMPS, NO NICKS, NO NOTHING! ARRRRRGH! NLM