I JUST PICKED MY 2001 CL500 UP FROM THE DEALERSHIP TODAY, I TOOK IT IN BECAUSE MY BATTERY KEEP GOING DEAD, SOMETHING WAS DRAWING POWER FROM IT. THE BENZ TECH SAID THAT MY VACUUM PSE PUMP WAS BAD AND NEEDED TO BE REPLACED. HE SAID TO MAKE SURE I SHUT MY DOOR REALLY HARD AND IT WILL SILL AND NOT DRAIN MY BATTERY. ITS A FIX FOR NOW BUT ANY OTHER SUGGESTIONS WHERE TO BUY A CHEAP PSE PUMP OR ANY OTHER FIX! THANKS