2008 BMW 535XI

VEHICLE IS STATION WAGON VARIANT OF 535. THE STATION WAGON HAS A POOR DESIGN WHERE THE PANORAMIC SUNROOF (STANDARD EQUIPMENT) IS GUTTER PRONE TO CLOGGING, AND WATER WHICH ENTERS THE PASSENGER COMPARTMENT ACCUMULATES IN AN ELECTRONICS WELL UNDER THE CARGO FLOOR UNKNOWN TO THE DRIVER. THIS WATER CORRODES CONNECTIONS TO A NUMBER OF ELECTRONIC MODULES AND DAMAGES THE MODULES THEMSELVES WHEN SUBMERGED. THERE ARE MANY AFFECTED FUNCTIONS WHICH CAN BE DISRUPTED, BUT CRITICALLY SENSORS WHICH AFFECT WHETHER THE PASSENGER SEAT IS OCCUPIED. AN INCORRECT DETERMINATION OF PASSENGER SIDE SEAT OCCUPANCY COULD EITHER CAUSE THE AIRBAG TO DEPLOY WITH AN UNDERWEIGHT PASSENGER OR CAUSE THE AIRBAG NOT TO DEPLOY WHEN A PASSENGER IS PRESENT. MY VEHICLE RECENTLY HAD THESE MODULES SUBMERGED AND IT APPEARS TO NOT BE AN UNCOMMON PROBLEM - PARTICULARLY FOR THE STATION WAGON VARIANT. *TR