2003 BMW 5-SERIES Electrical System Problems

CAR SHUT DOWN WHILE DRIVING APPX 35MPH WITHOUT WARNING, NEARLY CRASH DUE TO LOSS OF STEERING ASSIST AND INSTRUMENT. DEALER REPLACED BOTH DME AND BATTERY WHICH WAS SUSPICIOUS SINCE TWO UNRELATED COMPONENT FAILED AT SAME TIME? EXTREMELY DANGEROUS WHEN IT HAPPENED IN TRAFFIC, ENDANGERING BOTH MY PASSENGERS AND OTHER DRIVERS NEARBY. RECALL TO THE DME AND BATTERY SHOULD BE ISSUED. REPAIR COST $2500. *TR

MY 2003 BMW 530I SEDAN CAUGHT FIRE DUE TO AN ELECTRICAL FAULT WHILE PARKED IN NEW HAVEN, CONNECTICUT. THE FIRE DEPARTMENT AND POLICE WERE CALLED. CASE #[XXX] WAS ASSIGNED BY OFFICER [XXX] OF THE NEW HAVEN PD. THE CAR, TOO BADLY DAMAGED TO REPAIR, WAS HAULED AWAY FOR EVENTUAL SCRAPPING. I WAS CLOSE TO THE CAR WHEN THE FIRE STARTED. FLAMES WERE ERUPTING FROM THE DASH, WHERE THE CLIMATE CONTROL SWITCHES ARE LOCATED. I TRIED SMOTHERING THE FLAMES WITH A SWEATER. THIS DID NOT INTERRUPT THE PROGRESS OF THE FIRE. THERE WAS NO PERSONAL INJURY OR PROPERTY DAMAGE OTHER THAN TO THE CAR AND ITS CONTENTS. ITEMS SITUATED IN THE FRONT SEAT AREA WERE NOT RECOVERED, DUE TO THE INTENSITY OF THE FIRE. THE APPARENT CAUSE OF THE FIRE WAS AN ELECTRICAL FAULT. IN 2010 NEW COUNTRY BMW IN HARTFORD TWICE REPLACED THE CLIMATE CONTROL FAN FINAL STAGE RESISTOR, ONCE...

WHILE DRIVING, THE CAR SUDDENLY SHUT DOWN AND LOST ALL POWER. HAD TO PULL OVER TO THE SIDE OF THE ROAD QUICKLY TO AVOID AN ACCIDENT; HAD THIS BEEN AT HIGH SPEED, THE SITUATION MIGHT HAVE BEEN WORSE. SUBSEQUENTLY WHEN TRYING TO START, THE CAR SHOWS A MYRIAD OF WARNING LIGHTS AND FAULTS. A FUSE FOR THE MAIN COMPUTER (DME) HAD BLOWN, DUE TO A WIRING SHORT BETWEEN THE ELECTRONIC THERMOSTAT AND THE MAIN COMPUTER. REPLACING THE FUSE IS NOT A PERMANENT FIX, AS IT BLOWS SHORTLY AFTER EACH TIME THE CAR IS STARTED, RENDERING THE CAR UNDRIVEABLE. THIS FIX TO REPLACE SHORTED WIRING IS IN THE THOUSANDS OF DOLLARS. THE CAR HAD BEEN METICULOUSLY MAINTAINED AND HAD NEVER SUFFERED ANY RELATED ISSUE BEFORE. THERE IS A POOR CONNECTION, FAULTY WIRING, DESIGN FLAW, OR THE LIKE IN THIS SYSTEM. *TR

INTERMITTENT ENGINE SHUT-DOWN. ENGINE SHUTS OFF WHILE VEHICLE IS IN MOTION AT ANY SPEED. "ENGINE FAILSAFE" WARNING LIGHT COMES ON. VEHICLE MUST BE STOPPED, KEY TURNED OFF AND RE-STARTED. THIS IS A SERIOUS SAFETY ISSUE THAT BMW IS AWARE OF AND HAS ISSUED A RELATED TSB. $2000 PLUS REPAIR BILL FOR A NEW "ENGINE WIRING HARNESS". BMW SHOULD BE RECALLING THESE VEHICLES. *TR