BMW: OIL SEPARATOR-COLD CLIMATE CONDITIONS. CERTAIN AREAS OF THE US EXPERIENCE EXTREMELY COLD CLIMATE CONDITIONS DURING THE WINTER MONTHS. A SMALL NUMBER OF VEHICLES HAVE EXPERIENCED PROBLEMS RANGING FROM LEAKING OR BROKEN VALVE COVERS TO COMPLETE ENGINE FAILURE. INCLUDE MODELS E39, 46, 53, 60, 83, AND E85. NO MODEL YEARS LISTED. *PE