NHTSA Complaint #10514462 — 2012 MCI J4500

THIS PROBLEM EXISTS ON AT LEAST 4 OUT OF 10, MCI MOTOR-COACHES MANUFACTURED FROM 2006 TO 2013. THE PROBLEM HAS NOT BEEN REPORTED NOR INVESTIGATED BECAUSE IT REMAINS UN-DETECTED DURING ROUTINE MAINTENANCE, COMPUTER DIAGNOSTICS OR BY ANY COMPANY MECHANICS. THE ISSUE ONLY BECOMES APPARENT AFTER SEVERAL HOURS OF CONTINUOUS DRIVING A (MINIMUM OF 400 MILES ) MCI PASSENGER MOTOR-COACH. NO FACILITY OR MECHANIC WILL DRIVE THE VEHICLE FOR THE EXTENDED AMOUNT OF TIME TO DETECT THE PROBLEM. THERE IS ALSO NO EQUIPMENT/MONITOR AVAILABLE TO MONITOR OR EVALUATE THE AIR QUALITY IN THE DRIVER CABIN AREA. THE DRIVER AREA BEGINS TO SMELL OF ANTIFREEZE VAPORS/TOXIC FUMES THAT HAVE ESCAPED INTO THE DRIVER COCKPIT. THERE IS NO OBVIOUS LEAKS OF ANY COOLANT/ANTIFREEZE IN THE DRIVER AREA AND THE DRIVER AC/HEATER CORE APPEARS TO HAVE NO LEAKS YET THE TOXIC FUMES/VAPORS ARE SEEPING INTO THE DRIVER CABIN. THE DRIVERS ARE FORCED TO COPE WITH CONTINUOUS EXPOSURE OF THE DANGEROUS FUMES/VAPORS THAT NOT ONLY AFFECT THE ENTIRE ENVIRONMENT AND AIR QUALITY BUT THE HEALTH OF THE DRIVER AND POSSIBLY THE GENERAL PUBLIC/PASSENGERS. *TR