Component Description
VISIBILITY:DEFROSTER/DEFOGGER SYSTEM:WINDSHIELD:HEATER CORE
Manufacturer That Filed Defect/noncompliance Report
BAYERISCHE MOTOREN WERKE
Begin Date Of Manufacturing
19830101
End Date Of Manufacturing
19930101
Vehicle, Equipment Or Tire Report
0
Potential Number Of Units Affected
375000
Date Owner Notified By MFR
19930604
Recall Initiator (MFR/OVSC/ODI)
ODI
Mfg
BMW of North America, LLC
Report Received Date
19930201
Record Creation Date
19930205
Regulation Part Number
Defect Summary
THE MALFUNCTION OR FAILURE OF A COOLANT SYSTEM COMPONENT RESULTS IN SIGNIFICANTLY INCREASED COOLANT TEMPERATURE AND A RESULTING INCREASE IN SYSTEM PRESSURE.
Consequence Summary
VEHICLES OPERATED UNDER THIS INCREASED COOLING SYSTEMPRESSURE CONDITION CAN SUFFER DAMAGE OR FAILURE OF PARTS OF THE COOLING SYSTEMSUCH AS (1) LEAKAGE FROM A COOLANT HOSE, (2) LEAKAGE OF THE RADIATOR OREXPANSION TANK, (3) DISCONNECTION OF A HOSE FROM A PIPE OR A FITTING, AND (4)CRACKS IN THE HEATER CORE END PIECE RESULTING IN COOLANT LEAKAGE. IN SOME CASES,BOILING COOLANT CAN CONTACT THE LOWER RIGHT LEG OF THE DRIVER RESULTING INBURNS. ALSO, ESCAPING COOLANT IN THE PASSENGER COMPARTMENT CAN CAUSE VAPORFOGGING OF THE INTERIOR SURFACE OF THE WINDOWS, REDUCING DRIVER VISIBILITY.
Corrective Summary
DEALERS WILL INSTALL A THERMOSTATIC BYPASS VALVE IN THE ENGINE COMPARTMENT TO CONTROL COOLANT TEMPERATURE IN THE HEATER CORE. ALSO, A NEW DESIGN RADIATOR CAP WILL BE INSTALLED, TO CONTROL PRESSURE AND PROVIDE GREATER COOLANT OVERFLOW IN THE EVENT OF OVERHEATING.
Recall Notes
SYSTEM: COOLANT SYSTEM.VEHICLE DESCRIPTION: PASSENGER CARS.