1993 BMW 318

Report Date:
April 11, 1994
Campaign Number:
94V066000
Component:
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

Summary:
FEED FUEL HOSES CAN HARDEN AND "SET" OVER TIME, ALLOWING A SEEPAGE OF FUEL AT THE CONNECTION BETWEEN THE HOSE AND THE ENGINE FITTING. THE CLAMP USED TO HOLD THE HOSE TO THE FITTING IS UNABLE TO COMPENSATE FOR THE HARDENING OF THE FEED FUEL HOSE.

Consequence Summary:
FUEL SEEPAGE BETWEEN THE FEED FUEL HOSE AND THE ENGINE FITTING CAN RESULT IN FREE FUEL IN THE ENGINE COMPARTMENT, WHICH COULD RESULT IN A FIRE WHEN EXPOSED TO A SOURCE OF IGNITION.

Corrective Summary:
A REDESIGNED FEED FUEL HOSE AND HOSE CLAMP WILL BE INSTALLED TO ALLEVIATE THE FUEL SEEPAGE.

1993 BMW 318

Report Date:
February 17, 1994
Campaign Number:
94V037000
Component:
FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM

Summary:
THE ADHESIVE MATERIAL OF THE TWO PIECE THROTTLE BODY HEATER MIGRATES INTO THE CIRCULATION CHAMBER CAUSING BUILD UP OF IMPURITIES AND RESTRICTION OF FLOW WITHIN THE CHAMBER. THIS CONDITION AND WATER VAPORS FROM THE CRANK THAT FREEZES AT LOW AMBIENT AIR TEMPERATURES PREVENTS THE THROTTLE PLATE FROM CLOSING AS THE DRIVER RELEASES THE GAS PEDAL, CAUSING LOSS OF THROTTLE CONTROL.

Consequence Summary:
IF LOSS OF THROTTLE CONTROL FROM THE FROZEN THROTTLE BODY OCCURS WHILE THE VEHICLE IS IN MOTION, A VEHICLE CRASH COULD OCCUR.

Corrective Summary:
BMW DEALERS WILL REPLACE THE THROTTLE BODY HEATER WITH A MODIFIED HEATER.