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BMW TSB #SIB-12-15-05
1998 BMW 740
TSB Document: - Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from BMW for this TSB. Call your local BMW dealer's service department & ask for a copy of TSB# SIB-12-15-05.
Affected Component: ELECTRICAL SYSTEM
- Summary
- BMW: DIAGNOSIS OF DME ME 9.2 MAP THERMOSTAT FAULT 2EF4/279B. THE SERVICE ENGINE SOON LIGHT ILLUMINATED. THE ENGINE DOES NOT OVERHEAT AND THE MAP THERMOSTAT OPERATES PROPERLY. POSSIBLE CAUSES ARE DETERIORATION OF COOLANT QUALITY; INCREASED CONTACT RESISTANCE BETWEEN THE THERMOSTAT TEMPERATURE SENSOR, THE ENGINE WIRING HARNESS AND THE DME CONNECTOR; INTERNAL DEFECT OF A MAP COOLING THERMOSTAT. *PE UPDATED 11/17/10. *PE
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