Engine Controls - MIL ON/Crank But No Start/FC164 Stored
GROUP 12Engine Electricals
Engineering
12 04 01
Woodcliff Lake, NJ
Service
November 2001
SUBJECT
E38/E39/E53 "Crank-No Start" and/or FC 164 Stored in the DME
MODEL
E38 740i/iL W/M62TU produced from 09/98 up to 11/99
E39 540i/iA W/M62TU produced from 09/98 up to 11/99
E53, X5 4.4 w/M62TU produced up to 11/99
SITUATION
The following situations may be encountered:
-- Customer complains that the vehicle cranks but does not start and FC164 is stored.
-- Vehicle starts but FC164 "Height sensor (barometric pressure sensor)" is stored in the DME, and the "Check Engine" light is illuminated on the instrument cluster.
CAUSE
Possible causes:
1. Unmetered air leaks in the intake and exhaust system (incl. the secondary air system)
2. Calibration error in the DME
3. Hardware malfunction in the DME
CORRECTION
1. If fault codes other then FC 164 are stored in the DME, then diagnose and repair the root causes of those faults according to DIS/MoDic test plan, prior to proceeding with the repair described in this Service Bulletin. Any additional diagnostic/repair time should be claimed separately.
Diagnostic Hints:
Check adaptation values. If adaptations are out of the normal operating values, check for air leaks: unmetered air leaks in the intake and air leaks into the exhaust system (Incl. the secondary air system).
2. Verify that the latest calibration software is installed in the DME, and reprogram the DME with CD27.1 or higher, if necessary.
3. If FC 164 immediately returns after the latest software was installed, then replace the DME.
PROCEDURE
1. Verify that FC 164 is stored in the DME, otherwise this Service Bulletin is not applicable.
2. Check for the "BASIC control unit" numbers shown.
-- Check for unmetered air leaks in the intake, and air leaks into the exhaust system (including the secondary air system), and repair if one is found.
-- Clear DME fault memory and start engine.
-- Recheck DME fault memory.
-- If FC 164 is stored again, then replace DME.
-- If no fault code is present, repair is complete.
If NONE of the above numbers are present in the DME:
-- Reprogram DME using CD27.1 or higher. An "automatic determination" can be used to program the latest calibration.
-- After programming, verify that one of the "BASIC control unit" numbers shown is programmed into the DME.
-- Clear DME fault memory and start vehicle.
-- Recheck DME fault memory. If FC 164 is stored again, replace DME.
-- If FC 164 does not return, the repair is complete.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited and applicable Emissions Warranties.
NOTE:
Any additional work performed (e.g. unmetered air leaks in the intake, and air leaks into the exhaust system) is outside of the scope of this repair and must be addressed separately. A copy of the Diagnostic Report should be attached to the DME if replaced. All fault codes that are encountered should be included in the Warranty Claim Comments section.