A/T - False 'Neutral' Indication/Codes Set
SI B 28 02 09M Double-clutch Transmission with Drivelogic
August 2009
Technical Service
SUBJECT
M3 with M DCT - Diagnosis for GWS Faults 5062 or 5139
MODEL
E90, E92, E93 with 565 and M DCT transmission up to 10/09 production
SITUATION
The customer may complain that the "N" (Neutral) symbol is being displayed in the Kombi and the message "Transmission in "N" shift to "P" when engine is turned "off" is displayed in the CC when the vehicle decelerates to a stop. In realty, the transmission stays engaged in a first or second gear and does not shifts to neutral, as indicated by the instrument cluster display.
The following faults are stored in the GWS shifter:
FC 5062 - "Fault in parking hook"
FC 5139 - "Unauthorized activation of the parking lock" with
FC A0B1 - "Selector lever implausible signal" stored in the CAS module.
CAUSE
Possible causes:
^ Incorrect installation of the parking lock Bowden cable/transmission locking lever; or
^ Defective GWS park lock
PROCEDURE
Perform all applicable ISTA test modules for the GWS gear position (test plans: B2360_DKPA_M3 and G2360_HAKPS).
1. If the the faults are currently present and the applicable ISTA test modules have failed, then inspect the transmission park lever (1) for the excessive play.
2. Check the M13 securing nut (2), which may cause an erroneous gear P position signal if not properly torqued (torque 68 Nm).
If the Bowden cable is installed correctly or the GWS faults are currently not present and all applicable test plans did not identify a root cause, then replace the GWS shifter with the updated part (P/N 61 31 7 842 102).
PARTS INFORMATION
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty or the Certified Pre-Owned Program.
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