Engine, A/T Controls - Can't Engage Drive Or Reverse

SI B 25 03 09
Gear Shift Mechanism

October 2009
Technical Service

SUBJECT
X5 M, X6 M - Gears D or R Intermittently Cannot Be Engaged

MODEL
E70 (X5 M), E71 (X6 M) with 6HP26TU transmission up to 10/09

SITUATION

The customer may complain that intermittently after the start-up, gear positions D or R cannot be selected (the gear position display remains in P).

Fault code CF30 (indicating a communication malfunction between the transmission EGS module and the gear shifter GWS) will be stored in the EGS memory.

CAUSE

EGS software error

CORRECTION

Reprogram and/or recode the complete vehicle with the current version of ISTA/P (2.35.3 or higher). The target integration level is E070-09-09-522 or higher. ISTA/P 2.35.3 is planned for release in mid-October 2009.

NOTE:
Until the improved programming software is available, the D/R gears can be engaged again after:

^ Allowing the vehicle to enter sleep mode and restarting after 30 minutes; or

^ Performing a battery reset.








WARRANTY INFORMATION