A/T - Jumps Into Neutral After Selecting Drive/Reverse
SI B 24 09 08Automatic Transmission
March 2010
Technical Service
This Service Information bulletin supersedes SI B13 04 09 dated October 2008.
[NEW] designates changes to this revision
SUBJECT
GWS - Transmission Jumps Back to Neutral
MODEL
E70 (X5 3.0i) with N52K and 6HP19TU from 12/06 up to 09/08
E70 (X5 4.8i) with N62TU and 6HP26TU from 12/06 up to 09/08
E60, E61 (528i, 535i) with N52K/N54 and 6HP19TU from 03/07 up to 09/08
E60 (550i) with N62TU and 6HP26TU from 03/07 up to 09/08
SITUATION
The customer may complain that intermittently, after selecting the drive or reverse gears, the transmission jumps back to neutral. Both displays (in the Kombi and on the GWS) are switching from D (or R) to N at the same time.
No faults are stored in either the EGS transmission control module or in the GWS shifter.
CAUSE
GWS software error
SOLUTION
Check the vehicle's integration level.
If the integration level is:
^ On E60, E61 vehicles E060-08-03-550 or lower
^ On E70 vehicles - E070-08-05-525 or lower
[NEW] Reprogram and recode the complete vehicle with a current ISTA/P version. The target integration levels should be higher than E060-08-09-520 or E070-08-09-520, respectively, for E60 and E61, and E70 vehicles.
[NEW] WARRANTY INFORMATION