A/T - Code 507B/Jumps Out of 'PARK' Into Neutral
SI B 24 10 06Automatic Transmission
November 2006
Technical Service
SUBJECT
6HP26 EGS FC 507B After Transmission Replacement
MODEL
E65, E66 with ZF 6HP26 transmission
SITUATION
The following condition occurs in the workshop, after the transmission has been replaced, or reinstalled:
- When P position is selected, transmission jumps back into N.
- Message "Transmission Range P Fault" is displayed in the cluster, and "Transmission Range P may be unavailable. Engage parking brake when vehicle is stationary" is displayed in the CC.
- Fault code 507B (Parking gear sensors implausible) is stored in EGS transmission control module.
CAUSE
- Incorrect adjustment of the Emergency Park Release Cable, or
- Bent "Emergency Park Release Cable" lever, due to incorrect transmission support fixture used during transmission installation.
CORRECTION
Inspect and correct cable adjustment, or replace emergency park release lever if found damaged (bent). For the emergency park lever replacing/cable adjustment instructions refer to TIS RA 24 14 001.
NOTE:
Replacing emergency park release lever due to the previous, incorrect transmission installation is not covered under the BMW New Vehicle Warranty.
PROCEDURE
IMPORTANT:
When removing/replacing a ZF
6HP19/26 transmission, it is
recommended to use a special
transmission support fixture PN 83 30 0
494 062 (available from BMW PDCs).
Check for free emergency park release lever movement.
The release cable (2) should not touch the lever (1) at any time.
If the release cable (2) is binding on a side, the release brake lever (1) is bent and should be replaced along with the self-locking M8 nut:
Lever: PN 24 14 7 519 414
M8 nut: PN 24 14 7 515 901
Tightening torque for the M8 nut is 10 Nm.
Adjust the emergency park release cable free-play to 1-2 mm.
PARTS INFORMATION
WARRANTY INFORMATION
For information only.
Any repairs or component damage resulting from incorrect transmission installation procedures are not covered under the BMW New Vehicle, or Parts Warranties.
Disclaimer