A/T - ZF 6 Speed Driveline Downshift Clunk/Knock
307-13DATE
06/03
Amended
O6/O4
XK
MODEL
2003-04 MY
XK Range
VIN
Refer to text
Driveline Clunk/Knock When Downshifting -
ZF 6HP26 Automatic Transmission -
Repair Procedure
Remove and destroy Bulletin 307-13, dated 06/03.
Replace with this Bulletin.
Revisions are marked with a bar and asterisks.
Issue:
Owners of some 2003 MY-ON XK vehicles, equipped with the ZF 6HP26 automatic transmission, may complain of a driveline clunk/knock when changing from reverse to drive, or while downshifting from fifth to fourth or second to first when the vehicle is slowing.
*A modified transmission output shaft flange and seal has been released to address this concern.*
Action:
In case of a verified customer complaint of the above condition, follow the workshop procedure outlined below.
WORKSHOP PROCEDURE
*1. Install a new automatic transmission extension housing seal and output flange (see Workshop Manual, section: 301-01, SRO 44.20.18).
Note:
When removing the transmission output shaft flange, if an 0-ring is installed behind the nut, the 0-ring should be removed and discarded. It is only required for testing during initial build of the transmission and a replacement is not required.*
Parts Information:
Warranty Information:
Warranty claims should be submitted quoting the information found in the table. This will result in payment of the stated time and, where applicable parts/miscellaneous expense codes as listed.
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