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A/T - No Power Output From A/T

Date: March 28, 2007

Order No.: P-B-27.35/52a

Supersedes: P-B-27.35/52 dated February 2, 2005

Group: 27

Revision History

Revision Date Purpose

a 3/28/07 Applicable Models Updated

- 2/2/05 Initial issue

SUBJECT:
All Passenger Models Equipped with 7G-Tronic (722.9) Transmission

No Transfer of Power from Automatic Transmission 722.9

In the above model vehicles if after replacing the electro-hydraulic control unit on automatic transmission 722.9 (7G-Tronic) you experience the below conditions, this may be caused by an improper installation of the supply pipe for the multi-disc brake B3.

^ No gear can be selected in transmission mode "S" and there is no power flow in the transmission

^ In transmission mode "C" the vehicle can start off as usual.

To resolve, remove the electro-hydraulic control unit as described in WIS document AR27.19-P-0200w.





Before reinstallation, install the supply pipe (Figure 1) per WIS document AR27.19-P-0200w, step 6. Replacement parts are only necessary if the original pipe was damaged during the original installation of the valvebody.





Parts Information