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Learning In Selection Range Sensor Not Possible After EHS Replacement (LI27.60-P-044968)

Publication date: 2009-01-15
Reference number: LI27.60-P-044968
Supersedes refnos: 27.60/65, 27.60/65A

LEARNING IN SELECTION RANGE SENSOR NOT POSSIBLE AFTER EHS REPLACEMENT

LEARNING IN SELECTION RANGE SENSOR NOT POSSIBLE AFTER EHS REPLACEMENT

TECHNICAL SERVICE BULLETIN

Reference Number(s): LI27.60-P-044968 Version 1 (T-B-27.60/65A, March 28, 2007), Date of Issue:  January 15, 2009
Mercedes-Benz: All Light Truck Models Equipped with 7G-Tronic (722.9) Transmission
Design Group: 27.60 Gearshift, control
Reason For Change:
Superceded Bulletin(s): T-B-27.60/65, Date of Issue:  December 13, 2005

COMPLAINT

Learning in Selection Range Sensor Not Possible After EHS Replacement

CAUSE

In the above model vehicles, after removing / installing the electrohydraulic control unit (EHS), learning in the selection range sensor is not possible if the retaining bolt of the detent plate was not inserted into the plastic bracket of the selector range valve (Fig 1). During initial startup with Star Diagnosis, the message "The prerequisites are not fulfilled or the peripherals are not operational" is displayed, although the shift rod has been correctly adjusted.

REMEDY

To resolve, remove / reinstall EHS being sure to insert bolt into bracket on valve and proceed to teach the sensor using Star Diagnosis.

ATTACHMENTS

Fig 1: Selector Range Valve
G05423354

SYMPTOMS

SYMPTOMS

Automatic transmission / Power transmission / Automatic transmission - function / General /