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Service bulletin TT7889EN

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10084862
Published by NHTSA2016-11-28
Manufacturer's numberTT7889EN
Manufacturer's date2016-09-14
NHTSA componentPOWER TRAIN

NHTSA's summary

INFORMS TECHNICIANS THAT THERE HAVE BEEN REPORTS THAT THE MERCEDES BENZ XENTRY/STAR DIAGNOSTIC TOOL IS NOT COMMUNICATING WITH THE A59 TCM.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline

Vehicles listed
MERCEDES-BENZ MERCEDES-BENZ

Listing a model year does not mean every vehicle of it is concerned: the document says which.