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Service bulletin MSG1407

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 id52261
Published by NHTSA1997-07-17
Manufacturer's numberMSG1407
Manufacturer's date1997-01-27
NHTSA componentPOWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

NHTSA's summary

NEW DIFFERENTIAL HAS A FLANGE WITH 4 HOLES VERSUS THE OLD FLANGE THAT HAS 6 HOLES. *TW

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, Differential

Vehicles listed
BMW M31996

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