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Service bulletin 651998

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 id604628
Published by NHTSA1999-05-07
Manufacturer's number651998
Manufacturer's date1999-02-01
NHTSA componentEQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

NHTSA's summary

SUBJECT PERTAINING TO DSP AMPLIFIER SWITCHING TO

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

Equipment and accessories

Vehicles listed
BMW 528I1998
BMW 528IA1998 (the catalog's model; the bulletin names a series or trim of it)
BMW 540I1998
BMW 540IA1998 (the catalog's model; the bulletin names a series or trim of it)
BMW 740IA1998 (the catalog's model; the bulletin names a series or trim of it)
BMW 740ILA1998 (the catalog's model; the bulletin names a series or trim of it)
BMW 750IL1998

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

Other bulletins for the same vehicles and component
B6509162019-01-07. Service bulletin. Radio / Navigation / Head Unit Identification Guide
B1229172018-04-23. Service bulletin. SERVICE ACTION: PROGRAM DME: The incorrect dataset could be programmed into DME 5.2.1 control module.
04 17 971998-05-20. Service bulletin. SITUATION WITH THE TENSION ROD TEST GAUGE. *YC