BMW M Coupe 1998 — technical service bulletin
Bulletin 651698 · NHTSA communication 604630 · issued Feb 1, 1999
Technical service bulletin
communication type
Equipment
component
1998
model years
4
vehicle entries
Official summary
Procedures on installing i-bus wire for the cd changer. *tt
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.