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Service bulletin 6420504

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 id10019002
Published by NHTSA2006-01-31
Manufacturer's number6420504
Manufacturer's date2005-12-01
Replaces642205
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR

NHTSA's summary

BLOWER MOTOR OPERATES AT REDUCED SPEED. BMW E65, E66 (7 SERIES). *TT

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

Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
UNKNOWN UNKNOWN

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