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Service bulletin 170199

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 id608239
Published by NHTSA1999-11-12
Manufacturer's number170199
Manufacturer's date1999-07-01
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

SUBJECT REGARDING THE VENT HOSE WHICH CONNECTS THE EXPANSION TANK, RADIATOR AND THERMOSTAT HOUSING MAY BE PLUGGED CAUSING POSSIBLE INADEQUATE VENTING OF THE COOLANT SYSTEM ON VEHICLES WITH A M73 ENGINE PRODUCED FROM 11/98 - 3/99. *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

Engine, Cooling system

Vehicles listed
BMW E38

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