BMW E39 1998 — technical service bulletin
Bulletin 110300 · NHTSA communication 613548 · issued May 1, 2000
Technical service bulletin
communication type
Engine and Engine Cooling
component
1998
model years
3
vehicle entries
Official summary
Consumer complaints regarding coolant temperature gauge fluctuates (in and out of red zone) and / or heater output too low. **mr
Vehicles covered
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.