Audi A4 1997–1998 — technical service bulletin
Bulletin 9801 · NHTSA communication 603131 · issued Oct 23, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1997–1998
model years
2
vehicle entries
Official summary
Turbocharger, failure due to lack of lubrication. *yc
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.