Volvo 850 1994 — technical service bulletin
Bulletin 25810 · NHTSA communication 603368 · issued Sep 1, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1994
model years
4
vehicle entries
Official summary
Checking and adjusting boost pressure control ( bpc ) valve on the turbocharger. *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.