Mercedes-Benz C230 2003–2005 — technical service bulletin
Bulletin 2008020002 · NHTSA communication 10024662 · issued Mar 1, 2008
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2005
model years
3
vehicle entries
Official summary
Model c230, model years 2003-2005 - replace engine vent hoses. *nj
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.