Mercedes-Benz C300 2005–2008 — technical service bulletin
Bulletin PB 54-21/191 · NHTSA communication 10025443 · issued Feb 14, 2008
Technical service bulletin
communication type
Exterior Lighting
component
2005–2008
model years
5
vehicle entries
Official summary
Fuel gauge reads empty, turn signal lamps pulse quicker, central locking inoperative using key, no communication with rear sam. *pe
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.