Mercedes-Benz S550 2005–2008 — technical service bulletin
Bulletin PB-32-22-75 · NHTSA communication 10028605 · issued Mar 20, 2009
Technical service bulletin
communication type
Service Brakes, Air
component
2005–2008
model years
4
vehicle entries
Official summary
Mercedes vehicle: airmatic visit workshop displayed within instrument cluster. Model 221.171 and 221.186. Model years unknown. *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.