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RecallGazette

Vehicle problems, recalls & safety intelligence

Mercedes-Benz R320 2005–2009technical service bulletin

Bulletin TB-91-16-177 · NHTSA communication 10028668 · issued May 11, 2009

Technical service bulletin
communication type
Seats
component
2005–2009
model years
20
vehicle entries

Official summary

Mercedes: active head restraints activate for no reason. This may be caused by damage to the seat wiring harness causing a short circuit. Models 164 and 251. Model years unknown. *pe updated 9/18/09. *pe

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.