Tuesday, September 22, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Porsche 911 1994–2013technical service bulletin

Bulletin No. 22100 · NHTSA communication 10217171 · issued Jul 7, 2022

Technical service bulletin
communication type
Equipment
component
1994–2013
model years
51
vehicle entries

Official summary

Special tools information for VAS 5161A tool kit for valve cotter R&I and cylinder head repair

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.