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RecallGazette

Vehicle problems, recalls & safety intelligence

Audi A4 2009–2013technical service bulletin

Bulletin A01166520354544 · NHTSA communication 10094894 · issued May 4, 2016

Technical service bulletin
communication type
Engine and Engine Cooling
component
2009–2013
model years
25
vehicle entries

Official summary

This technical service bulletin contains instructions for pressure washing ports to resolve an "air system -- action required" message.

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.