Audi A5 2009–2013 — technical service bulletin
Bulletin A011681 2033001- · NHTSA communication 10127994 · issued Oct 13, 2016
Technical service bulletin
communication type
Equipment
component
2009–2013
model years
20
vehicle entries
Official summary
This bulletin provides instructions on how to clean the secondary air ports if they have too much carbon and cause a restriction.
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.