Audi A6 2013 — technical service bulletin
Bulletin 01139820339191 · NHTSA communication 10225053 · issued May 17, 2013
Technical service bulletin
communication type
Power Train
component
2013
model years
7
vehicle entries
Official summary
One of the vacuum actuators on intake runner bank 1 or bank 2 is defective. There may be slight power reduction at high RPMs.
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.