Audi A5 2009–2013 — technical service bulletin
Bulletin A011335 2035454- · NHTSA communication 10121295 · issued Oct 8, 2013
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2009–2013
model years
17
vehicle entries
Official summary
During reset of the service reminder, the following message appears on the ODIS tester: ?Secondary air injection system - checking secondary air mass?. MIL is not illuminated. Under certain driving conditions, the secondary air ports in the cylinder head can accumulate carbon over time, causing a restriction. The ODIS tester can identify the state of the restriction, and will request that the system is cleaned in order to prevent the MIL from illuminating.
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.