Audi TSB #01133520354541
2012 Audi Q7
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- During reset of the service reminder, the following message appears on the ODIS tester: ?Secondary air injection system - checking secondary air mass?. 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.
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