The MIL is on. DTCs are stored in the ECM. The DTCs may appear during monitoring of the secondary air...
Audi technical service bulletin A011546 2035002- for 2010-2012 Audi A8.
- Bulletin number
- A011546 2035002-
- Component
- Electrical system: software
- Summary
- Supersedes Technical Service Bulletin Group 01 number 13-25 dated August 23, 2013. The MIL is on. DTCs are stored in the ECM. The DTCs may appear during monitoring of the secondary air system during the engine cold starting phase. With the electric solenoid valves controlled, a diagnosis cycle is performed and the secondary air pressure is measured for a specified value. The secondary air pressure can be influenced by several factors; which may include a leak in the vacuum system or a faulty exhaust catalyst.
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