Allroad Quattro V8-4.2L (BAS) (2004)
Air Diverter Valve: Customer Interest
Emissions - MIL ON/DTC's P1411/P1423 Stored In ECM
01 MIL on (P1411, P1423 in ECM)
26 10 02
2019936/2
June 3, 2010
Supersedes Technical Service Bulletin Group 26 number 09-02 dated March 3, 2009 for reasons listed below.
Affected Vehicles
Condition
^ MIL on.
^ DTCs for secondary air system (P1411, P1423) stored in ECM memory.
Technical Background
T-Piece in vacuum line is broken. Vacuum cannot be supplied, and combi valves do not open/close, which causes a non-operating Secondary Air
System.
Production Solution
Not applicable. Vehicle is out of production.
Service