A6 Quattro Wagon V6-2.8L (AFC) (1995)
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Secondary Air Injection Combination Valve: Service and Repair
PROCEDURE
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Remove engine cover.
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Disconnect wiring and vacuum line.
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Loosen screws on flange between connecting pipe and combination valve.
Installation is the reverse of removal.
NOTE: When installing the combination valve, install new gasket between combination valve and connecting pipe.