A4 V6-3.0L (AVK) (2004)
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Detach Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- -1- at air guide.
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Remove air guide -2-.
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Remove air filter housing (arrows).
Continuation for both sides:
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Disconnect harness connector (arrow) from connector-adapter.
NOTE: Illustration depicts cylinder bank 2 (left).
Checking internal resistance
Valve for camshaft adjustment (intake):
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Connect multimeter between terminal 1 and 2 for resistance measurement.
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Specified value: 7.4 ... 8.2 Ohm
Valve for camshaft adjustment (exhaust):
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Connect multimeter between terminal 2 and 3 for resistance measurement.
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Specified value: 12.8 ... 14.2 Ohm
All:
If specified value is not obtained:
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Replace the respective solenoid valve for camshaft adjustment.