A4 Quattro Cabriolet V6-3.2L (BKH) (2007)
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Remove the air duct hose, thereby loosening the hose clamp - 2 - and opening the clips - arrows -.
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Disconnect electrical harness connectors.
1. Change-Over Valve for Intake Manifold Flap ( N239)
2. Intake Manifold Tuning Valve Position Sensor ( G513)
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Pull off the vacuum lines - arrow A - and - arrow B -.
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Disconnect vacuum hose - arrow C - at leak detection pump.
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Disconnect electrical harness connectors.