A3 Quattro L4-2.0L Turbo (CBFA) (2009)
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Remove air guide hose - 2 -.
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Remove bolt - 4 - and the air filter housing.
‹› Ignore - 3 -.
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From above, remove the nuts - arrows - on the front exhaust pipe connection to the turbocharger.
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Remove nuts accessible from below from front exhaust pipe to the turbocharger connection.
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Disconnect the Oxygen Sensor connector.
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Remove exhaust system bracket - arrows -.