S4 V8-4.2L (BHF) (2004)
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Remove air guide hose - arrows -.
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Remove harness connectors - 1 to 4 - from bracket at right of bulkhead.
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Disconnect electrical harness connectors - 2 - and - 4 -.
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Move oxygen sensor wires downward and clear.
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Remove right front wheel.
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Loosen quick-release screws - 1 -, remove screws - 2 - and remove sound insulation.
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Remove bracket for sound insulation - arrows -.
NOTE: Flex joint in front exhaust pipe must not be bent more than 10, otherwise it may be damaged.