S4 Quattro Wagon V8-4.2L (BHF) (2008)
‹› Illustration shows engine removed.
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Disconnect front exhaust pipe from left exhaust manifold.
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Remove front exhaust pipe with pre and main catalytic converters.
Installing
Installation is in reverse order of removal, note the following:
‹› Replace self-locking nuts.
‹› Secure all hose connections using hose clamps appropriate for the model type.
‹› During installation, all cable ties must be re-installed at the same location.
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Tighten nuts - 1 to 3 - on front exhaust pipe/exhaust manifold bolts uniformly in stages, align catalytic converter horizontally.
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Install subframe.
‹› Individual mounting components of exhaust system on transmission => [ Individual components of suspension, right side ] See: Service and
Repair/Removal and Replacement/Exhaust System Component Overview
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Align exhaust system free of tension. Refer to => [ Exhaust System, Installing ] See: Service and Repair/Removal and Replacement/Exhaust
System, Installing.
Tightening Specifications