S5 Quattro Coupe V8-4.2L (CAUA) (2009)
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Remove bolt - 1 - and the left catalytic converter.
Installing
‹› Tightening specifications. Refer to => [ Muffler Assembly Overview ] See: Engine, Cooling and Exhaust/Exhaust System/Muffler/Service and
Repair/Muffler Assembly Overview.
Installation is in reverse order of removal, note the following:
‹› Replace seals and self-locking nuts.
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Install universal joint on the steering gear.
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Install ATF lines.
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Install subframe crossbrace, upper control arm and stabilizer bar and tighten the suspension strut on the control arm.
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Install oxygen sensors (G108) and (G131).
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Install left front muffler. Refer to => [ Front Muffler ] See: Engine, Cooling and Exhaust/Exhaust System/Muffler/Service and Repair/Front
Muffler.
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Install exhaust system free of stress. Refer to => [ Exhaust System, Installing ] See: Engine, Cooling and Exhaust/Exhaust System/Service and
Repair.