Right front exhaust pipe with primary and main catalytic converter (vehicles with automatic transmission), removing and installing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 Audi S4, 2008 Audi S4, 2007 Audi S4, 2006 Audi S4, and 2005 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

Fig 1: Identifying Engine/Transmission Jack V.A.G. 1383 A

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Engine/transmission jack V.A.G 1383 A

Removing

NOTE:

All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.

Fig 2: Removing Rear Engine Cover

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Remove rear engine cover - arrows -.

Fig 3: Removing Cover In Engine Compartment (Right Side)

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Remove cover - 1 - in engine compartment (right side).

Fig 4: Removing Air Guide Hose

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Remove air guide hose - arrows -.

Fig 5: Removing Bracket For Electrical Harness Connectors At Right From Bulkhead

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Remove harness connectors - 1 to 4 - from bracket at right of bulkhead.
Disconnect electrical harness connectors - 2 - and - 4 -.
Free up oxygen sensor wires downward.
Remove right front wheel.

Fig 6: Removing Quick-Release Fasteners, Screws And Noise Insulation

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Remove quick-release fasteners - 1 - , remove screws - 2 - and remove noise insulation.

Fig 7: Disconnecting Exhaust System At Double Clamps

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NOTE:

Decoupling elements in front exhaust pipes must not be bent more than 10 ° danger of damage.

Disconnect exhaust system at double clamps - arrows -.

Fig 8: Removing Heat Shield For Driveshaft

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Remove heat shield - A - for driveshaft - arrows -.
Remove bolts at transmission/driveshaft flange.
Push driveshaft together with rear final drive. The constant velocity (CV) joints can move axially.
Tie up driveshaft to body.

Fig 9: Placing Lifting Surface Of Engine/Transmission Jack V.A.G 1383 A Centered On Housing Casing And Support Transmission From Below

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Place lifting surface of Engine/transmission jack V.A.G 1383 A centered on housing casing - arrow - and support transmission from below.

CAUTION: The lock carrier must be installed.

Fig 10: Removing Bolts And Mounting Bolts Of Subframe

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First remove bolts - 2 - and - 3 - and then mounting bolts - 1 - and - 4 - of subframe.

Fig 11: Lowering Transmission And Subframe Using Engine/Transmission Jack V.A.G 1383 A To Dimension

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Lower transmission and subframe using Engine/transmission jack V.A.G 1383 A to dimension - a -.

Dimension - a - = 50 mm.

Fig 12: Removing Heat Shield For Left Drive Axle

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Remove heat shield - 1 - for left drive axle.

Fig 13: Freeing Up Oxygen Sensor Wires At Areas Indicated By On Transmission

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Free up oxygen sensor wires at areas indicated by - arrows - on transmission.

NOTE:

Illustration shows engine/transmission assembly removed.

Fig 14: Removing Bolt At Strap For Right Front Exhaust Pipe

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Remove bolt - arrow - at strap for right front exhaust pipe.

Fig 15: Removing Nuts For Right Front Exhaust Pipe/Exhaust Manifold

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Remove nuts - 1 to 3 - for right front exhaust pipe/exhaust manifold.

NOTE:

Illustration shows engine/transmission assembly removed.

Next, disconnect front exhaust pipe from exhaust manifold.

Fig 16: Removing Bolts For Left/Right Transmission Mount

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Remove bolts - arrows - for right transmission mount at bottom.

Fig 17: Removing Bolts, Heat Shield, Transmission Support

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Remove bolts - 2 - and remove heat shield - B -.
Remove bolts - 1 - and remove transmission support.
Remove front exhaust pipe with pre- and main catalytic converters.

Installing

Installation is in reverse order of removal, note the following:

NOTE:

Replace self-locking nuts.
During installation, all cable ties must be re-installed at the same location.
Secure all hose connections using hose clamps appropriate for the model type .

Install transmission supports →37 CONTROLS, HOUSING .

Fig 18: Removing/Installing Nuts For Right Front Exhaust Pipe/Exhaust Manifold

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Tighten nuts - 1 to 3 - of front exhaust pipe/exhaust manifold bolts uniformly in stages, align catalytic converter horizontally while doing so.
Install subframe → 40 - FRONT SUSPENSION .

NOTE:

Individual mounting components of exhaust system on transmission Individual components of suspension, right side

Align exhaust system free of tension → Exhaust system, installing free of tension .

Torque specifications

Component	Nm
Front exhaust pipe with pre- and main catalytic converters to exhaust manifold	27
Front exhaust pipe with pre- and main catalytic converters to mounting strap	25
Driveshaft guard on transmission	23