Left front exhaust pipe with primary and main catalytic converter, removing and installing

WARNING: This page is about a different car, the 2008 Audi RS 4 and 2007 Audi RS 4. 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:

During installation, re-install all heat insulation sleeves and heat shields at the same locations.
All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.

Fig 2: Disconnecting Exhaust System At Clamping Sleeves

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NOTE:

Flex joint in front exhaust pipe must not be bent more than 10 ° , otherwise it may be damaged.

Disconnect exhaust system at clamping sleeves - 1 - and - 2 -.

Fig 3: Supporting Tunnel Cross Member Using VAG1383A Engine/Transmission Lift And A Piece Of Wood

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Place plunger of Engine/transmission jack V.A.G 1383 A with a block of wood inserted in between - arrow - beneath rear cross member.
First remove bolts - 1 - and - 2 - , then bolts - 3 - and - 4 -.

Fig 4: Identifying Distance Between Cross Member And Body Reaches Dimension

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Slowly lower rear cross member using engine/transmission jack V.A.G 1383 A until distance between rear cross member/chassis acquires dimension - x -.

Dimension - x - = max. 60 mm.

NOTE:

Dimension - x - must not be exceeded, otherwise drive shaft joint and lines on bulkhead can be damaged.

Fig 5: Identifying Electrical Connectors On Transmission Bracket

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Remove electrical harness connectors - 3 - and - 4 - from bracket at transmission.
Disconnect electrical harness connectors.
Remove heat insulation sleeve on wiring harness and free up individual electrical wires.

Fig 6: Removing Bolt At Left Front Exhaust Pipe Strap

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Remove bolt - 1 - at left front exhaust pipe strap.

NOTE:

Ignore - 2 -.

Fig 7: Identifying Nuts & Front Exhaust Pipe With Pre- And Main Catalytic Converters

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Remove left front exhaust pipe/exhaust manifold nuts - arrows -.
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, re-install all heat insulation sleeves and heat shields at the same locations.
During installation, all cable ties must be re-installed at the same location.

Fig 8: Identifying Nuts & Front Exhaust Pipe With Pre- And Main Catalytic Converters

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Tighten front exhaust pipe/exhaust manifold threaded connection nuts - arrows - evenly in stages while aligning main catalytic converter horizontally.
Install subframe with cross member → 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	25 ¹⁾
Mounting strap		25
¹⁾ Replace nuts.