Left exhaust manifold, 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 Hose Clip Pliers Vag 1921

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Hose clamp pliers V.A.G 1921

Removing

Remove engine: Vehicles with manual transmission → Engine (vehicles with manual transmission) , vehicles with automatic transmission → Engine (vehicles with automatic transmission), removing .

Fig 2: Removing Bracket For Electrical Harness Connectors At Left From Bulkhead

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove electrical harness connectors - 1 - and - 4 - for oxygen sensors in left front exhaust pipe out of bracket and disconnect.
Remove heat insulation sleeve on wiring harness and free up individual wires.

NOTE:

In the illustration, the electrical harness connectors are depicted as installed.

Fig 3: Removing Bolt At Strap For Left Front Exhaust Pipe

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

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

NOTE:

Illustration shows the strap for a vehicle with manual transmission.

Fig 4: Removing Nuts For Left Front Exhaust Pipe/Exhaust Manifold

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

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

Fig 5: Removing Bolts & Return Line From Power-Steering Pump

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - 1 - and - 2 -.

NOTE:

To prevent oil from escaping, the hose - arrow - remains connected to power steering.

Fig 6: Removing Bolt From Oil Dipstick Guide Tube At Cylinder Head

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Unscrew guide pipe for oil dipstick at cylinder head - arrow - , pull up and remove.

Fig 7: Removing Bolts, Locating Hose Clamps And Removing Left Coolant Pipe From Coolant Hoses

GW00018158

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - 1 - and - 2 -.
Loosen hose clamps - arrows - and remove left coolant pipe from coolant hoses.

Fig 8: Removing Nuts And Left Exhaust Manifold

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Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove nuts - 1 to 12 - and remove left exhaust manifold.

Installing

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

NOTE:

Always replace self-locking nuts and O-ring.

Install left coolant pipe → Left coolant pipe, removing and installing .
Install left front exhaust pipe: Vehicles with manual transmission → Left front exhaust pipe with primary and main catalytic converter (vehicles with manual transmission), removing and installing , vehicles with automatic transmission → Left front exhaust pipe with primary and main catalytic converter (vehicles with automatic transmission), removing and installing .
Install engine: Vehicles with manual transmission → Engine (vehicles with manual transmission), installing , vehicles with automatic transmission → Engine (vehicles with automatic transmission), installing .

Torque specifications

Component	Nm
Exhaust manifold to cylinder head	25 * See note

*Replace nuts.