Left combination valve for secondary air injection (AIR), 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 Hose Clamps 3094

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Hose clamps up to 25 mm dia. 3094

Removing

NOTE:

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

Remove left front wheel.

Fig 2: 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 3: Removing Bolts At Bottom Of Left Secondary Air Injection Combination Valve

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Remove bolts - 1 - and - 5 - at bottom of left secondary air injection combination valve.

NOTE:

The illustration depicts the engine removed from behind.
Ignore items - 2 to 4 -.

Fig 4: Pulling Rear Engine Cover Off

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Pull rear engine cover off - arrows -.

Fig 5: Removing Cover In Engine Compartment (Left Side)

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

Fig 6: Removing Coolant Hoses & Coolant Expansion Tank

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Clamp off coolant hose - 2 - using hose clamp 3094 and disconnect from coolant expansion tank.
Seal connection using a plug that fits.
Remove coolant expansion tank - arrow -.
Disconnect electrical wire from engine coolant level (ECL) warning switch F66 at bottom on coolant reservoir and set aside coolant reservoir with coolant hose - 1 - connected.

Fig 7: Removing Ground (GND) Connection & Vacuum Lines To Brake Booster From Distribution Piece

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Remove vacuum hoses - 1 - and - 3 - to brake booster at bulkhead.

NOTE:

Ignore - 1 -.

Fig 8: Removing Bolts At Bottom Of Left Secondary Air Injection Combination Valve

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Remove bolts - 2 -.
Remove vacuum hose - 3 - and air guide hose - 4 - from secondary air injection combination valve by pressing release buttons.
Remove secondary air injection combination valve with connecting pipe.

NOTE:

The illustration depicts the engine removed from behind.
Ignore - 1 - and - 5 -.

Installing

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

NOTE:

Replace gaskets and O-rings.
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.

Check coolant level Filling .

Torque specifications

Component		Nm
Connecting pipe at	Cylinder head	9
Secondary Air Injection (AIR) combi-valve		9