Right coolant pipe, removing and installing

WARNING: This page is about a different car, the 2010 Audi A8, 2009 Audi A8, 2008 Audi A8, and 2007 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

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Hose clamp pliers V.A.G 1921

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Spring-type clip pliers VAS 5024 A

Removing

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Pull rear engine cover - arrows - off.
Drain coolant → Cooling system, draining and filling .
Remove right cylinder head cover → Right cylinder head cover, removing and installing .

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Remove rear sound insulation by loosening fasteners - 2 and 4 -.

NOTE:

Ignore items - 1 and 3 -.

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Remove bracket for noise insulation - arrows -.

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Remove drive shaft heat shield - 1 - from transmission - arrows -.

NOTE:

Ignore - 2 -.

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Remove nuts - 1 and 4 - accessible from below.

NOTE:

Nuts - 2 and 3 - are removed at a later time.

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Disconnect vacuum hose - 1 - and remove air duct - 2 -.
Remove bolts - arrows -.
Rotate lower part of air filter housing and disconnect electrical connector - 3 - on Intake Air Switch-Over valve N335.
Remove lower part of air filter housing.

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Remove lower air guide hose from lower part of air filter housing - arrow -.

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Remove nuts - 2 and 3 - accessible from above.
Remove heat shield - B - from threaded pins.
Remove heat shield - A - upward.

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Remove coolant hose - arrow - from right coolant pipe.

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Remove bolts - 1 and 2 -.
Remove right coolant pipe from coolant hoses - arrows -.

Installing

Tightening torques → Coolant pipes, assembly overview , Right heat shield , Right drive shaft heat shield .

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

NOTE:

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.

Install right cylinder head cover → Right cylinder head cover, removing and installing .
Install air filter housing → 24 - MULTIPORT FUEL INJECTION (MFI) .
Fill with coolant → Filling .