Lower left 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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Engine support bridge 10 - 222 A

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Adapter 10 - 222 A/21

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Hose clamp pliers V.A.G 1921

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Spring-type clip pliers VAS 5024 A

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Engine Support Supplement Set T40093

Removing

Drain coolant → Cooling system, draining and filling .

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Loosen hose clip - 1 - at coolant hose.

NOTE:

Ignore - arrows -.

Remove left front muffler → Left front muffler, removing and installing .

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Remove nuts - 1 and 5 - accessible from below.

NOTE:

Nuts - 2, 3, 4 - are removed at a later time.

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Disconnect vacuum lines - arrows - to brake booster.
Lay vacuum lines aside.

NOTE:

Ignore - 1 -.

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Remove oil dipstick - 10 - from guide tube.
Remove bolts - 2 and 5 -.
Disconnect electrical connectors - 1, 3, 4, 6, 8 - and free up wiring harness.
Remove Hall sensor - 9 -.

Remove crankcase ventilation hose - 7 - by pressing release buttons.
Place wiring harness on engine.

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Remove front coolant hose - 2 - from left lower coolant line.

NOTE:

Ignore - 1 -.

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Remove nuts - 2 through 4 - accessible from above.
Remove heat shield - A - from threaded pins.
Remove heat shield - B - upward.

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Disconnect electrical connector on ABS control module - arrow - → 45 - ANTI-LOCK BRAKE SYSTEM .

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Remove bolt - 1 - and remove oil dipstick guide tube upward.
Remove bolts - 4 and 5 - and pivot hydraulic oil pipe to side.
Remove bolts - 2 and 3 - and remove left coolant pipe from coolant hose - left arrow -.
Pivot left coolant pipe upward slightly.

NOTE:

Ignore - right arrow -.

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Remove rubber seal - 1 - and remove plenum chamber covers - 2 and 3 -.

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Remove tower brace rear bolts - 3 -.
Secure Engine Support Bridge 10 - 222 A/21 with Adapter 10 - 222 A/4 at suspension strut towers.

Support for left and right side of vehicle is marked.
The middle contact point - 2 - of the support is placed on tower brace front bolts.
The Adapters 10 - 222 A/21 are secured with tower brace rear bolts - 3 -.
The knurled thumb screw - 1 - must be turned downward far enough so that the contact plate rests on strut tower.