Upper Left Coolant Pipe, Removing And Installing: Removing

-- Empty the coolant circuit. Refer to A/C System with Refrigerant R134a.

-- Support the engine in its installed position. Refer to ENGINE, SUPPORTING IN INSTALLED POSITION .

-- Remove the noise insulations. Refer to NOISE INSULATION .

-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Remove the front left and right wheel housing liners. Refer to WHEEL HOUSING LINER .

-- Remove the left and right front wheel spoiler. Refer to WHEEL HOUSING LINER .

-- Remove the left and right bolts -arrows- and the heat shield -1-.

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-- Remove the left and right drive axles from the transmission flange shaft. Refer to DRIVE AXLE .

-- Disconnect the left and right connector -1- from the front vehicle level sensor -G78- / -G289- and free up the wire -arrow-.

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Audi S6/S7 

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-- Remove the nut -1- and remove the bracket with the wiring harness from the subframe.

Audi RS6/RS7 

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-- Remove bolt -arrow-, push the bracket with the wiring harness aside.

Continuation for All Vehicles 

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-- Remove the steering intermediate shaft from the steering gear push them upward. Refer to STEERING INTERMEDIATE SHAFT, REMOVING AND INSTALLING .

-- Release the safety catch in direction of -arrow-, push the retainer down and disconnect the connector from -2- from the Power Steering Control Module -J500-.

-- Disconnect the connector -1- from the Power Steering Control Module -J500-.

-- Free up the wiring harness.

-- Free up the clip -arrow-.

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-- Disconnect the connector -1- and free up the wire.

-- Loosen the hose clamps -arrows-, then clamp off the coolant hoses with the :3094  and remove the hoses.

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-- Loosen the clamp -1- and remove the coolant hose.

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-- Disconnect the connector -2- and free up the wire.

-- Disconnect the left and right connectors -1 and 2-.

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-- Remove the connector -arrow- from the mount, disconnect it, and then guide it through the subframe.

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-- Remove engine bracket left and right bolt -arrow-.

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Audi RS6/RS7 

-- Remove the left and right front longitudinal member. Refer to LOCK CARRIER .

Continuation for All Vehicles 

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-- Support the subframe using :VAS6931  as shown in the illustration.

-- Mark the location of the subframe to the longitudinal members using a felt-tip pen.

-- Remove the left and right subframe bolts -1, 2 and 3- in a diagonal sequence.

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-- Lower the subframe using the :VAS6931  just enough so that the upper left coolant tube is accessible, while at the same time paying attention to the clearance for the right electrical cables.

-- Remove the bolt -1- and the nut -2-, and set the refrigerant line to the side.

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-- Remove the bolt -1- and then unclip and remove the oil dipstick tube -2- from the intake manifold.

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-- Remove the double bolt -1- and the nut -2- and then push the mount -3- and the wiring harness slightly to the side.

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-- Remove the bolts -arrows- and remove the left drive axle heat shield.

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-- Free up the wiring harness.

-- Remove the nut -3- and free up the hose clamp.

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-- Loosen the clamps -arrows- to remove the coolant hose from the upper left coolant pipe -2-.

-- Unclip the upper left coolant pipe from the mount -1-.