Upper Coolant Pipes, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2017 Audi S5, 2016 Audi S5, 2016 Audi S4, 2015 Audi S5, and 2015 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

When installing, bring all cable ties back to same positions.

-- Drain the coolant. Refer to DRAINING .

-- Remove the right lower section of the intake manifold. Refer to INTAKE MANIFOLD LOWER SECTION WITH FUEL RAIL, REMOVING AND INSTALLING .

-- Remove the nuts -arrows- and the high pressure line protective plate -1-.

Fig 1: Identifying Nuts -Arrows- And Protective Plate -1-

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-- Remove the front secondary air hose -arrow- from its bracket and disconnect it; do to so press the release buttons.

Fig 2: Identifying Front Air Hose -Arrow

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-- Remove the threaded connection -1-.

Fig 3: Bolts

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-- Loosen the union nuts -2 and 3- by counterholding at the connections.

-- Remove the bolts -arrows- on the retaining plates and the high pressure line.

NOTE:

Lay a cloth below the coolant pipe to catch escaping coolant.

Fig 4: Coolant Pipe Clamp And Bolt

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-- Open the clamp -2- and remove the coolant hose form the coolant pipe.

-- Remove the bolt -1- and remove the coolant pipe back out of the cylinder block -arrow-.