Upper Coolant Pipes, Removing And Installing: Removing

WARNING: This page is about a different car, the 2009 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Bolts And Intake Manifold

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NOTE:

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

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

-- Remove the intake manifold upper section. Refer to Fuel Pressure Sensor -G247-, REMOVING AND INSTALLING .

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

Fig 2: Identifying Nuts -Arrows- And Protective Plate -1-

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-- Vehicles with secondary air system, remove the front secondary air hose -arrow- from its bracket and disconnect it; do to so press the release buttons.

Fig 3: Identifying Front Air Hose -Arrow

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WARNING:

There is a risk of injury because the fuel is under very high pressure.

Reduce the fuel pressure down to residual pressure before opening high pressure area of the fuel injection system.
To reduce remaining residual pressure, place clean cloth around the connector and carefully loosen connector.

-- Reduce the fuel pressure in the high pressure area. Refer to BEFORE OPENING HIGH PRESSURE FUEL INJECTION SYSTEM .

-- Remove the threaded connection -1-.

Fig 4: 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.

-- Remove the high pressure line connections -arrow-.

Fig 5: Identifying High Pressure Line Connections

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NOTE:

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

Fig 6: Coolant Pipe Clamp And Bolt

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-- Remove the coolant hose -2- from the coolant pipe.

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