High Pressure Reservoir (Rail), Removing And Installing: Removing

WARNING: This page is about a different car, the 2016 Audi Q5, 2015 Audi Q5, and 2014 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Bolts -2 And 3- And Remove The Wiring Guide -1-

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-- Remove the engine cover, refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Free up the wiring harness and hoses on the wiring guide -1- using the Pry Lever80-200.

-- Pull coolant hose back -arrow-.

-- Remove the bolts -2 and 3- and move the wiring guide to the rear.

-- Open the union nuts from the respective fuel rail that must be removed.

Fig 2: Clamp And Bolts

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NOTE:

-Left arrow- for the cylinder bank 1 fuel rail

-Right arrow- for the cylinder bank 2 fuel rail

Cylinder Bank 1 Fuel Rail

Fig 3: Connectors And Check Valve

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-- Remove the connectors -1 and 2- and the check valve -3- from the bracket.

-- Open the clamps -arrows- and remove the air guide pipe -1-.

Fig 4: Air Guide Pipe & Clamps

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-- Disconnect the connector -arrow- from the Fuel Pressure Regulator Valve -N276-.

Fig 5: Fuel Pressure Regulator Valve -N276-

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Cylinder Bank 2 Fuel Rail

Fig 6: Identifying Coolant Reservoir Marking

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-- Remove the coolant reservoir and move it to the side.

-- Disconnect the connector from the Fuel Pressure Sensor -G247- -arrow-.

Fig 7: Fuel Pressure Sensor -G247- - Tightening Specification

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-- Unclip the bracket for the connectors -6 and 7-.

Fig 8: Component Locations for the Exhaust Gas Temperature Sensors

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-- Free up the wiring harness.

NOTE:

The illustration shows an engine with the code CDUC.

Continued for Both Sides:

Fig 9: Bolt -1- On The Right Intake Manifold Bracket

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-- Remove the union nut -1- on the fuel rail.

-- Remove the banjo bolt.

-- Open the high pressure line union nuts -2, 3 and 4-.

Fig 10: High Pressure Line Union Nuts & Open Lines And Connections

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-- Remove the bolts -arrows- from the fuel rail and carefully place on a clean surface.

-- Seal off all open lines and connections with clean plugs.

-- Remove the rear fuel supply line union nut on the fuel rail.

-- Open the union nuts for the high pressure lines between the fuel injectors and the fuel rail.

-- Remove the bolts from the fuel rail and carefully place on a clean surface.

-- Seal off all open lines and connections with clean plugs.