Fuel Lines, Removing And Installing: Removing

WARNING: This page is about a different variant/trim than selected.

-- If equipped, remove the underbody trim panel in front of the right rear axle. Refer to UNDERBODY TRIM PANEL .

-- If necessary, remove the right underbody trim panel. Refer to UNDERBODY TRIM PANEL .

-- Disconnect the fuel lines on the underbody. Refer to CONNECTOR COUPLINGS, SEPARATING .

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-- Unclip the bracket -1- from the underbody.

-- Unclip the bracket -1- from the fuel lines.

-- Disconnect the reducing agent delivery line -3- from the connection location in the rear axle area.

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-- Press and hold the locking mechanism -arrows-.

-- Remove the reducing agent line -1-.

-- To catch escaping reducing agent place a clean cloth under the coupling point.

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

-- Clean all components and connections with water and a lint-free cloth.

-- Unclip, release and remove the reducing agent delivery line connector from the bracket in the rear axle area.

-- Secure using a pulling aid (for example a cable or string) on the fuel lines.

-- This pulling aid make the reinstallation easier, to do so select enough length.

-- Use adhesive tape to secure the pulling aid.

-- Remove fuel supply line -1- and -2-. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, SEPARATING .

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WARNING:

The fuel line is under pressure.

Fuel poses a risk of injury to the eyes and skin.

Wear protective eyewear and protective clothing to avoid injury and contact with skin. Place a cleaning cloth around the connection point before loosening hose connections. Carefully open the connection point to release the pressure.

-- Unclip the fuel lines -1- and -2- from the bracket -arrow- on the coolant expansion tank -3-.

-- Disconnect the connector -1-.

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-- Open the bracket and remove the coolant hoses from the engine.

-- Release the retainers with a screwdriver -arrow- and move the coolant expansion tank to the side.

-- Open the bracket for the refrigerant lines on the right wheel housing.

-- Unclip the refrigerant lines.

-- If equipped remove the heat shield -1- from the ABS Hydraulic Unit -N55-.

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-- To do so, unclip the heat shield -1- from the bracket -2- -arrow-.

Vehicles With Parking Heater:

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-- Remove the front section of the wheel housing liner or right front wheel housing liner. Refer to WHEELS AND TIRES .

-- Unlock and remove the fuel line -7-.

-- Unclip the fuel line from the bracket and guide out.

-- Remove the bracket for the refrigerant lines from the body.

-- Guide the fuel line under the refrigerant lines and the engine mount.

Continuation For Vehicles With SCR System:

-- Disconnect the reducing agent delivery line -2- from the Reducing Agent Injector -N474-.

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-- Press and hold the locking mechanism -arrows-.

-- Remove the reducing agent line -2-.

-- To catch escaping reducing agent place a clean cloth under the coupling point.

-- Seal all the open lines and connections with clean plugs from the Engine Bung Set :VAS6122 .

-- Clean all components and connections with water and a lint-free cloth.

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-- Unclip the shield -1- from the body -arrows-.

-- Unclip the bracket -2- for the shield from the longitudinal member.

-- If equipped, loosen the clip -4- for the parking/auxiliary heater fuel line -3- from the body.

Continuation For Vehicles Without SCR System:

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-- Unclip the shield -1- on the stud bolt from the body -arrow A-.

-- Unclip the shield -1- from the longitudinal member -2-.

-- If equipped, loosen the clip -4- for the parking/auxiliary heater fuel line -3- from the body.

Continuation For All Vehicles

-- Remove all lines upward together.

-- At the same time turn the lines, but do not tear!