Upper Toothed Belt Guard, Removing And Installing: Removing

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

• Follow the guidelines for clean working conditions when working on the fuel supply system. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

-- Disconnect the fuel lines -1 and 2-, to do this push the hose coupling down -arrow A- then press the release buttons -arrow B-.

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-- Remove the hose coupling with the release buttons pressed.

-- Free up the bracket -3- with the fuel hoses.

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-- Remove the nut -2- and bolts -1-.

-- Move the fuel filter -4- aside.

Vehicles with One Differential Pressure Line: 

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-- Remove the Exhaust Gas Temperature Sensor 3 -G495- -item B- with a tool from the Diesel Engine Tool Set - 17mm: T10395 A  .

Vehicles with SCR System: 

Fig 1: Coolant Line Bracket for Vehicles with SCR System

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-- Remove bolts -1- on coolant lines bracket.

-- Remove the connector -4- from the bracket, disconnect it, and free up the wire.

Fig 2: Identifying Clamps And Reducing Agent Line

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-- Loosen the hose clamp -1-.

-- Free up the coolant line -3- and the selective catalytic reduction lines -2-.

-- Remove the Reducing Agent Injector -N474- and lay it to the right side.

Continuation for All Vehicles: 

Fig 3: Identifying Heat Shield Boot And Connectors

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-- Open the heat shield boot -1-.

-- Disconnect the connector -3- and free up the wire.

-- Remove the bolt -2-.

Additional steps for vehicles with two differential pressure lines: 

-- Disconnect the connector -5- for the Exhaust Gas Temperature Sensor 1 -G235-.

-- Disconnect the vacuum hose -arrow- and free it up.

Fig 4: Identifying Vacuum Hose

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-- Remove the bolt -3-.

Fig 5: Identifying Clamps, Pipes And Bolt

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-- Loosen the clamps -1- and remove the hoses.

-- Free up pipes -2-.

Vehicles with One Differential Pressure Line: 

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-- Remove the bolt -arrow-.

-- Open the hose clamp -A-, remove the hose and unclip the pipes -B-.

Continuation for All Vehicles: 

-- Lay the bracket with the differential pressure sensor(s) to the rear.

-- Release the retainers -arrows- and remove the upper toothed belt guard -1-.

Fig 6: Identifying Upper Toothed Belt Guard

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