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Fuel filter unit (672)

Fuel filter unit (672)

Warning

Removal of the fuel filter involves partial dismantling of the car's fuel system. The following points must therefore be observed in connection with this work:

• Make sure a class BE fire extinguisher is close to hand! Consider the risk of sparking, e.g. when breaking circuits, short-circuits etc.

• Absolutely No Smoking!

• Ensure that there is a good exchange of air. If approved ventilation for the extraction of fuel fumes is available, this should be used.

• Wear protective gloves! Prolonged exposure of the hands to fuel can cause irritation to the skin.

• Wear protective goggles.


To remove

Important

Be very thorough in terms of cleanliness when working in the fuel system. Malfunctions can also occur due to very small dirt particles. Prevent dirt from entering the fuel system by cleaning the hoses and plugging the pipes and lines upon removal using 93 161 370 Plug set. Store the components so that contaminants cannot enter.



1. Undo the fuel line connections from the fuel filter. Use 83 95 261 Fuel line tool . Catch any fuel that escapes.


2. Unplug the preheater connector (upper).

3. Unplug the water level sensor connector (under the filter).


4. RHD : Remove the lock pin holding the filter housing to the crash box.

5. Lift up the filter housing.

6. Check the filter holder for impurities and other foreign matter, and if necessary clean it.


To fit


1. Fit the filter holder into the car. Check that it is correctly seated in its mounting.


2. RHD : Fit the lock pin holding the filter housing to the crash box.

3. Plug in the water level sensor (under the filter).

4. Plug in the preheater connector (upper).


5. Connect the fuel lines.

6. Connect an exhaust extractor hose and start the engine to check everything runs correctly.

Connect the diagnostic tool and erase any diagnostic trouble codes.