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| The fuel pump is activated when the ignition is switched on and by the door contact switch of the driver door. Before opening the fuel system and for reasons of safety, if the battery is not disconnected, the connector -arrow- must be disconnected from the fuel delivery unit. |
WARNING | Please observe the following when undertaking all assembly work, particularly in the engine compartment, due to its cramped construction. |
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| Lay lines of all kinds (e.g. for fuel, hydraulic fluid, cooling fluid and refrigerent, brake fluid, vacuum) and electrical lines in such a way that the original line guide is re-established. |
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| Ensure that there is adequate free access to all moving or hot components. |
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| When removing and installing the fuel gauge sender from a full or partly filled fuel tank, pay attention to the following: |
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| The extraction hose of an exhaust extraction system which is switched on, must be positioned close to the assembly opening of the fuel tank in order to extract the released fuel vapours, even before the work is commenced. If no exhaust extraction system is available, a radial fan (motor not in air flow of fan) with a delivery volume of more than 15 m3/h must be used. |
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| Avoid skin contact with fuel! Wear fuel-resistant gloves! |
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