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| Always read rules for cleanliness and instructions for working on fuel system → Chapter. |
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| Follow these instructions and rules for cleanliness before starting work and while working on the fuel system. |
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| If components of the fuel system between the tank and the high-pressure fuel pump are removed or renewed, the fuel system must be filled to be bled → Chapter. (It is important not to allow the high-pressure pump to run while still empty.) |
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| To prevent the high-pressure fuel pump from running while it is empty and to ensure that the engine starts quickly after parts have been renewed, it is important to observe the following: |
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| If fuel system components between fuel tank and fuel high-pressure pump are removed or replaced. |
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| If the fuel pump G6, a fuel line or the fuel filter are removed or renewed. |
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| If the fuel high-pressure pump is removed or replaced. |
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| Connecting the central diagnosis -VAS 505xx- |
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| Perform the function „Filling/bleeding high-pressure pump/fuel system“ in „Guided functions“ → Chapter. |
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