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| Voltage tester -V.A.G 1527 B- |
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| Adapter set -V.A.G 1594 C- |
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| The battery voltage must be at least 11.5 V. |
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| All electrical consumers, e.g. lights and rear window heating, must be switched off. |
Checking function and voltage supply |
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| Remove cover from fuel delivery unit. |
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| Switch on ignition. The fuel pump must be heard to run for about 2 seconds. |
If the fuel pump does not start |
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| Pull 5-pin connector off fuel delivery unit flange. |
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