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| Connect the measurement adapter/ DSO (5 poles) -VAS 5565- to the terminal connector on the fuel supply unit. |
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| Connect the clamp probe -A- to the red cable marked „clamp probe“ of the measurement adapter / DSO (5 poles) -VAS 5565-. |
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| Start engine and run at idling speed. |
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| Measure the power consumption of the fuel pump: |
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| Specification: 9 Amps maximum |
Note | If there is a temporary fuel system fault, the check can also be carried out during a test drive, with the help of a second person. |
| If the current draw is exceeded: |
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| Fuel pump is defective, renew fuel delivery unit → Chapter. |
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