RS 4 Quattro Sedan V8-4.2L (BNS) (2007)
Fuel Pressure: Testing and Inspection
Fuel Pump (FP) Delivery Quantity, Checking
Fuel Pump (FP) Delivery Quantity, Checking
Special tools, testers and auxiliary items required
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Hand held remote control (jumper).
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Electrical connector test lead set.
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Fuel pressure test set (high pressure).
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Measuring container, fuel-resistant.
Test conditions
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Battery voltage min. 12.5 V.
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Fuel filter OK.
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Fuse S228 (position 28) OK.
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Fuel Pump (FP) Control Module J538 OK.
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Fuel tank at least 1 / 4 filled.
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Ignition switched off.
Test sequence
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Remove the rear seat bench.
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Remove the screws - arrows - and the right locking flange.
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Remove the wiring harness and the electrical harness connector - arrow - from locking flange opening and position aside.
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Disconnect fuel delivery unit electrical harness connector - arrow -.