A8L Quattro Sedan W12-6.0L (BSB) (2005)
Fuel Rail: Testing and Inspection
Fuel Injectors, Checking for Leaks, Injection Quantity and Spray Pattern
Special tools, testers and auxiliary items required
‹› Fuel injection quantity tester (V.A.G 1602)
Conditions
‹› Fuel pressure OK.
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Remove intake manifold.=> [ Intake Manifold Assembly Overview ] See: Engine, Cooling and Exhaust/Engine/Intake Manifold/Service and
Repair/Intake Manifold Assembly Overview
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Separate electrical connections at fuel injectors by pressing release tabs down and then inward - arrow -.
‹› When the connection is released, the release tab remains in the lower position. When reconnecting the connector, the release tab engages upward
again.
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Disconnect fuel supply line - 1 - and fuel return line - 2 - from fuel rail. Use a clean rag to catch exiting fuel.