A6 Quattro Sedan V6-3.2L (BKH) (2005)
1. Intake manifold runner position sensor 2 (G512)
2. Fuel pressure sensor (G247)
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Remove bolts and nuts - arrows - and remove intake manifold lower with fuel rail.
‹› Plug intake ports of the cylinder head with clean rags.
Installing
Installation is in reverse order of removal, note the following:
‹› Replace gaskets and O-rings.
‹› Lightly lubricate fuel injector O-rings with clean engine oil.
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Connect hand vacuum pump (VAS 6213) to intake manifold runner control vacuum actuator, as shown in illustration.
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Generate vacuum using hand vacuum pump.
‹› The intake flaps are opened.
‹› If the intake flaps are not opened, they could have seized when installing the intake manifold lower to the cylinder head.
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Install intake manifold lower and press fuel rail evenly onto fuel injectors.
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Fasten bolts - arrows - for intake manifold lower in a diagonal sequence and in stages.