Touareg V8-4.2L (AXQ) (2006)
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Vehicle Diagnostic, Testing and Information System VAS 5051
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Multimeter V.A.G 1526/A, Fluke 83 (or equivalent)
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Connector test set V.A.G 1594/C
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Wiring diagram
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Commercially available measuring glass (0 ml to 25 ml)
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Fuel hose, length approx. 300 mm
Test prerequisites:
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Metering pump resistance 5.4 ohms
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Voltage at metering pump, 11 to 13 Volt.
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No Diagnostic Trouble Code (DTC) stored in memory
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Fuel lines are not damaged or leaking.
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Ambient temperature approx. 20 degrees C
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Fuel tank is filled sufficiently (fuel gauge on dash panel is not in red area).
CAUTION:
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There is a danger of leaking fuel.
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Fuel system is under pressure.
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Before opening the system place a cloth around the connection. Then release pressure by carefully loosening the connection.
Checking:
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Remove fuel line from pressure connection of Metering Pump V54 and fit new fuel hose (length approx. 300 mm) from pressure connection to
measuring glass (capacity approx. 25 ml).
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Hold measuring glass at same height as auxiliary engine coolant heater.