Touareg V6-3.2L (BMX) (2005)
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Operate remote control at short intervals, until a pressure of approximately 4 bar has built up.
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Watch pressure drop on gauge. After 10 minutes the pressure must not drop below a 3.0 bar decrease.
If the pressure drops:
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Left fuel pump is faulty. Replace left fuel delivery unit --> [ Fuel Delivery Unit, Fuel Level Sensor and Suction Jet Pumps ] See: Powertrain
Management/Fuel Delivery and Air Induction/Fuel Pump/Service and Repair.
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Open lever of pressure tester and let fuel flow back to fuel tank through hose (V.A.G 1318/13).
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Remove pressure gauge (V.A.G 1318) with adapters.