Volkswagen Workshop Manuals
Passat Sedan V6-3.6L (BLV) (2008)
Powertrain Management > Fuel Delivery and Air Induction > Fuel Pressure > System Information > System Diagnosis > Delivery Rate, Checking > Page 3441
Fuel Pressure: Testing and Inspection
Fuel Pressure Test
Special tools, testers and auxiliary items required
‹› fuel line adapter set (V.A.G. 1318/17A). These tools may be substituted with an equivalent aftermarket tool and are also available for rental or
purchase through Volkswagen.
‹› In line Fuel pressure gauge with shutoff valve. (high pressure).
‹› Battery voltage 12.5 V
‹› Function and voltage supply for the Fuel Pump is OK.
‹› Fuel tank at least 1/4 filled.
‹› Ignition switched off.
Observe safety precautions. Refer to => [ Safety Precautions ] See: Computers and Control Systems/Service Precautions/Safety Precautions
Observe Clean Working Conditions. Refer to => [ Clean Working Conditions ] See: Computers and Control Systems/Service Precautions/Clean
Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Computers and Control Systems/Testing
Remove high pressure in fuel system.
Place a cloth around connection and slowly loosen union nut - arrow - to reduce fuel pressure.
Then tighten threaded connection again.
Connect a pressure gauge with the appropriate adapter, as shown.
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