Current Draw, Checking

Fuel Pump, Checking

Special tools, testers and auxiliary items required

• Pressure Tester (VAS 6550)

• Remote Control (V.A.G 1348/3A)

• Test Instrument Adapter/DSO (5-pin) (VAS 5565)

• Hand Held Multi-Meter (V.A.G 1526D) with Current Clamp (V.A.G 1526B/2)

• Wrench (T10202)

• Torque Wrench (40-200 Nm) (V.A.G 1332)

• Measuring Container, 2 liter

• Vehicle Diagnostic Tester

Current Draw, Checking

- Remove the rear seat bench.

- Remove the cover from the fuel delivery unit.





- First pull on the connector - arrow - without pressing the retainer to make sure it connected securely. If the connector was not connected correctly, it could cause a fault.





- Disconnect the connector.

- Check the contacts on the connector and the fuel delivery unit for damage.

- Connect the (VAS 5565) to the connector on the cover and on the fuel delivery unit.





- Connect the current clamp - A - to the red wire -with the word "current clamp"- on the (VAS 5565).

- Start the engine and run at idle speed.

- Measure current draw of fuel pump.

• Specified value: maximum 9 amps

• The fuel pump starting current may be higher than the specified value briefly when starting the engine.

• If the malfunction in the fuel system only occurs sporadically, the test can also be performed during a road test. A second person is needed to do this.

If the current draw is exceeded:

- Replace the fuel delivery unit if the fuel pump is faulty. Refer to => [ Fuel Delivery Unit ] Service and Repair.