Current Draw, Checking
Test Prerequisite
- Voltage supply of Fuel Pump (FP) OK → Right Fuel Delivery Unit with Transfer Fuel Pump, Electrical Testing .
- Up to model year XXX remove Fuse 10 on fuse holder SF10, as of model year 2004 remove Fuse 2 on fuse holder SF2 (in relay- and fuse holder, in luggage compartment, right side)
- Connect remote control VAG1348/3A with adapter cable VAG1348/3-2 to right terminal of socket for Fuse 10 on fuse holder SF10-/Fuse 2 on fuse holder SF2 (in relay- and fuse holder, in luggage compartment, right side).
- Connect alligator clip to vehicle battery B+.
- Connect VAS5051 tester with VAS5051/9 inductive pick-up to wire of remote control.
- Press switch on remote control.
- Measure Fuel Pump (FP) current draw.
Specified value: approx. 8 amps
If specified value is not obtained:
NOTE:
- At a displayed current draw of 4 amps, Fuel Pump (FP) runs dry.
| Indicated | Malfunction cause | Corrective action |
|---|---|---|
| approx. 4 A | Fuel tank empty | Refuel |
| Housing for fuel delivery unit leaking | Fuel delivery unit, replacing → Right Fuel Delivery Unit with Transfer Fuel Pump, Removing and Installing | |
| 0 A | Transfer Fuel Pump (FP) G23 malfunctioning | Fuel delivery unit, replacing → Right Fuel Delivery Unit with Transfer Fuel Pump, Removing and Installing |