ignition AUDI A4 1998 B5 / 1.G Fuel Supply System Biturbo 2.8 Workshop Manual

20-110


Repair Manual, Fuel Injection & Ignition,Repair
Group 24 10 -
Fuel Pump (FP)
With fuel screenCan only be replaced with fuel pump flangeRemoving and installing Page 20
-118
Fuel pump, electrical check Page 20
-
111

Pressure test:
11 -
Fuel accumulator housing, lower part
Part of fuel tankCannot be replaced separately
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20-112

Test conditions:

Battery voltage at least 12 V
Fuse 28 OK

Test sequence
Relay 6 in central electric OK Fuel filter OK Ignition switched off.
- Open cover for fuse panel on left side of instrument panel.
- Remove fuse 28 from fuse panel (left row, fifth large fuse from the top).

- Connect remote switch VAG1348/3A with adapter wire VAG1348/3-2 to
right terminal of fuse socket 28 -arrow-.
- Connect alligator clip to vehicle battery (+).
- Press remote switch button.
Fuel pump must be heard to run.
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20-116

Fuel pump delivery volume, checking


Vehicles with 2.7 ltr. turbo engine

Special tools needed:
Test conditions:
Test sequence
Remote switch VAG1348/3A with adapter wire VAG1348/3-2Measuring cupBattery voltage at least 12 V Fuel filter OK Ignition switched off.
- Open fuse panel cover at left side of instrument panel.
- Remove fuse 28 from fuse panel (left row, fifth. large fuse from the
top).

- Connect remote switch VAG1348/3A with adapter wire VAG1348/3-2 to
right terminal of fuse socket 28 -arrow-.
Pa
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gine
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Removing

- Obtain radio code for radio with anti-theft
coding.

- Switch off ignition and disconnect battery ground
(GND) cable.

- Briefly open fuel filler cap and then close it
again.

- Empty fuel tank if necessary using fuel
evacuator unit VAG1433 A.


Front wheel drive Page 20
-18
.


All wheel drive Page 20
-66
.

Note:

The fuel tank may not be filled more than
1/3.

- Remove luggage compartment liner.

- Remove cover for fuel pump flange.

WARNING!
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20-124

- Move power windows up to stop.

- Then operate power window closing switches
again for at least 1 second to activate the
automatic up-and-down run.

- Adjust time clock.

- Activate readiness code:

Repair Manual, Fuel Injection & Ignition,
Repair Group 01
Pa
ge 20 of 25 Fuel su
pp
ly system, servicin
g (vehicles with 2.7 ltr. turbo en
gine
)
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.4