ignition AUDI A4 1999 B5 / 1.G Fuel Supply System Biturbo 2.8 Workshop Manual
Page 4 of 25
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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)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.4
Page 6 of 25
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.
Pa
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g (vehicles with 2.7 ltr. turbo en
gine
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11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.4
Page 10 of 25
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
ge 10 of 25 Fuel su
pp
ly system, servicin
g (vehicles with 2.7 ltr. turbo en
gine
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.4
Page 14 of 25
20-119
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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ge 14 of 25 Fuel su
pp
ly system, servicin
g (vehicles with 2.7 ltr. turbo en
gine
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.4
Page 20 of 25
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
)
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.4