wiring AUDI A4 1998 B5 / 1.G Quattro Fuel Syst

20-80


9 -
Union nut
60 Nm
10 -
Wiring To fuel pump
- Attach with fuel resistant cable ties (item
11 )
11 -
Supply line Fuel pump/surge housingLocation Page 20
-95
12 -
Nut M4
1.5 Nm
- Install toothed washer beneath.
13 -
Nut M5 2 Nm
- Install toothed washer beneath.
Pa
ge 29 of 55 Fuel su
pp
ly system, servicin
g (vehicles with all wheel drive and 1.8 ltr. turbo or 2.8 ltr. en
gine
)
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.3

20-86


- Unscrew union nut using wrench 3217.
- Take cover flange and sealing ring out of the fuel tank opening.

If wiring OK - Check wiring between flange and fuel pump for continuity.
- Fuel pump faulty, replace Page 20
-91
.
- Fuel supply unit, installing Page 20
-96
.
Pa
ge 35 of 55 Fuel su
pp
ly system, servicin
g (vehicles with all wheel drive and 1.8 ltr. turbo or 2.8 ltr. en
gine
)
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.3

20-95

Cover flange and surge housing inner
section, pre-assembling
If cover flange and supply unit were separated

- Pre-assemble parts Page 20
-78
.

Note:
Install a toothed washer beneath each nut.
Angle position, cover flange to inner section of surge housing: 10
- Press together clamps for supply line (between pump and cover flange)
with VAG1275 pliers.
- Attach wiring to fuel pump.
M4: 1.5 Nm M5: 2 Nm
- Attach wiring with fuel-resistant cable ties.
Pa
ge 44 of 55 Fuel su
pp
ly system, servicin
g (vehicles with all wheel drive and 1.8 ltr. turbo or 2.8 ltr. en
gine
)
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.3

20-98


Note:
Ensure that fuel hoses fit tightly.
Radio operating instructions - Tighten union nut with 3217 wrench.
60 Nm
- Connect wiring and harness connector.
- Connect Battery Ground strap with ignition switched OFF.
- After connecting Battery, input radio anti-theft code
- Run door windows up to stop using electric window lifters.
- Operate all window lifters again for at least 1 second in "closed"
position to activate automatic up/down.
- Set the clock.
Pa
ge 47 of 55 Fuel su
pp
ly system, servicin
g (vehicles with all wheel drive and 1.8 ltr. turbo or 2.8 ltr. en
gine
)
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.3

20-100


Note: - Measure resistance at terminals -2- and -3- on cover flange
Sensor
Tank full
Tank empty
Sender for fuel gauge -G
40
280
If fuel level falls between "Tank full" and "Tank empty", resistance
value between the two specified values must be displayed. If 0 or is displayed there is an open or closed circuit in tank
wiring. To check "Tank full" or "Tank empty" resistance values; remove
sender for fuel gauge -G Page 20
-101
and swing sensor float to top
or bottom stop.
Pa
ge 49 of 55 Fuel su
pp
ly system, servicin
g (vehicles with all wheel drive and 1.8 ltr. turbo or 2.8 ltr. en
gine
)
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.3