2000 AUDI A4 fuel pump

20-39

All vehicles

- Operate remote control for 15 seconds.

Press remote button continuously

*) Minimum supply quantity cm
3/15 s
**)
Voltage on fuel pump with engine off and pump running (approx. 2
Volts less than Battery Voltage). - Compare fuel quantity pumped to specified value.
Pa
ge 35 of 49 Fuel su
pp
ly system, servicin
g (vehicles with front wheel drive and 1.8 ltr. turbo or 2.8 ltr. 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.GE04.20.2

20-40

Fuel supply unit, removing and
installing


Vehicles with front wheel drive and 1.8 ltr.
turbo or 2.8 ltr. engine
Observe Safety measures Page 20
-1 .
Observe Rules of cleanliness Page 20
-4 .

Required special tools, testing equipment
and auxiliary equipment

3217 Union nut wrench
3307 fuel pump wrench
VAG1275 Hose clamp pliers

Removing

CAUTION!

Obtain the radio Anti-theft code from the
customer before disconnecting the Battery
Ground strap.

- Disconnect Battery Ground strap with ignition switched OFF.
Pa
ge 36 of 49 Fuel su
pp
ly system, servicin
g (vehicles with front wheel drive and 1.8 ltr. turbo or 2.8 ltr. 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.GE04.20.2

20-42


- Unscrew union nut with 3217 wrench.
- Remove cover flange and sealing ring from fuel tank opening.
- Disconnect sender for fuel gauge -G harness connector on inside of
cover flange.
- Disconnect return line on inside of cover flange by pressing unlatch
buttons.

Note:
If the supply unit is replaced, empty the old supply unit of any remaining
fuel before properly disposing of it. - Insert 3307 fuel pump wrench through fuel tank opening and place on
inner section of surge housing.
-
Using wrench 3307, turn surge housing inner section approx. 15 to
the left up to the stop and take fuel pump out complete with inner
section of housing.
Pa
ge 38 of 49 Fuel su
pp
ly system, servicin
g (vehicles with front wheel drive and 1.8 ltr. turbo or 2.8 ltr. 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.GE04.20.2

20-43

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

- Pre-assemble parts Page 20
-27
.

Note:
Install a toothed washer beneath each of the nuts.
Angle position cover flange to inner section of surge housing 10
- Press together clamps for supply line (between pump and cover flange)
using VAG1275 pliers.
- Attach wiring to fuel pump
M4: 1.5 Nm M5: 2 Nm
- Attach wiring using fuel-resistant cable ties.
Pa
ge 39 of 49 Fuel su
pp
ly system, servicin
g (vehicles with front wheel drive and 1.8 ltr. turbo or 2.8 ltr. 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.GE04.20.2

20-44

Installing
Installation is performed in the reverse order of
the removal procedure, during installation note
the following:

CAUTION!

Always refer to the latest parts catalog to
ensure that you use original equipment fuel
hose clamps.

- Install surge housing inner section, supply hose
and cover flange in fuel tank.

Note:
For clarity, the inner and outer surge housing sections are shown without
the tank. - Place inner section of surge housing into outer section of surge
housing (in tank) in such a way that notch 1 on inner section of surge
housing matches mark 2 on outer section of surge housing.
The inner section of the surge housing can be pressed downward
until it is clearly heard to engage.
- Put fuel pump wrench 3307 in place and turn surge housing inner
section with pump to the right approx. 15 to the stop. The notch -1-
will then be in front of the marking -3- (bayonet closure).
Pa
ge 40 of 49 Fuel su
pp
ly system, servicin
g (vehicles with front wheel drive and 1.8 ltr. turbo or 2.8 ltr. 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.GE04.20.2