fuel cap AUDI A4 1997 B5 / 1.G Fuel Supply System Front Wheel Drive 1.8T And 2.8 Workshop Manual

20-8


6 -
Mounting screw
25 NmTo connect fuel-filler neck and Ground
(item 13 Page 20
-8 )
7 -
Washer
8 -
Overflow hose
9 -
Rubber cap
10 -
Locking ring
11 -
Sealing ring
- Replace if damaged.
12 -
Cover
13 -
Ground connection
Location Fig. 1
, Page 20
-10
- Connect wiring terminal with mounting
screw (item 6 ) Page 20
-8 .
- After installing, check continuity between
metal ring on fuel filler neck and bare
chassis Ground point. spec: approx. 0
Pa
ge 3 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

20-18

Fuel tank, draining


Vehicles with front wheel drive and 1.8 ltr.
turbo or 2.8 ltr. engine

WARNING!

Fire hazard! Do NOT have anything in the
area that can ignite gasoline!
Observe Safety measures Page 20
-1 .
Observe Rules of cleanliness Page 20
-4 .

Auxiliary equipment required

FM 3000 fuel cart (or equivalent)

CAUTION!

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

- Disconnect Battery Ground strap with ignition switched OFF.
- Remove filler cap from fuel filler neck.
- Empty fuel tank as completely as possible through the filler neck.
Pa
ge 13 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

20-20

- If necessary, drain fuel tank using fuel cart
Page 20
-18
.

Note:
For handling reasons, fuel tank must be empty
before removing.

- Remove connector flange cover under luggage
compartment trim.

Note:
Return line -2- and supply line -3- stay connected. - Unlatch and disconnect 4-pin harness connector -1-.
- Clean area around fuel filler neck.
- With filler cap removed, pry out clamping ring on rubber seal (around
filler neck).
- Push rubber seal toward inside.
- Remove right rear wheel.
- Remove right rear wheel house liner.

- Remove screw -2- for fuel filler neck under wheel house liner.
Pa
ge 15 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

20-37

Test sequence

- Open fuse box cover on left side of instrument
panel.

- Remove fuse 28 from fuse holder (left row, 5Th
fuse from top).

- Connect remote control to right side of fuse 28 holder using adaptor
cable -arrow-.
- Connect tester lead to Battery +.
- Remove fuel filler cap.
- Remove engine cover.
Pa
ge 33 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

20-41

- Open fuel-filler cap briefly and close again.

- If necessary, drain fuel tank using fuel cart
Page 20
-18
.

Note:

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

- Remove connector flange cover under luggage
compartment trim.

WARNING!

Fuel system is under pressure! Before
opening, place clean cloths around the
connections to be opened. Carefully loosen
the connections to relieve pressure.

- Mark return line -2- and supply line -3- and pull off of cover flange.
- Unlatch and disconnect 4-pin harness connector -1-.
Pa
ge 37 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