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

20-93

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 disconnect from cover
flange.
- Unlatch and disconnect 4-pin harness connector -1-.

- Unscrew union nut using 3217 wrench .
- Remove cover flange and sealing ring from fuel tank opening.
- Disconnect fuel level display harness connector on inside of flange
cover.
- Disconnect return line on inside of cover flange (press unlatching
buttons).
Pa
ge 42 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
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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

20-102

- Carefully pull cover flange out and put to the
side with supply line connected.

- Disconnect harness connector for fuel level
display on inside of cover flange.

Note: - Pull sensor out of surge housing in fuel tank while simultaneously
pressing latching tab -arrow-.
Illustration shows sensor and surge housing for vehicles with Front-
Wheel Drive. For clarity, the surge housing illustration is shown without tank.
Pa
ge 51 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