AUDI A4 1997 B5 / 1.G Quattro Fuel Syst

20-63


6 -
Ground connection
Location Fig. 1
, Page 20
-58
- Ensure tight fit of metal ring on fuel filler
neck
- Check chamfer on protective plate (item
7 ).
- After installing, check continuity between
metal ring on fuel filler neck and chassis
Ground point. Specified value: approx. 0

7 -
Protective plate
For fuel filler neckWith Ground connection
- Before threading in mounting screw (item
10 Page 20
-55
) check for tight fit on
screw eye of Ground connection
8 -
Sealing ring
Installed position: Sealing lip points to fuel
filler neck
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20-64


9 -
O-rings
Different sizes
-Replace
10 -
Bleed valve Removing, installing, checking Fig. 1
,
Page 20
-65

11 -
Bleed line
To EVAP canister
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20-65


Requirement Fig. 1 Bleed valve removing, installing, checking
Fuel tank removed.
- To remove, unclip valve from side of filler neck.
- Close off filler neck by hand -3-.
- Blow into filler neck -1- Button -2- pressed in direction of arrow: Flow Button -2- in OFF direction: NO Flow.
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20-66

Fuel tank, draining


Vehicles with all 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 .

Required equipment

FM 3000 fuel storage cart (or equivalent)
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20-67

CAUTION!

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

- Disconnect Battery Ground strap.
Ensure that ignition is switched OFF.
- Remove cover from fuel filler neck.
- Empty as much fuel as possible through the filler neck.
- Remove connector flange cover under luggage compartment trim.
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20-68

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-, supply line -3- and remove 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.
- Pump remaining fuel through the flange opening.
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20-69

Fuel tank assembly, removing and
installing


Vehicles with all 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 .

Required special tools, testing equipment
and auxiliary equipment

VAG1359/2 Universal holder
VAG1383 A Engine and transmission jack
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20-70

Removing

CAUTION!

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

WARNING!
Empty the fuel tank before removing it! If it is not empty, the weight
and sloshing fuel could lead to injury, component damage or
possible fuel spillage. - Disconnect Battery Ground strap.
First ensure that ignition is switched OFF.
- Open fuel tank cover briefly and close again.
- If necessary, drain fuel tank using fuel cart Page 20
-66
.
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20-71

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

- Remove rear axle.

Repair Manual, Suspension, Wheels,
Steering, Repair Group 42


- Remove connector flange cover under luggage
compartment trim.

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

-
Remove screw -1- for fuel filler neck, Ground connection -2- and
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protective plate -3- under the wheel house shell.
Pa
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)
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