1996 AUDI A4 battery

20-112

Test conditions:

Battery voltage at least 12 V
Fuse 28 OK

Test sequence
Relay 6 in central electric OK Fuel filter OK Ignition switched off.
- Open cover for fuse panel on left side of instrument panel.
- Remove fuse 28 from fuse panel (left row, fifth large fuse from the top).

- Connect remote switch VAG1348/3A with adapter wire VAG1348/3-2 to
right terminal of fuse socket 28 -arrow-.
- Connect alligator clip to vehicle battery (+).
- Press remote switch button.
Fuel pump must be heard to run.
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20-113

Note:
The fuel pump runs very quietly. Be sure to keep
outside noise low when testing the fuel pump.
If you cannot hear the fuel pump run:

- Remove carpet liner in luggage compartment.

- Unscrew cover fuel pump flange.

- Unclip 4-pin connector and disconnect connector.

- Switch multimeter Fluke 83 to DC voltage range 20 V and using test
wire from VAG1594 A, connect to terminal 1 (green/yellow) and 4
(brown) of connector.
- Press remote switch continuously and read voltage.
Specified value: Approx. battery voltage
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20-116

Fuel pump delivery volume, checking


Vehicles with 2.7 ltr. turbo engine

Special tools needed:
Test conditions:
Test sequence
Remote switch VAG1348/3A with adapter wire VAG1348/3-2Measuring cupBattery voltage at least 12 V Fuel filter OK Ignition switched off.
- Open fuse panel cover at left side of instrument panel.
- Remove fuse 28 from fuse panel (left row, fifth. large fuse from the
top).

- Connect remote switch VAG1348/3A with adapter wire VAG1348/3-2 to
right terminal of fuse socket 28 -arrow-.
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20-117

- Connect alligator clip to battery (+) .

- Remove fuel filler cap

- Remove engine cover

WARNING!

Fire hazard! Remove everything from the area
that could ignite fuel or fuel vapor. fuel
system is under pressure. Cover connection
with rag and carefully release pressure by
slowly opening the connection.

- Disconnect fuel return line from line connection at fuel distributor.
- Connect test hose -arrow- at fuel distributor line and place other hose
end into measuring cup.
- Operate remote switch for 15 seconds (press button continuously).

*) Volume of fuel delivered in cm
3/15 s - Compare collected fuel with specified value.
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**)
Voltage at fuel pump with engine not running but pump running
(approx. 2 Volt less than battery voltage).
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20-119

Removing

- Obtain radio code for radio with anti-theft
coding.

- Switch off ignition and disconnect battery ground
(GND) cable.

- Briefly open fuel filler cap and then close it
again.

- Empty fuel tank if necessary using fuel
evacuator unit VAG1433 A.


Front wheel drive Page 20
-18
.


All wheel drive Page 20
-66
.

Note:

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

- Remove luggage compartment liner.

- Remove cover for fuel pump flange.

WARNING!
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20-123

- Wrap wire for fuel gauge sensor around fuel
supply line (inside fuel tank) and connect to
flange.

- Seal for flange must be dry when inserted in
opening of fuel tank.

Note:
-Arrow 3- applies for vehicles with front wheel drive. - Insert flange in fuel tank.
Installation position for vehicles with all-wheel drive: -arrow 1- must be
opposite -arrow 2-.

Note:
Check that all fuel line and hose connections are securely seated.
Radio operating manual - Tighten threaded cap nut to 60 Nm with wrench 3217.
- Connect wiring and connector.
- After reconnecting the battery enter radio anti-theft code.
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20-129

Installing
Installation is in reverse order of removal, but do
the following:

- Install sender for fuel gauge in guides of outer
fuel accumulator housing and press down until
locked in place.

Fuel pump flange, installing Page 20
-121
.
Observe note regarding disconnecting battery.
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11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.4