AUDI A4 1999 B5 / 1.G 01A Transmission Final Drive Flange Housing Remove Workshop Manual

39-85


Drive flange housing, removing
and installing Assembly overview

1 -
Bolt
40 Nm (30 ft lb)
2 -
Front crossmember
3 -
Bolt 40 Nm (30 ft lb)
4 -
Transmission support
5 -
Drive flange housing
6 -
Final drive housing
7 -
O-ring
8 -
Bolt 35 Nm (26 ft lb)
9 -
Bolt 23 Nm (17 ft lb)
10 -
Mounting bracket For exhaust system
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Removing

Rear differential installed

Special tools and equipment
VW771 with 771/15 multi-purpose tool
VAG1306 drip tray
VAG1359/2 universal mounting
VAG1383A engine-/transmission hoist

- Place VAG1306 drip tray underneath
transmission and drain fluid.

- Remove rear section of exhaust system located
rearward of exhaust pipe clamp(s).
Repair Manual, Engine Mechanical, Repair
Group 26
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39-87

- Remove heat shield above driveshaft.

- Remove heat shield next to rear differential.

- Check for factory color marking on driveshaft. If not, mark position of
driveshaft flange -A- to drive flange in rear differential -B- with color
marking.
- Remove mounting bolts from driveshaft flange.

Note:
If driveshaft cannot be pushed upward past flange, tie up driveshaft after
lowering the differential. When lowering driveshaft, protect it from
dropping and note the permissible bend angle of driveshaft Notes,
Page 39
-68
. - Tie driveshaft to mount for parking brake cable using wire.
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- Support final drive using VAG1383A.

- Remove bolts (arrows) from front crossmember for final drive.
- Remove crossmember front.
- Lower final drive approx. 10 cm (4 in.).

Note:
The 4th bolt is not visible in the illustration. - Remove 4 bolts for drive flange housing -1-, -2- and -3-.
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39-89


Installing
Installation is the reverse of removal, note the following:
Notes: - Pull off drive flange together with housing.
The threaded bores in the drive flanges of the transmission and the
final drive should be cleaned of all locking compound residue after
driveshaft has been removed. Otherwise there is a risk of seizing the
bolt when tightening and break off at next disassembly. Clean by using a thread tap.Replace seals between driveshaft and drive flange (Remove
protective film and bond seal to drive flange. Adhesive bond surface
must be free of grease. Always replace self-locking driveshaft bolts.
- If driveshaft has factory color marking, determine radial deviation on
flange/driveshaft Page 39
-77
and align color marking on driveshaft
to new color marking on drive flange.
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39-90

- Align exhaust system free of stress.
Repair Manual, Engine Mechanical, Repair
Group 26
- Top off transmission oil for final drive and check
oil level Page 39
-84
.

Tightening torques

Component
Tightening
torque
Drive flange housing to final drive 35 Nm (26 ft
lb)
Driveshaft to final drive 55 Nm (41 ft
lb)
Front crossmember for final drive
to body 40 Nm (30 ft
lb)
Front crossmember for final drive
with mounting bracket for exhaust
system to body 23 Nm (17 ft
lb)
Oil filler plug 35 Nm (26 ft
lb)
Nuts for clamping sleeve 40 Nm (30 ft
lb)
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39-91


Drive flange housing

Note:
Drive flange housing, removing and installing
Page 39
-85
.
1 -
Drive flange
Disassembling Page 39
-94
When installing, circlip item -7- must be
simultaneously installed through hole in
housing Page 39
-99

2 -
Seal
Prying out Page 39
-96
Driving in Page 39
-98
3 -
Circlip
Removing Page 39
-96
4 -
Grooved ball bearing for drive flange
Removing Page 39
-97
Assembling Page 39
-98
5 -
Sleeve
Removing Page 39
-94
Pressing on Page 39
-99
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6 -
Washer
Press out only if damagedInstalling Page 39
-97
7 -
Circlip
Expand to remove drive flange Page 39
-
95

8 -
O-ring
Always replace
9 -
Bolt 35 Nm (26 ft lb)For mounting drive flange housing to final
drive housing
10 -
Drive flange housing
11 -
Bolt 40 Nm (30 ft lb)For fastening transmission support to drive
flange housing
12 -
Transmission support
13 -
Circlip Removing Page 39
-94
14 -
Cap
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Removing Page 39
-94
15 -
O-ring
Always replace
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39-93

Drive flange housing, disassembling and
assembling

Special tools and equipment

VW402 thrust plate
VW409 punch
VW412 thrust disc
VW433 thrust pad
VW771 slide hammer-complete set with
VW771/15 threaded piece
2051 arbor
2062 driver
2078 tappet tensioner
Kukko 21/5 extractor

Note:
Drive flange housing removing and installing
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