Oil seal for drive flange, replacing

WARNING: This page is about a different car, the 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Special Tools

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(Transmission installed)

Pay attention to general repair instructions. Refer to General repair instructions .

Special tools and equipment

VW 295 Mandrel
VW 681 Extractor lever
2062 Insertion mandrel
T10037 Puller

VAG 1331 Torque wrench
VAG 1332 Torque wrench

Special tools, testers and other items required

Fig 2: Identifying Drip Tray V.A.G 1306

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VAG 1306 Drip tray

NOTE:

Use the same procedure for removing both left and right oil seals.
It is not necessary to remove the exhaust system.

Removing

Turn steering wheel to left lock.

Fig 3: Detaching Heat Shields And Right-Hand Axle Shaft

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Remove cover plates above drive axle (arrows 1 + 2).
Disconnect drive axle from transmission flange:
Tie drive axle up as far out of the way as possible. Take care not to damage paintwork on drive axle.
Place drip tray VAG 1306 under transmission.

Replacing left oil seal

Remove left drive flange

Fig 4: Removing Drive Flange (Left Side)

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Remove drive flange by firmly screwing puller T10037 to cover of differential (arrow).

Replacing right oil seal

Fig 5: Removing Drive Flange (Right Side)

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Remove drive flange by firmly screwing puller T10037 to transmission housing (arrow).

Fig 6: Removing And Installing Securing Ring

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Always replace circlip of drive flange.

Clamp drive flange with soft jaws in vice. Press circlip out of drive flange groove using new circlip -A-.
Pull out oil seal of drive flange using VW 681.

Fig 7: Flange Shaft Design

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Drive flange assembly with mounted polygonal bearing

1 - Drive flange

2 - Needle bearing (polygonal bearing)

3 - Spacer ring

4 - Circlip

5 - Spacer ring - additionally installed if splined shaft diameter = 30 mm

NOTE:

Polygonal bearings run roughly when drive flange is not installed. This does not indicate faulty bearings. An acoustic test can only be conducted when drive flange is installed.
Look out for damages to polygonal bearings (e.g. cracks in outer race of bearing)
Polygonal bearings can only be replaced together with drive flange.
Drive flanges with a splined shaft diameter of 30 mm have a spacer ring -5- installed between polygonal bearing and planet pinion.

Installing

NOTE: Repair rim offset 6.5 mm if employing used drive flange.

Slightly oil circumference of oil seal.

Fig 8: Installing Right-Hand Drive Flange Seal

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Drive in new oil seal for right drive flange 5.5 mm below surface of housing, taking care not to tilt it.
Fill space between sealing lip and dust lip with sealing grease G 052 128 A1.

Fig 9: Installing Left-Hand Drive Flange Seal

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Drive in new oil seal for left drive flange 5.5 mm below surface of cover, taking care not to tilt it.
Drive in drive flange using mandrel VW 295.
Screw drive axle to drive flange.
Screw on cover plates for drive axle, if installed.

Checking oil level in manual transmission. Refer to Transmission oil level, checking .

Tightening torques

Component		Nm
Drive axle to drive flange	M8	40
	M10	70
Heat shields for drive axles		23