Drive shaft flange seal, replacing: Installing

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Installation is carried out in reverse order. Note the following:

Fig 1: Inserting O-Ring

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Replace O-ring between drive pinion bearing and flange.
Lightly oil O-ring before installing.
Pack space between sealing and dust lips half-full with sealing grease G 052 128 A1.
Lightly oil outer circumference of seal.

Fig 2: Driving In Seal For Driveshaft Flange

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Drive in seal for drive shaft flange onto stop with drift 3026.

Fig 3: Driving Drive Shaft Flange Onto Drive Pinion

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Drive shaft flange onto drive pinion until securing nut can be mounted.

NOTE: Use the old hex nut to reattach the flange to the drive pinion. Otherwise the original installed position will not be relocated.

Clean drive pinion nut and threads on drive pinion of oil and grease residues. Thinly coat threads with locking fluid D 000 600.

NOTE: The number of turns when reattaching must be the same as during unscrewing.

Fig 4: Checking Dimension "A" And Dimension "B"

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Perform control measurement - check dimension "a" and dimension "b". Refer to Calculate dimension "a" and dimension "b" onward.

NOTE:

O-ring -1- must be installed when measuring.
The hex nut must be returned to exactly the marked position.
Maximum permissible deviation from original measurements: ± 0.3 mm.

Fig 5: Locking Drive Pinion Hexagon Nut

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Lock hex nut.
Move final drive back to installation position.

Fig 6: Removing/Installing Securing Bolts At Transmission Support

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Screw final drive to front mounting bracket -arrows-.
Top off gear oil in rear final drive and check oil level. Refer to Gear oil level in rear final drive, checking .
If there was a factory marking at the drive shaft determine now the radial run-out at the flange/drive shaft. Refer to Drive shaft flange, measuring and marking radial run-out . Attach drive shaft in such a way that the color coding at the drive shaft are aligned with new marking at flange.
If the position of the drive shaft relative to the flange/drive shaft were marked before removal the drive shaft must be reattached at same position. Refer to Drive shaft, removing and installing .

Observe installation instructions. Refer to Drive shaft, servicing

Replace seal on drive shaft flange and tighten drive shaft to torque. Refer to Drive shaft, removing and installing .
Stress-free alignment of exhaust system:

Refer to

26 - EXHAUST SYSTEM, EMISSION CONTROLS for 1.8 LITER 4-CYL. 5V TURBO ENGINE MECHANICAL, ENGINE CODE(S): AMB
26 - EXHAUST SYSTEM, EMISSION CONTROLS for 2.0 LITER 4-CYL. 4V TURBO ENGINE MECHANICAL, ENGINE CODE(S): BPG, BWT
26 EXHAUST SYSTEM, EMISSION CONTROLS for 3.0 LITER 6-CYL. 5V ENGINE MECHANICAL, ENGINE CODE(S): AVK, BGN
26 - EXHAUST SYSTEM, EMISSION CONTROLS for 3.2 V6 4V ENGINE MECHANICAL, ENGINE CODE(S): BKH
26 - EXHAUST SYSTEM, EMISSION CONTROLS for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BNS
26 - EXHAUST SYSTEM, EMISSION CONTROLS for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BHF

; Removing and installing exhaust-system components

Tightening torques

Component	Nm
Front transmission support on final drive	40
Drive shaft on rear final drive	55