Center Differential Housing, Transmission Installed

Special tools and workshop equipment required

Engine/Transmission Jack V.A.G 1383 A
Transmission Support T10337
Counterhold Tool Touareg V10 T10172
Adapter T10172/5
Oil Collecting and Extracting Device V.A.G 1782
Torque Wrench 5-50 Nm V.A.G 1331
Protective goggles

Removing

Transmission installed.

CAUTION:

There is a risk of damaging the transmission.

Do not let the engine run or tow vehicle without gear oil.

NOTE:

General repair instructions, refer to REPAIR INFORMATION .

Clean working conditions for the automatic transmission, refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

-- Remove the rear noise insulation -2-. Refer to NOISE INSULATION .

Fig 1: Identifying Noise Insulation

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NOTE:

Ignore -arrow-.

CAUTION:

Danger of damaging the flex joint in the front muffler.

Do not bend the decoupling element in the front muffler more than 10°.

-- Loosen sleeves -1 and 2-, slide it to the rear and tie the front muffler to the side.

Fig 2: Loosening Bolts Vehicles With Dual Exhaust System

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-- Remove the bolts -arrows- and remove the driveshaft heat shield (if equipped).

Fig 3: Removing Driveshaft Heat Shield - Tightening Specification

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-- Remove the bolt connecting the driveshaft to the transmission. To do this, use the T10172 and T10172/5.

Fig 4: Removing Hold Driveshaft Using T10172

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-- Press the driveshaft together with the rear final drive; the universal joint is able to slide axially.

-- Tie the driveshaft to the side.

CAUTION:

Danger of damaging the transmission fluid pan.

Never use the transmission fluid pan as a support for the transmission.

-- Support the transmission to the tunnel crossmember using the V.A.G 1383 A and T10337.

WARNING:

There is the risk of an accident.

The V.A.G 1383 A may only be used during assembly and must not sit unsupervised under the vehicle.

-- Remove the bolts from the tunnel crossmember -arrows-.

Fig 5: Identifying Crossmember & Bolts

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NOTE:

Shown without the V.A.G 1383 A.

-- Lower the transmission to dimension -a- using the V.A.G 1383 A.

Fig 6: Lowering Transmission

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Dimension -a- = maximum 100 mm.

-- Place the V.A.G 1782 under the transmission.

Fig 7: Tightening Center Differential Housing

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WARNING:

Danger of eye injury.

Wear protective goggles.

NOTE:

The housing does not have an oil drain plug. The axle oil can only be drained by removing the housing.

-- Place a cloth on the tunnel crossmember so the oil does not leak onto it.

-- Loosen and remove the center differential housing bolts in the sequence -6 to 1- and drain the gear oil.

CAUTION:

Transmission components could be damaged.

Carefully remove the center differential housing from the transmission toward the rear. Otherwise the center differential could fall out of the transmission.

-- Secure the center differential -1- so it does not fall out or remove it toward the rear from the input shaft.

Fig 8: Identifying Center Differential

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Installing

Install in reverse order, paying attention to the following:

NOTE:

Replace the center differential housing O-ring.

If the center differential -1- was removed:

-- Position the center differential on the input shaft splines. Rotate the center differential slightly when doing this.

-- Make sure the center differential can be turned by hand.

-- Place the housing with the input shaft installed on the center differential. Rotate the housing slightly if necessary.

-- Tighten the center differential housing bolts, refer to Figure.

Fig 9: Tightening Center Differential Housing

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-- Clean and install the tunnel crossmember. Refer to TUNNEL CROSSMEMBER, REMOVING AND INSTALLING .

-- Install the driveshaft. Refer to DRIVESHAFT, REMOVING AND INSTALLING .

-- Install exhaust system and adjust free of tension. Refer to EXHAUST PIPES/MUFFLERS .

-- Fill gear oil in transfer case. Refer to TRANSFER CASE GEAR OIL, FILLING AFTER REPAIR .