Center Differential, Removing And Installing: Removing

WARNING: This page is about a different car, the 2010 Audi A4 and 2009 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

The transmission is installed.

CAUTION:

Danger of causing damage to the transmission.

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

NOTE:

Follow the general repair instructions. Refer to GENERAL REPAIR INFORMATION .

Pay attention to clean working conditions for the transmission. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

-- Loosen the quick-release fasteners -2 to 4- and remove the rear noise insulation. Refer to NOISE INSULATION .

Fig 1: Identifying Noise Insulation

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NOTE:

Ignore -arrow-.

CAUTION:

Danger of causing damage to the decoupling element inside the front exhaust pipe.

Do not bend decoupling element in front exhaust pipe more than 10°.

-- Vehicles with a front exhaust pipe: disconnect the exhaust system from the clamping sleeve -arrow-.

Fig 2: Exhaust System Clamping Sleeve (Single Exhaust Pipe)

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-- Vehicles with 2 exhaust systems: disconnect the exhaust system from the clamping sleeves -1 and 2-.

Fig 3: Exhaust System Clamping Sleeves (Two Exhaust Pipes)

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-- Remove the bolts -arrows- and remove the driveshaft heat shield.

Fig 4: Driveshaft Heat Shield Bolts

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-- Remove the bolt connecting the driveshaft to the transmission. To do so counter hold with the Counterhold - Kit - Multiple Use T10172 with Counterhold - Kit - Adapters 5 T10172/5.

Fig 5: Counterholding Driveshaft Using T10172 And T10172/5

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-- Press the driveshaft together with 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 on the tunnel crossmember using the Engine and Gearbox Jack VAS6931 and the attached Engine/Gearbox Jack - Gearbox Support T10337.

WARNING:

There is the risk of an accident.

The Engine and Gearbox Jack VAS6931 may only be used during assembly and must not sit unsupervised under the vehicle.

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

Fig 6: Identifying Tunnel Crossmember

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NOTE:

The illustration id shown without the Engine and Gearbox Jack VAS6931.

-- Lower the transmission to dimension -a- using the Engine and Gearbox Jack VAS6931.

Fig 7: Engine And Gearbox Jack VAS 6931

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Dimension -a- = maximum 100 mm.

-- Place the Used Oil Collection and Extraction Unit SMN372500 under the transmission.

Fig 8: Center Differential Housing - Tightening Sequence

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WARNING:

Danger of eye injury.

Wear protective eyewear.

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 9: Identifying Center Differential

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NOTE:

There are different versions of the center differential -1-.