Center Differential Housing And Center Differential With Transmission Installed: Removing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 Audi S5, 2012 Audi S5, 2011 Audi S5, 2010 Audi S5, and 2009 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the rear noise insulation by loosening the fasteners -2- and -3-

Fig 1: Identifying Noise Insulation Components

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NOTE:

Do not bend the flex joint in the front exhaust pipe by more than 10° or it will be damaged.

-- Disconnect the exhaust system at clamping sleeve(s) -arrows-.

Fig 2: Disconnecting Exhaust System At Double Clamps

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

-- Remove the plug -arrow- and drain the transmission fluid.

Fig 3: Locating Transmission Fluid Drain Plug

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-- Install the plug -arrow- and tighten it to 40 Nm.

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

Fig 4: Identifying Driveshaft Heat Shield

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Driveshaft Bolted on the Transmission Side:

-- Remove the bolts that connect the driveshaft to the transmission by counterholding them with the T10172 and T10172/5.

Fig 5: Holding Driveshaft Using T10172

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

-- Secure the driveshaft to the side.

Driveshaft Mounted on the Transmission Side:

-- Remove the driveshaft. Refer to DRIVESHAFT, REMOVING FROM REAR FINAL DRIVE or DRIVESHAFT ATTACHED ON TRANSMISSION SIDE .

All Vehicles:

-- Support the transmission using the V.A.G 1383 A with the T10337 attached.

Fig 6: Supporting Transmission With V.A.G 1383

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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 cross member -arrows-.

Fig 7: Identifying Bolts & Tunnel Crossmember

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

Fig 8: Lowering Transmission

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Dimension -a- = maximum 70 mm.

-- Remove the nuts -arrow- and the tunnel cross member.

Fig 9: Identifying Nuts And Tunnel Crossmember

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

CAUTION:

Danger of damaging the center differential.

Carefully and slowly pull center differential housing off of transmission toward rear. Otherwise the center differential can fall out of the transmission.
A center differential that has fallen onto the floor must not be installed again. Any center differential that has fallen out must be replaced.

-- Remove the bolts -A- and -arrows- for the center differential housing -B- to the transmission.

Fig 10: Locating Center Differential Housing Bolts

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-- Carefully remove the center differential housing -6-, the pressure spring -3-, the adjusting shim -4- and the plate spring -5-.

Fig 11: Removing Center Differential Housing -6-, Pressure Spring -3-, Adjusting Shim -4- And Plate Spring -5-

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-- Remove the center differential -2- and the gear carrier -1-.

If the gear carrier -1- remains in the center differential housing, proceed as follows:

Fig 12: Holding Gear Carrier -1- By One Of Side Ribs With Pliers And Remove It In Direction Of -Arrow A-

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-- Hold the gear carrier -1- by one of the side ribs with pliers and remove it in direction of -arrow A-.

-- At the same time, carefully hit housing -arrow B- alternating from one side to the other using a rubber hammer.

CAUTION:

Danger of damaging the sealing surface on the center differential housing.

Use a hammer to hit the housing on several places.
Do not damage sealing surfaces when doing this.

-- Remove the center differential.