audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Gear Oil In Center Differential, Checking and Topping Off|Page 2623 > < Gear Oil In Center Differential, Checking and Topping Off|Page 2621
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Note:  There is a distinction made between two cases:

-A Center differential was not removed
-B Center differential was removed

A - Center differential was not removed (e.g. after removing and installing drive flange)
-

Remove oil filler plug (arrow B).

-

Top up transmission fluid to lower edge of oil filler hole. Specification and capacity.

-

Install old oil filler plug.

Note:  If it was necessary to loosen or remove the exhaust system, this must be re-secured or reinstalled for the road test. It must be removed and
installed again for the final oil level check.

-

Road test vehicle (15 minutes pure driving).

Note:  During road test, gear oil will enter output cover and Torsen differential; oil level in center differential housing will drop.

-

Fill transfer housing with gear oil and check oil level.

B - Center differential was removed and disassembled
-

Add 200 ml. gear oil to output cover.

-

Assemble center differential and install.

-

Remove oil filler plug (arrow B).

-

Add 600 ml. gear oil to center differential housing.

-

Always replace oil filler plug.

-

Install new oil filler plug.

Note:  Oil level does not need to be re-checked.

All:
-

Secure or re-install exhaust system free of stress:

Gear Oil In Center Differential, Checking and Topping Off|Page 2623 > < Gear Oil In Center Differential, Checking and Topping Off|Page 2621