Gear Oil In Rear Final Drive 0BF, Filling

Special tools and workshop equipment required 

• Charging Device For Haldex Coupling 2 VAS6291 or Charging Device For Haldex Coupling 2 VAS6291A
• Charging Device For Haldex Coupling 2 - Adapter 2 VAS6291/2 or Charging Device For Haldex Coupling 2 - Adapter 3 VAS6291/3
• Drip Tray

• The rear final drive must be in the installed position.
• The vehicle must be level.
• Gear oil sealing plug overview. Refer to Figure.
• The gear oil drain plug is installed and tightened. Tightening Specification, refer to -item  16- Oil Drain Plug (See Figure).
• Oil specifications.

-- Use the Charging Device For Haldex Coupling 2 VAS6291A to fill.

-- Lift the vehicle.

-- Remove the gear oil check plug -arrow-.

-- Disconnect the adapter -A- and elbow -B-.

-- Screw in the adapter -A- all the way.

-- Attach the elbow -B- to the adapter -A-.

-- Route the hose over the right drive axle.

• The hose must not sag. It must be routed over the right rear wheel.

-- Lower the vehicle.

-- Make sure that the valve -arrow- is closed.

-- Install the oil container -A- on the Charging Device For Haldex Coupling 2 VAS6291A.

-- Open the valve -arrow- and hold the oil container as shown.

The rear final drive will not be filled.

• When at the correct filling of the rear final drive oil drips between the adapter -A- and the final drive housing -arrow-.
  Fig 4: Identifying Elbow Adapter

  Courtesy of AUDI OF AMERICA, LLC

-- Lift the vehicle.

-- If oil leaks from adapter -A-, set down the fluid container (for example, on a tool cart).

A portion of the excess oil runs back into the oil container.

-- If no more oil runs back, remove the Charging Device For Haldex Coupling 2 VAS6291A.

• The oil level is correct when the rear final drive is filled up to the lower edge of the oil fill hole.

-- If necessary fill the gear oil again.

-- Install the new gear oil check plug -arrow- and tighten. Tightening specification, refer to -item  22- Gear Oil Check Plug (See Figure).