Audi Q7 Owners & Service Manuals

Audi Q7: Gear Oil, Draining and Filling

Gear Oil, Draining, 0D3 "Sport Differential"

Special tools and workshop equipment required

  • Drip Tray

  Caution

This procedure contains mandatory replaceable parts. Refer to component overview prior to starting procedure.

Mandatory Replacement Parts

  • Plug - Oil filler

- Remove the gear oil check plug -arrow-.

  • Removing the gear oil check plug allows the gear oil to drain faster.

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- Remove the drain plug -arrow- and drain the gear oil.

- Install the new drain plug -arrow- and tighten it. Tightening Specification. Refer to → Fig. "Gear Oil Drain Plugs on Rear Final Drive 0D3".

  • Refer to → Chapter "Gear Oil, Filling, 0D3 Sport Differential"

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Gear Oil, Filling, 0D3 "Sport Differential"

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 3 -VAS6291/3- (rework if necessary. Refer to → Fig. "Depending on the Version the Spacer Tube from the -VAS6291/3- can Line Up on the Housing Rib on the Final Drive.".)
  • Drip Tray

  Caution

This procedure contains mandatory replaceable parts. Refer to component overview prior to starting procedure.

Mandatory Replacement Parts

  • Plug - Oil filler

Depending on the Version the Spacer Tube from the -VAS6291/3- can Line Up on the Housing Rib on the Final Drive.

- Grind the adapter spacer tube as shown, opposite the side holes -arrows-.

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Gear Oil, Filling

  • The rear final drive must be in the installed position.
  • The vehicle must be level.
  • Refer to → Chapter "Component Location Overview - Drain and Check Plugs, 0D3 Sport Differential"
  • The gear oil drain plug is installed and tightened. Tightening specification. Refer to → Fig. "Gear Oil Drain Plugs on Rear Final Drive 0D3".
  • Oil specifications. Refer to the Parts Catalog.

- Lift the vehicle.

- Remove the gear oil check plug -arrow-.

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

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

  NOTICE

Incorrect adapter installation

Risk of damaging the fluid filler hole threads.

 - Screw the adapter -A- in straight.

 - The sanded side on the adapter -A- must point to the housing rib -arrow-.

- 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.

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

- Install the oil container -A- on the -VAS6291A-.

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

The rear final drive will not be filled.

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  • When at the correct filling of the rear final drive oil drips between the adapter -A- and the final drive housing -arrow-.

- 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 -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.

A39-10378

- Install the new gear oil check plug -arrow- and tighten. Tightening specification. Refer to → Fig. "Gear Oil Drain Plugs on Rear Final Drive 0D3".

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