Audi Q7 Owners & Service Manuals

Audi Q7: ATF

ATF Level, Checking

ATF Level, Checking, 0D3 "Sport Differential"

  Caution

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

Mandatory Replacement Parts

  • Plug - ATF check

Test Requirement

  • ATF temperature: 10 ºC to 60 ºC (50 to 140 ºF)
  • 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"

Special tools and workshop equipment required

  • Drip Tray

- Remove the ATF check plug -1- to check the ATF level.

A39-10489

Tip:

  • The ATF check plug -1- is located on the left side of the rear final drive. Identification "ATF" on the final drive housing -arrow-
  • ATF plug overview. Refer to → Chapter "Component Location Overview - Drain and Check Plugs, 0D3 Sport Differential".
  • The ATF level is correct when the rear final drive is filled to the lower edge of the fill hole.

If the ATF is correct:

- Install the new ATF check plug and fasten. Tightening specification. Refer to → Fig. "ATF Drain Plugs on Rear Final Drive 0D3".

If the ATF is not correct:

- Fill the ATF. Refer to → Chapter "ATF, Filling, 0D3 Sport Differential".

ATF, Draining and Filling

ATF, 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 - ATF drain
  • Plug - ATF check

- Remove the ATF check plug -arrow- so that the ATF drains faster.

A39-10366

- Remove the ATF drain plug -arrow- and drain the ATF.

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

- Fill the ATF in the rear final drive. Refer to → Chapter "ATF, Filling, 0D3 Sport Differential".

A39-10367

ATF, Filling, 0D3 "Sport Differential"

Special tools and workshop equipment required

  • Vehicle Diagnostic Tester
  • 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-
  • Drip Tray

  Caution

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

Mandatory Replacement Parts

  • Plug - ATF check

Test Conditions:

  • 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 ATF drain plug is installed and tightened. Tightening specification. Refer to → Fig. "ATF Drain Plugs on Rear Final Drive 0D3".

  NOTICE

Using incorrect transmission fluid.

Risk of damaging the transmission.

 - Only use transmission fluid as specified in the Parts Catalog.

- Use the -VAS6291A- to fill.

  • The ATF filler tool must be clean and the ATF must not be mixed with any other oils.

- Lift the vehicle.

- Remove the ATF check plug -1-.

Tip:

  • The ATF check plug -1- is located on the left side of the rear final drive. Identification "ATF" on the final drive housing -arrow-

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

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

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

- Route the hose over the left drive axle.

  • The hose must not sag. It must be routed over the left rear wheel on the vehicle.

- Lower the vehicle.

A39-10379

- 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 hydraulic control unit and the left and right chambers in the rear final drive are now filled.

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  • When the correct filling of the rear final drive hydraulic control module ATF drips from the adapter -A-

If there still is no ATF in the adapter -A-:

- Continue filling until the level is correct.

When ATF starts to leak out of the adapter -A-:

- Lift the vehicle.

- Place the oil container for example on a tool box.

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

- If no more ATF 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.

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- Install the ATF check plug -arrow- hand-tight.

- Connect the Vehicle Diagnostic Tester and turn on the ignition.

- Select the function 22 - AWD Electronics in the Vehicle Diagnostic Tester under Guided Functions in the directory 22- ATF Filling.

  • Follow all the instructions given by the Vehicle Diagnostic Tester exactly.

The system is filled and bled using the Vehicle Diagnostic Tester.

A39-10366

Tip:

  • Repeat the filling process if the system detects there is still air inside the system after performing the 22 - ATF Filling function.

- Remove the ATF check plug -arrow- again.

Test Condition:

  • The ATF level is correct when the rear final drive is filled up to the lower edge of the filler hole -arrow-.
  • If necessary fill the ATF.
  • In the DTC memory there is no entry and no "sporadic malfunction". Refer to Vehicle Diagnostic Tester.

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

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