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