Audi A6 Typ 4G: Gear Oil
Gear Oil Drain and Inspection Plugs Overview
Gear Oil Drain and Inspection Plugs Overview, 0BE, 0BF
Gear Oil Drain Plug on Rear Final Drive 0BF
1- Check plug for gear oil
- Tightening Specification -item 23-.
- Always replace.
2- Gear oil drain plug
- Tightening Specification -item 17-.
- Always replace.

Gear Oil Drain Plug on Rear Final Drive 0BE
1- Check plug for gear oil
- Tightening Specification -item 23-.
- Always replace.
2- Gear oil drain plug
- Tightening Specification -item 17-.
- Always replace.

Gear Oil, Checking Level
Gear Oil, Checking Level, 0BC
Special tools and workshop equipment
required
- Remove the plug to check the transmission fluid level
-arrow-.
The oil level is correct when the rear final drive is filled
up to the lower edge of the oil fill hole.
- Refer to the Parts Catalog for the correct transmission
fluid specification.
- Install the plug -arrow- and
tighten it.
Tightening specification 30 Nm.

Gear Oil, Checking Level, 0BE, 0BF
Test requirement
- Gear oil temperature: 10 ºC to 60 ºC (50º to 140 ºF)
- The rear final drive must be in the installed position.
- The vehicle must be level.
- Gear oil plug overview. Refer to
→ Chapter "Gear Oil Drain and Inspection Plugs Overview, 0BE,
0BF".
Special tools and workshop equipment
required
Rear Final Drive 0BF
- Remove the gear oil check plug -arrow-,
located on the right side of the final drive.

Rear Final Drive 0BE
- Remove the gear oil check plug -1-.
Continuation for All Rear Final Drives
- The oil level is correct when the rear final drive is filled
up to the lower edge of the oil fill hole.
- Refer to the Parts Catalog for the correct transmission
fluid specification.
- If necessary fill the gear oil.
- Install the gear oil inspection plug -arrow- and tighten. Tightening
specification: -item 23-.

Gear Oil, Draining and Filling
Gear Oil, Draining, 0BE, 0BF
Special tools and workshop equipment
required
Rear Final Drive 0BF
- Remove the gear oil check plug -arrow-.
Note
- Gear oil plug overview. Refer to
→ Chapter "Gear Oil Drain and Inspection Plugs Overview, 0BE,
0BF".
- Removing the gear oil check plug allows the gear oil to
drain faster.

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

Rear Final Drive 0BE
- Remove the gear oil check plug -1-.
Note
- Gear oil plug overview. Refer to
→ Chapter "Gear Oil Drain and Inspection Plugs Overview, 0BE,
0BF".
- Removing the gear oil check plug allows the gear oil to
drain faster.

- Remove the drain plug -arrow-
and drain the gear oil.
Continuation for All Rear Final Drives
- Install the new drain plug -arrow- and tighten it. Tightening Specification
-item 17-.

Gear Oil, Filling, 0BF
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 Charging Device
For Haldex Coupling 2 - Adapter 3 -VAS6291/3- can line up on the housing rib on
the final drive.".)
- Drip Tray
Depending on the version the spacer tube from the Charging
Device For Haldex Coupling 2 - Adapter 3 -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.
- Gear oil plug overview. Refer to
→ Chapter "Gear Oil Drain and Inspection Plugs Overview".
- The gear oil drain plug is installed and tightened. Tightening
specification. Refer to -item 17-.
- 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.
Caution
Risk of damaging the fluid filler hole threads.
- Do not install the adapter -A-
at an angle.
- 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 Charging Device For Haldex Coupling 2 -V-.
- 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 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 23-.

READ NEXT:
Gear Oil Drain and Inspection Plugs Overview
Gear Oil Drain and Inspection Plugs Overview, 0BF
1- ATF check plug
Identification "ATF" on the
housing -arrow-
Tightening Specification -item 13-.
Al
Seals Component Location Overview, 0BC, 0BD
1 - Right Ring
Replacing. Refer to
→ Chapter "Flange Shaft Protective Ring, Replacing".
2 - Right Seal
Replacing. Refer to
SEE MORE:
Applies to: vehicles with diesel engine
The diesel particulate filter filters nearly all of
the soot particles out of the exhaust. The filter
cleans itself automatically under normal driving
conditions. If the filter cannot clean itself (for example,
because you are only driving short distances),
th
Gas-Filled Strut with Metal Clip, Removing and Installing
Removing
- Support the lid or secure it against falling.
- Using a small screwdriver, lift the securing spring
-1- slightly and remove the
gas-filled strut -2- from the ball
stud.
Installing
Install in reverse order of removal. No