Gear Oil, Draining And Filling

WARNING: This page is about a different car, the 2023 Volkswagen Atlas. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Used Oil Collection and Extraction Unit:SMN372500

Fig 1: Identifying Used Oil Collection And Extraction Unit
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Charging Device for AWD Clutch Coupling 2:VAS6291A

Fig 2: Identifying Charging Device For Haldex Coupling 2 VAS6291A
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Charging Device for AWD Clutch Coupling 2 - Adapter 2:VAS6291/2

Fig 3: Device For Haldex Coupling 2 - Adapter 2VAS6291/2
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Torque Wrench, 6-50Nm:VAG1331A

Fig 4: Ident ifying Torque Wrench (5 To 50 Nm) V.A.G 1331
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Oil Filler - Adapter 6:VAS6262/6

NOTE:

The gear oil in the bevel box must only be drained for a repair. Changing the oil is not intended.

Refer to the appropriate Electronic Parts Information for the gear oil specification.

Requirements

The vehicle must be level.

-- Lift the vehicle, all four mounts from lifting platform at the same height.

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- If equipped, remove the right drive axle heat shield from the bevel box -arrows-. Refer to DRIVE AXLE, REMOVING AND INSTALLING .

-- Place the Used Oil Collection and Extraction Unit:SMN372500 under the transmission.

Fig 5: Fluid Filler Plug - Tightening Specifications

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

WARNING:

Risk of injury due to hot gear oil.

Wear protective eyewear.
Wear acid-resistant safety gloves.

-- Remove the oil drain plug -2- and drain the gear oil.

-- Install the new oil drain plug.

-- Tighten the bolt to the tightening specification. Refer to Fig 7.

NOTE:

Use the Used Oil Collection And Extraction Unit:SMN372500 to catch escaping gear oil.

-- Remove the oil filler hole plug -1-.

-- Install Charging Device for AWD Clutch Coupling 2 - Adapter 2:VAS6291/2 -A- until it stops.

Fig 6: Identifying Adapter & Elbow

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-- Lock the elbow -B- with the adapter -A-.

-- Fill the gear oil.

NOTE:

When the bevel box is filled correctly, oil escapes at adapter -A-.

If the oil still does not leak out, repeat the filling procedure.

-- After filling correctly, remove the Charging Device for AWD Clutch Coupling 2 - Adapter 2:VAS6291/2 .

-- Install the >>old<< oil filler plug and lightly tighten it.

-- Start the engine, engage a gear and let the transmission turn for approximately two minutes.

-- Switch off the engine and remove the oil filler hole plug.

-- Check the oil level and fill again with oil up to the lower edge of the filler hole.

-- Install a new oil filler plug.

-- Tighten the bolt to the tightening specification. Refer to Fig 7.

NOTE:

Carefully remove leaking oil from the bevel box.

-- Install the heat shield above the right drive axle, if equipped. Refer to DRIVE AXLE, REMOVING AND INSTALLING .

-- Install the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

Tightening Specifications:

Fig 7: Fluid Filler Plug - Tightening Specifications

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1 -	Oil filler hole plug
	15 Nm Replace after removing
2 -	Fluid Drain Plug
	15 Nm Replace after removing