Front Axle Differential Lock Fluid, Draining And Filling

WARNING: This page is about a different variant/trim than selected.

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.
Flexible Funnel: VAS6675

Fig 2: Identifying Flexible Funnel VAS 6675
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Commercially available hose (approximately 1.50 m (4.9 feet) long) outer circumference approximately 15 mm
Commercially Available Funnel
Acid-Resistant Safety Gloves

The vehicle must be level.
The front axle differential lock is in installation position.

CAUTION:

Risk of injury to the eyes and hands by escaping oil.

- Wear protective eyewear.

- Wear acid-resistant safety gloves.

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

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

-- Use the Flexible Funnel: VAS6675 to drain the oil.

-- Position the Funnel so that there is no contact with the oil.

-- Remove the oil drain plug -arrow- from the front axle differential lock.

Fig 3: Identifying Oil Drain Plug

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Completely drain the Front Axle Differential Lock Fluid.

Fig 4: Identifying Flexible Funnel VAS 6675

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Insert and tighten the new oil drain plug -arrow-.

Fig 5: Identifying Oil Drain Plug

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

Fill the front axle differential lock fluid

-- Replace oil filler plug after removing.

The vehicle must be level.

-- Place the Used Oil Collection and Extraction Unit: SMN372500 under the front axle differential lock.

Fig 6: Inserting Funnel In Hose

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Use a Commercially Available Hose approximately (1.50 m (4.9 feet) long) with Outer Circumference approximately 15 mm and a Commercially Available Funnel to fill:

-- Route the hose -A- through the engine compartment.

-- Clean the area near the front axle differential lock oil filler plug -arrow-.

Fig 7: Checking Oil Level

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Cover neighboring components.

-- Remove the oil filler plug -arrow-.

-- Insert Hose -A- in the filler hole -arrow-.

Fig 8: Insert Hose In Filler Hole

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The hose must not sag.

-- Insert the funnel in Hose -A-.

Fig 9: Inserting Funnel In Hose

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Fill with oil until some starts to escape from between the hose and the oil fill hole.

-- Remove Hose. Some extra oil may drain out.

The oil level is correct when it fills up to the lower edge of the oil fill hole.

-- Insert new oil filler plug -arrow- and tighten.

Fig 10: Checking Oil Level

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- If necessary, clean the area near the front axle differential lock oil filler plug -arrow- and neighboring components.

Tightening Specifications

Refer to OVERVIEW - FRONT AXLE DIFFERENTIAL LOCK COMPONENTS