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Home >> Volkswagen >> 2023 >> Golf R 20th Anniversary Edition, Eng CD DSFF >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Controls, Housing (Transmission Installed) (02Q) >> 34 Controls, Housing >> Front Axle Differential Lock >> Front Axle Differential Lock, Installing
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Front Axle Differential Lock, Installing

CAUTION:

When installing, guide and handle the front axle differential lock in a way that the installation position/transport position is kept. When tilting or turning the front axle differential lock oil can leak due to the bleeding, which can later on suggest a leak.

Install in the reverse order of removal while noting the following:

Refer to "Front Axle Differential Lock, Removing" to get a list of the special tools needed. Refer to FRONT AXLE DIFFERENTIAL LOCK, REMOVING .

Replace self-locking bolts and nuts after removing them.

Replace the bolts that were tightened with an additional turn after removing them.

Install any cable ties that were loosened or cut off during removal at their same location.

-- Coat the splines on the manual transmission differential with Grease for Clutch Plate Shaft Splines.

-- Push the engine/transmission slightly toward the front (a second technician is needed or the Engine Support: T10533  ).

-- Slide flange shaft front axle differential lock completely onto manual transmission. While doing this, join drive axle/bevel box splines centrally with the differential. If necessary, turn on the flange shaft.

-- With proper tooth position and central guiding, front axle differential lock slips up to stop against manual transmission.

CAUTION:

Do not pull front axle differential lock with mounting bolts against manual transmission, otherwise front axle differential lock is canted and mounting eyelets can break off.

-- Install the lower bolts (-arrows-) that attach the front differential lock to the manual transmission and tighten to tightening specification. Refer to OVERVIEW - DIFFERENTIAL .

Fig 1: Identifying Front Axle Differential Lock Lower Bolts
GWWN34-12017Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install the upper bolts (-arrows-) that attach the front differential lock to the manual transmission and tighten to tightening specification. Refer to OVERVIEW - DIFFERENTIAL .

Fig 2: Identifying Front Axle Differential Lock Upper Bolts
GWWN34-12018Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Tighten the flange shaft. Refer to OVERVIEW - DIFFERENTIAL .

Fig 3: Identifying Both Flange Shafts With Springs, Thrust Washers And Tapered Rings
GWWN34-10712Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Threaded inserts (for example, "Heli Coil") are found in the pendulum support fastening holes on some transmissions. Refer to Figure.

Fig 4: Identifying Pendulum Support
GWWN34-10973Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install the pendulum support with new bolts. Refer to OVERVIEW - ASSEMBLY MOUNTS .

-- Install the connector -arrow- on the Differential Locks Control Module -J647-.

Fig 5: Locating Axle Differential Lock Control Module Connector
GWWN34-12013Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install the drive axle. Refer to DRIVE AXLE, REMOVING AND INSTALLING .

Fig 6: Identifying Heat Shield Nuts
GWWA34-11312Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- If removed, install the drive axle heat shield -1- -arrows-. Refer to DRIVE AXLE HEAT SHIELD, REMOVING AND INSTALLING .

-- Fill the front axle differential lock fluid. Refer to FRONT AXLE DIFFERENTIAL LOCK FLUID, DRAINING AND FILLING .

-- Assemble the exhaust system. Refer to OVERVIEW - MUFFLER, GOLF FWD .

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

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