SEAT Workshop Service and Repair Manuals > Leon Mk1 > 6-speed manual gearbox 02Q, all-wheel drive | Final drive, differential, differential lock | Flanged shaft seals: replacing with the fitted manual gearbox (pair of bevelled gears)

Procedure

l	Gearbox must be fitted.

–	Raise the vehicle.

–	Remove front left wheel → Running gear, axles, steering; Rep. Gr.44

–	Remove centre noise insulation → Bodywork, exterior fitting work; Rep. Gr.50.

–	Unscrew the right drive shaft from gearbox flange.

–	Remove the left the sound proofing → Rep. Gr.66.

–	If present, remove the front left vehicle level sender -G78--arrows-.

WARNING

To loosen the collar bolts on the wheel drive shaft, the wheel bearing must not have any pressure on it (the vehicle must be lifted off its wheels)

–	Remove left-hand side wheel drive shaft → Rep. Gr.40.

–	Fit the tray -T20173- beneath gearbox to collect the oil.

–	Unscrew the bolt securing the left flanged shaft using the spanner -T20203-; to do this, screw two bolts into the flange and immobilise the shaft with a lever.

–	Remove the flanged shaft.

–	Extract the flanged shaft seal using the adapter -T20143/2-.

–	Lightly lubricate outer edge of new seal.

–	Fill space between sealing lip and dustcap -arrow-, halfway, with sealing grease → Parts catalogue.

–	Fit new seal as far as it will go using tappet -T10088-, without tilting it.

–	Press the flanged shaft against the gearbox housing and screw it in. Tightening torque → Item

The remainder of the installation is carried out in the reverse order to removal; noting the following:

–	Fit the left hand side wheel drive shaft → Rep. Gr.40.

–	Add gear oil to the manual gearbox and check the oil level → Chapter.

Tightening torques

Component		Nm
Flanged shaft to differential		25 → Item

SEAT Workshop Service and Repair Manuals