SEAT Workshop Service and Repair Manuals > Leon Mk1 > 001 Automatic gearbox | Final drive, differential, differential lock | Articulation flange seals: removing and installing

Fitting

–	Fill the space between the lip seal and the dust guard with -G 052 128 A1- grease.

Note!

With the gearbox removed, use tools -U-40450A/3- and -U-40450A/6- to fit the seal into the housing.

–	With the gearbox fitted, use tool -T20134- to fit the new seal, threading the spindle into the differential's threaded part.

–	Rotate the nut until the new seal is well fitted.

–	Fit the articulation flange with the spring, thrust washer, and conical ring.

–	Fit securing bolt to articulation flange. Use tool -T20005- and tighten the bolt to 25 Nm.

Articulation flange oil seal, left

–	Place the driveshaft in the engine bay, and fit it into the wheel hub.

–	Fit the ball joint into the wheel bearing housing. Lock the ball joint with a Torx -T40- key and tighten the new self-locking nut to 20 Nm + 90°.

1 -	Torx -T40- (shortened approx. 10 mm)

2 -	-SAT 8010/18A-

3 -	-SAT 8010-

Note!

Make sure that the ball joint dust sleeve is not damaged or twisted.

Articulation flange oil seal, right

–	Fit the protective cover for the driveshaft, in case it is fitted, to the engine and tighten to a torque of 35 Nm.

Articulation flange oil seals, right/left

–	Fit driveshaft to gearbox flange and tighten bolts to 70 Nm in two stages (I - 10 Nm, II - 70Nm), with the correct spanner from tool -U-40020-.

–	Checking gearbox oil level → Chapter.

–	Install the insulation tray, if fitted: → Bodywork Repairs, installation work, exterior; Rep. Gr.50

–	Connect the earth battery strap.

Note!

When the battery is re-connected, depending on which version, the vehicle equipment will have to be encoded.

SEAT Workshop Service and Repair Manuals