SEAT Workshop Service and Repair Manuals

Removing –  Fit the gearbox to installation stand → Chapter. –  Mount gearbox on assembly stand → Chapter. –  Fit tray -T20173- beneath gearbox. –  Drain gearbox oil.

–  Turn out fixing screw for flanged shaft Screw these two screws in the flange and with a lever hold the shaft –  Remove flange shaft along with spring, thrust washer and tapered ring.

–  Remove clutch release lever -A- with clutch release collar and guide sleeve . –  Turn out fixing screw for flanged shaft Screw these two screws in the flange and with a lever hold the shaft –  Remove flange shaft along with spring, thrust washer and tapered ring.

–  Unscrew the bolts -arrows- and remove the gearbox casing cover.

–  Take out the bushing pin -arrow- and remove the fork of 5th gear -1-. –  Using the pliers -A-81124-, remove the circlip -2- for the 5th gear synchroniser body. –  Using the pliers -A-81124-, remove the circlip -3- for the 5th gear mobile pinion. –  Remove the 5th gear movable sleeve.

–  Remove the hub and the synchronous ring of the 5th gear. Attach to the adapter -U-40100/1-synchronous ring, where the contact surface is greatest, see Figure –  Remove the mobile 5th gear pinion and the needle bearing from the input shaft. –  Remove the 5th gear mobile pinion A on the secondary shaft.

–  Extract the bolts -A- securing the allotment for the input and secondary shafts grooved bearings and the gearbox casing. –  Unscrew hexagon collared nut -B- for securing reverse gear selector mechanism. –  Rotate the gearbox in the support tool -T20172/4A- so that the gearbox casing is facing upwards. –  Unscrew the bolts that secure the gearbox housing to the clutch housing. –  Remove the gearbox casing, carefully levering it off and avoiding damage to the sealing surfaces.

–  Remove differential -A- from gearbox housing.

For vehicles with start stop system –  Remove the gearbox neutral position sender -G701--arrow-.

Continued for all vehicles –  Remove selector shaft with selector cover -A-. For this, put the selector into neutral. Then remove bolts -arrows- and pull selector shaft out of gearbox housing. –  Take the bearing bushes -B- out of the upper part of the gearbox. –  Take out the reverse light switch -C-.

–  Remove bolt -A- for securing reverse gear wheel shaft. –  Take the bearing bushes -B- out of the lower part of the gearbox.   Note Do not remove sealing cover -arrow- when dismantling gearbox.

–  Release the input and secondary shafts along with the allotment, the prong operation mechanism and reverse gear mesh using the punch -T10085-.   Note t  Fit the gearbox casing onto the press plates so that the centring sockets are not damaged in any way. t  When releasing components, ensure that they do not fall on the ground; a second mechanic is required. –  Release the input and secondary axles from the allotment with the grooved ball bearings .