SEAT Workshop Service and Repair Manuals

Differential: Disassembling and assembling Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.

Special tools and workshop equipment required

t	Extractor kit -T20140-, see equivalent → Anchor

t	Counterhold -T20141-, see equivalent → Anchor

t	Counterhold -U 10103-, see equivalent → Anchor

t	Extractor kit -U 40100B-, see equivalent → Anchor

t	Kit (case) -U 40200A-, see equivalent → Anchor

t	Kit (case) -U 40450A-, see equivalent → Anchor

t  Kit (case) -U 40300-, see equivalent → Anchor

t  Hot air blower -SAT 1416-, see equivalent → Anchor t  Digital thermometer -SAT 4002-, see equivalent → Anchor

Remove the outer ring of the roller bearing from the clutch casing –  Extract the conical roller bearing outer ring and the bearing sockets using the extractor kit -T20140-.   Note After pulling out, check shim for damage and renew if necessary.

Insert the outer ring of the roller bearing into the clutch casing –  Fit the shim first. l  Installation position: the interior diameter rebate should point towards the seal

Extract the inner ring of roller bearing l  Before inserting the roller bearing inner ring it must be heated using the hot air blower -SAT 1416- until a temperature of 100 °C. l  The temperature can be measured with the digital thermometer -SAT 4002-.   Note t  Ensure that the flat base -U 40100/3- hooks are well secured to the inner rings of the roller bearings. t  Ensure that the roller bearing cage is not trapped when the internal rings of the differential casing are removed. –  Before installing the extractor, fit the kit (case) -U 40300- with the adaptor -U 40300/13-.

Insert the inner ring of roller bearing

Remove the outer ring of the roller bearing from the gearbox casing –  Use the extractor kit -T20140- with adaptor -T20140/30-.

Fitting the outer ring of the roller bearing into the gearbox casing –  Support the gearbox casing on the adapter -U 40450/1- with the adapter -U 40450/11-, theadapter -U 40450/4-, the adapter -U 40450/5- and the adapter -U 40450/10- and as a base for connecting the inner ring, the installation tool -U 10103-.

Removing and fitting the elastic pin for the planet gear shaft Removing –  Cover the inner ring of the roller bearing to avoid damaging it or contaminating it with shavings. –  Drive out spring pin with chisel, inserting chisel into annular groove. Installation: –  Drive the new spring pin in the differential cage as far as it will go.

Fitting sun gear and planetary gears –  Fit the complete assembly of thrust washers with gear oil. –  Fit the two large planetary gears and secure them (for example using the flanged axle). –  Fit the small planetary gears offset by 180° and rotate them inwards. –  Press the planetary gear shaft -arrow A- to the first small planetary gear. –  Fit the threaded components -arrow B- in the large planetary gears. l  Installation position: edge towards the sun gear. –  Insert the planetary gear drive to the final position and secure it with the elastic pin.