1.4 TSI engine (EA111) · Turbocharging/supercharging · Compressor

Removing and installing drive unit seal for supercharger

Special tools and workshop equipment required

  • Gearbox support - T10108-
  • Assembly tool - T10208-
  • Extractor hook - T20143-
  • Repair kit for supercharger ⇒ Electronic parts catalogue (ETKA)

Removing

  • Secure compressor on the gearbox support - T10108- with 2 bolts-arrow-.
  • Pry off the circlip -1- with a slot-head screwdriver -2-.
  • Pull out the seal -1- with the puller hooks - T20143/1-.

Installing

  • Put together assembly cone -T10208/5- and assembly sleeve
    • T10208/4-.
  • Slide the new seal -1- onto the assembly sleeve in the -arrow direction- -T10208/5- -T10208/4- via the assembly cone.
  • Pull down the assembly cone - T10208/5- from the assembly sleeve in the -arrow direction- -T10208/4-.
  • Slide the assembly sleeve - T10208/4- onto the compressor shaft.
  • Using the thrust piece - T10208/2-, press in the seal via the assembly sleeve - T10208/4- up to the stop.
  • Press in the new circlip -1- up to the stop also using the assembly tool - T10208/2-.

Changing the compressor fluid

  • Undo the securing bolts for the drive unit according to the specified sequence -A- to -H-.
  • Turn the gearbox support - T10108- until the shaft points to the floor.
  • Unscrew the securing bolts and remove the drive unit -1-.
  • Drain compressor oil completely from drive unit.
  • Collect the escaping fluid in a suitable container.
  • Turn the gearbox support - T10108- until the pair of gears point upwards.
  • Remove sealant residues from compressor and drive unit with a rotating brush, e.g. a hand drill with a plastic brush (wear eye protection).
  • Carefully clean sealing surfaces. They must be free of oil and grease.
  • Dirt and sealant residues must not be allowed to enter the space.
  • Fill the space -arrow- with new oil (44 ml) from the repair set.

Do not apply sealant until directly before the drive unit is fitted.

  • Apply sealant to the sealing surface on the compressor.

Bead of sealant must be 2 to 3 mm thick and must run along inside edge in area of bolt holes.

  • Tighten the new securing bolts for the drive unit to “12 Nm” according to the specified sequence -A- to -H-.
  • Install supercharger ⇒ 2 Compressor