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Removing, installing and checking thermostat > < Draining and filling cooling system

A3 Mk2

Removing and installing coolant pump
Removing and installing coolant pump
Special tools and workshop equipment required
   
t  Hose clip pliers -V.A.G 1921-
  W00-0464
Removing
–  Drain off coolant → Chapter.
–  Remove poly V-belt → Chapter.
–  Detach deflector plate -2-.
–  Remove tensioner -1- for poly V-belt.
  A13-0642
–  Remove toothed belt from camshaft sprocket → Chapter.
–  Remove the centre toothed belt cover -arrows-.
  Note
t  The belt pulley and toothed belt cover (bottom) do not have to be removed.
t  The toothed belt should be left in position on the crankshaft sprocket.
t  Before removing coolant pump, cover toothed belt with a cloth to protect against coolant.
  A19-0325
–  Unscrew bolts -1- for coolant pump and remove coolant pump -2-.
–  Remove O-ring -3-.
Installing
Installation is carried out in the reverse order; note the following:
  Note
Renew O-ring.
–  Clean and smoothen sealing surface for O-ring as required.
–  Moisten new O-ring -3- with coolant.
–  Fit coolant pump -2-.
l  Installation position: Sealing plug in housing faces downwards.
–  Tighten bolts -1- for coolant pump.
–  Install toothed belt (adjust valve timing) → Anchor.
–  Install poly V-belt → Chapter.
–  Fill cooling system → Anchor.
Tightening torques
  A19-0084
ComponentNm
Coolant pump to cylinder block15
Toothed belt cover (centre) to cylinder block10 1)
Tensioner for poly V-belt to bracket for ancillaries23
Deflector plate to bracket for ancillaries23
l  1) Apply locking fluid when installing; refer to → Electronic parts catalogue for locking fluid.

   

Removing, installing and checking thermostat > < Draining and filling cooling system