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Parts of cooling system (on body) > < Removing and installing coolant pump

A4 Mk3

Removing and installing thermostat
Removing and installing thermostat
Removing
–  Drain coolant → Chapter.
–  Remove coolant pump → Chapter.
   
–  Unscrew bolts -arrows- and remove connection.
–  Detach thermostat.
Installing
Installation is carried out in the reverse order; note the following:
l  Tightening torque → Chapter „Coolant pump and thermostat - exploded view“
  Note
Renew gaskets and O-rings.
–  Clean sealing surface for O-ring.
–  Coat O-ring with coolant, coolant → Electronic parts catalogue.
  A19-10720
–  Insert thermostat -4- in coolant pump housing -5- and swivel forwards slightly -arrow-.
–  Fit connection -3- carefully (insert centring pin -2- in guide -1-).
–  Install support for intake manifold → Rep. gr.24.
–  Install air pipes/hoses with plug-in connectors → Chapter.
–  Fill up with coolant → Anchor.
  A19-10721

Parts of cooling system (on body) > < Removing and installing coolant pump