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Removing and installing pump for exhaust gas recirculation coolerV400 > < Removing and installing thermostat

A4 Mk3

Removing and installing 4/2-way valve with thermostat
Removing and installing 4/2-way valve with thermostat
Special tools and workshop equipment required
   
t  Multi-point bit XZN 8 -T10445-
Removing
  Note
t  The thermostat is located in the interior of the 4/2-way valve and cannot be renewed separately.
  W00-10887
t  Remove engine cover panel -arrows-.
  A10-11050
t  Open hose clips -arrows- and detach air hose.
  A21-10302
t  Unplug electrical connector -2-.
t  Remove nut -1- and move bracket with electrical connector to one side.
–  Drain coolant → Chapter.
  A23-10587
–  Detach coolant hoses from connections -A, B and D-.
–  Remove bolt -2- with multi-point bit XZN 8 -T10445-.
–  Remove bolts -1-.
–  Pull valve out of cylinder block and detach connection -C- from coolant pipe to the left.
Installing
l  Tightening torque → Chapter
Installation is carried out in the reverse order; note the following:
  Note
Fit new O-ring.
–  Install throttle valve module -J338- → Rep. gr.23.
–  Install alternator → Electrical system; Rep. gr.27.
  A19-10998

Removing and installing pump for exhaust gas recirculation coolerV400 > < Removing and installing thermostat