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Testing coolant thermostat > < Removing and installing coolant regulator

Octavia Mk2

Removing and installing 4/2 way valve with coolant regulator
Removing and installing 4/2 way valve with coolant regulator
(Fabia II as of 06.10, Roomster as of 06.10, Octavia II as of 06.10, Superb II, Yeti, Rapid)
Special tools and workshop equipment required
t  Catch pan, e.g. -VAS 6208-
t  Pliers for spring strap clamps
Removing
–  Drain coolant → Chapter.
–  Remove the generator → Electrical System; Rep. gr.27.
–  Release screws -arrows-.
   
Vehicles Octavia, Superb II, Yeti
–  Expose coolant hose -1-.
–  Loosen hose clamp -3-.
–  Disconnect the plug -2- at the charge pressure sender -G31- with intake air temperature sender -G42- and remove the right charge air pipe.
  S10-0415
Vehicles Fabia, Roomster, Rapid
–  Loosen hose clamp -2-.
–  Disconnect the plug -1- at the charge pressure sender -G31- with intake air temperature sender -G42- and remove the right charge air pipe.
Continued for all vehicles
  S13-0738
–  Disconnect the plug -2- from the throttle valve control unit -J338-.
–  Unscrew the top fixing screw of the guide pipe for the oil dipstick -4-.
–  Remove throttle valve control unit -J338- and take off.
  N15-10502
–  Remove the coolant hoses, to do so slacken the hose clamps -A, B and D-.
–  Unscrew bolts -3-.
–  Remove the 4/2 way valve with coolant regulator from the cylinder block and then detach it from the front coolant pipe.
Install
Installation is performed in the reverse order, pay attention to the following points:
  Note
t  Replace O-ring.
t  Hose connections as well as charge air pipes and charge air hoses must be free of oil and grease before being installed.
t  Observe the instructions for installing the charge air hoses and tightening torques of the screw clamps → Chapter.
t  Secure all hose connections with prescribed hose clamps → Electronic Catalogue of Original Parts.
  N19-10386
–  Moisten new O-ring -1- with coolant.
–  First of all position the 4/2 way valve with coolant regulator with the connection fitting -C- on the front coolant pipe and subsequently insert it into the cylinder block.
Screw in fixing screws -3- for 4/2 way valve with coolant regulator -2-.
t  Tightening torque: 15 Nm.
–  Connect the coolant hoses to the connection fittings -A, B and D-.
–  Top up with coolant:
t  Octavia II, Superb II, Yeti → Chapter.
t  Fabia II, Roomster, Rapid → Chapter.
  N19-10386

Testing coolant thermostat > < Removing and installing coolant regulator