SEAT Workshop Service and Repair Manuals

4/2-way valve with thermostat: Removing and installing t  4/2-way valve with thermostat: Removing → Anchor t  4/2-way valve with thermostat: Installing → Anchor. Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter. Special tools and workshop equipment required

t  Base -VAS 6340-, see equivalent → Anchor

t  Pliers for spring-loaded band-type clamps -VAS 6499-, see equivalent → Anchor t  Torque wrench -VAG 1331-, see equivalent → Anchor. t  Lever -80 200-, see equivalent → Anchor   Note The thermostat is located within the 4/2-way valve and cannot be replaced individually.

Removing . –  Remove centre noise insulation -fastening points 1 ... 3-. –  Removing cowling with radiator fan -V7- → Chapter.

–  Remove the engine cover upwards -arrows-.

–  Unplug connector -1- from air mass meter -G70-. –  Separate the hose -3-. –  Remove the air intake hose, and release the hose clip -2-. –  Unscrew the bolt -4- and remove the air filter housing.   WARNING Observe safety precautions when disconnecting the battery → Electrical system; Rep. gr.27. –  With the ignition switched off, disconnect the battery earth lead → Electrical system; Rep. gr.27. –  Remove battery and battery tray → Electrical system; Rep. gr.27. –  Remove the alternator → Electrical system; Rep. gr.27.

–  Unclip wiring harness from retainer -arrow-.

–  Move wiring harnesses -arrows- and electrical connector -1- clear at bracket.

–  Unscrew bolts -2-, -5- and -arrows-. –  Use removal lever -80 - 200- to move the electrical wiring and hoses at air pipe (left-side) clear. –  Release the hose clamp -3- and remove the air conduit.   Note Ignore items -1- and -4-. –  Drain coolant → Chapter.

–  Release hose clips -1- and detach coolant hoses.   Note Disregard items -2-, -3- and -4-.

–  Remove the electric connector -1- of the Hall sender -G40- from the bracket. –  Undo the screws -arrows- and remove the coolant pipe from the 4/2-way valve to the left and leave in the installation position.   Note Ignore items -2- and -3-.

–  Unscrew bolts -arrows-. –  Lay the coolant hose -3- free. –  Release the hose clamp -2-. –  Unplug electrical connector -1- at charge air pressure sender -G31-/charge air pressure sender -G42- and remove the right air intake pipe.

–  Pull out the dipstick a little and unscrew the bolt -1-. –  Hang out the clip -2- using the lever -80 200-. –  Pull oil dipstick guide tube off cylinder block upwards and push to side.

–  Remove bolts -2-. –  Remove the coolant hoses; release the hose clips -1-, -3- and -4- for this purpose. Remove the 4/2-way valve with thermostat. Fitting . l  Tightening torque → Chapter Installation is carried out in the reverse order; note the following: –  Install the guide tube for the dip stick. –  Install the front coolant pipe. –  Install the air hoses –  Install the intake manifold. –  Electrical connections and routing → Current flow diagrams, Electrical fault finding and Fitting locations. –  Install the battery socket and battery → Electrical system; Rep. gr.27. –  Install the air filter housing. –  Install air hoses with screw clamps → Chapter –  Fill up with coolant → Chapter.