seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Radiator: removing and fitting > < Diagram of coolant hose connections
Coolant: Draining and filling
Coolant: Draining and filling
t  Draining → Anchor
t  Filling → Anchor
Consult the equivalence table for tools and equipment according to applicability between Seat / VW / Audi / Skoda → Chapter.
   
Special tools and workshop equipment required
t  Torque wrench kit -SAT 8010-, see equivalent → Anchor
t  Measuring tool -T10007-, see equivalent → Anchor
t  Tray -T20173-, see equivalent → Anchor
t  Pliers -T20174-, see equivalent → Anchor

Draining
  WARNING
Hot steam may be emitted on opening the expansion tank. Cover the sealing cap with a cloth and open it carefully.
–  Open the cap on the coolant expansion tank.
   
–  Unscrew the fastening bolts -arrows- and remove the engine noise damping cover.
–  Place the drip tray -T20173- under the engine.
  N10-10175
–  Release the clamp -1- from the lower radiator hose using the pliers -T20174-.
  Note
Observe disposal regulations!
Filling
  Note
t  Only use G 12 anti-freeze additive in line with Standard TL -VW 774 F-. Identification: colour lilac
t  The lilac G 12 (as per Standard TL -VW 774 F-) can be mixed with the red G 12 additive previous used.
t  G 12 is never to be mixed with other antifreeze additives.
t  If the fluid in expansion tank is brown, G 12 has been mixed with other anti-freeze additives. In this case the coolant must be changed.
t  G 12 and anti-freeze additives marked "In accordance with -VW 774 F-" prevent frost and corrosion damage, scaling and also raise boiling point of coolant. For this reason, the cooling system must always have the prescribed mixture of antifreeze and anti-rust.
t  Especially in countries with tropical climates, antifreeze helps to guarantee reliability of running when the engine is submitted to high stress, thanks to the higher boiling point that it provides.
t  Antifreeze protection must be guaranteed to approx. -25 ºC (in countries with arctic climates, to approx. -35 ?).
t  The coolant concentration must not be reduced by adding water in hot seasons or in countries with hot climates. The percentage of antifreeze additive must be at least 40%.
t  If, for reasons of climate, greater antifreeze protection is needed, the G 12 percentage can be increased, but only up to 60% (antifreeze protection to -40 ºC). If the ratio is greater, the cooling and antifreeze protection capacity is reduced.
t  Never re-use the coolant if the following have been replaced: the radiator, the heat exchanger, the cylinder head or the cylinder head gasket.
  A21-10051
t  The measuring tool -T10007- is recommended for determining the current anti-freeze density.
Recommended mixture ratios:
  W00-0689
Anti-freeze protection untilAnti-freeze ratioG 12 → NoteQuantity of water → Note
-25 ?
-35 ?
40 %
50 %
2.0 litre
2.5 litre.
3.0 litre
2.5 litre.

1)  Quantity of coolant: 5.0 litres; It may vary according to the vehicle equipment.
   
–  Connect the clamp -1- to the lower radiator hose using the pliers -T20174-.
  A21-10051
–  Fill with coolant up to max. mark on expansion tank.
–  Close expansion tank.
–  Start engine and keep engine speed at approx. 2,000 rpm for 3 minutes.
–  Run engine until radiator fan cuts in.
–  Check coolant level and top up any missing coolant, if necessary. If the engine is warm, coolant level must be at max. mark; if cold, between min. and max. marks.
  E00-0154
–  Screw in the fastening bolts -arrows- on the engine noise damping cover.
  N10-10175

Radiator: removing and fitting > < Diagram of coolant hose connections