SEAT Workshop Service and Repair Manuals

Draining off and filling coolant Check the tool and equipment equivalence table according to the applicability between Seat / VW / Audi / Skoda → Chapter

Special tools and workshop equipment required

t	Refractometer -T10007A-, see equivalent → Anchor

t	Adapter -VAG 1274/8-, see equivalent → Anchor

t	Coolant charger -VAS 6096-, see equivalent → Anchor

t	Collecting tray -VAS 6208-, see equivalent → Anchor

t	Pliers for spring-loaded band-type clamps -VAS 6499-, see equivalent → Anchor

t	Engine sealing plug set -VAS 6122-, see equivalent → Anchor

Draining off   Note t  The drained coolant must be collected in a clean container, whether for disposal or recycling. t  Observe relevant disposal regulations.   WARNING Steam may be released when opening the expansion tank. Wear safety goggles and appropriate clothing to avoid injury to eyes and burns. Cover the cap with a cloth and open carefully. –  Open the cap of the coolant expansion tank. –  Remove the centre soundproofing → Bodywork, exterior assembly work; Rep. Gr.50.

–  Open the drain plug -arrow- of the radiator; fit, if necessary, an additional tube onto the sleeve.

–  For vehicles without drain plug, pull out the retaining clip -arrow- and detach coolant hose from radiator. Filling   Note t  With the range of models later than 2008, only Gº12º plus-plus anti-freeze agent must be used according to standard TL VWº774ºG. t  The range of models up to and including 2007 can use Gº12º plus anti-freeze agent, according to TLºVWº774ºF and Gº12º plus-plus, according to TLºVWº774ºG. t  G 12 plus-plus can be mixed with G 12 plus antifreeze agent. Both agents are coloured mauve. t  “TLºVWº774ºG” or “TLºVWº774ºF” anti-freeze agents prevent damage from rust, freezing or lime sediment, and also raise the boiling point of the coolant. For these reasons, the cooling system must be filled all year round with an anti-freeze and anti-corrosion additive. t  Thanks to this rise in the boiling point, the coolant guarantees good running, even when the engine undergoes heavy strain, especially in countries with tropical climates. t  The antifreeze protection must be guaranteed to approx. - 25 ºC (down to approx. -35°C in countries with arctic climate). t  The concentration of the coolant must not be reduced by adding water in summer or in countries with hot climates. The amount of anti-freeze in the coolant must be at least 40 %. t  If the climate requires a stronger anti-freeze, the anti-freeze agent can be increased, but only up to 60% (anti-freeze protection down to approx. -40ºC). If the proportion is greater, the cooling and anti-freeze protection capacity is reduced. t  If radiator, heat exchanger, cylinder head or cylinder head gasket has been replaced, do not reuse old coolant. Recommended mixture ratios:

Anti-freeze protection up to	Anti-freeze ratio	G 12 plus-plus → Note	Quantity of water → Note
-25 °C -35 °C	40 % 50%	2.25 l 2.8 l	3.35 l 2.8 l

1)  Coolant quantity may vary depending on the vehicle equipment –  Place the coolant hose into the radiator, taking into account its fitting position. –  Install the centre soundproofing → Bodywork, exterior assembly work; Rep. Gr.50. With cooling system filler -VAS 6096-: –  Fit the adaptor -VAG 1274/8- to the coolant expansion tank. –  Fill the coolant circulation using the cooling system filler -VAS 6096- → Instruction manual for the cooling system filler for the coolant circulation VAS 6096

–  Fill the compensation tank of the cooling system charge unit -VAS 6096- with at least 8 litres of premixed coolant (according to recommended ratio). Without cooling system filler -VAS 6096-:

–  Gradually add coolant until the top mark on the shaded area of the expansion tank is reached. –  Close expansion tank. –  Start the engine and keep the engine speed at approx. 2000 rpm for approx. 3 minutes. –  Allow the engine to run idle until radiator fan cuts-in. –  Cooling liquid: check and top up if necessary When the engine is at normal operating temperature, the coolant level must be at the top mark, and when the engine is cold, in the middle of the shaded area. With or without cooling system filler -VAS 6096- –  Close expansion tank. –  Deactivate the heating. –  Start the engine and keep the engine speed at approx. 2000 rpm for approx. 3 minutes. –  Let the engine run until radiator fan cuts in.   WARNING Steam may be released when opening the expansion tank. Wear safety goggles and appropriate clothing to avoid injury to eyes and burns. Cover the cap with a cloth and open carefully. –  Cooling liquid: check and top up if necessary When the engine is at normal operating temperature, the coolant level must be at the top mark, and when the engine is cold, in the middle of the shaded area.