SEAT Workshop Service and Repair Manuals

Filling   Note t  Only use antifreeze additive G 12 according to specification TL VW 774 F. Identification: purple colour. t  The purple coloured G 12 (according to specification TL VW 774 F) may be mixed with the earlier red-coloured G 12 antifreeze additive. t  G 12 is never to be mixed with other antifreeze additives. t  If fluid in expansion tank is brown, G 12 has been mixed with a different type of coolant. In this case all the coolant should be replaced. t  The G 12 and the anti freeze with the indication “according to TL VW 774 F” avoid damage due to corrosion, freezing or lime sedimentation. They also increase the boiling temperature of the liquid 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 °C) 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 -G12- 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  The measuring tool -T10007- is recommended for determining the current anti-freeze density. 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. Recommended mixture ratios:

Anti-freeze protection until	Antifreeze percentage	G 12 → 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.

–  Close the drainage bolt for the cooling liquid -arrow-.

–  Install the lower engine protection → Bodywork, exterior fitting work; Rep. Gr.50 If the charger -VAS 6096- is not used

–  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. –  Switch off engine. –  Check coolant level and top up if necessary. t  When the engine is hot, the coolant level should be at -max-. t  When the engine is cold, the level should be between -min- and -max-.   DANGER! Hot steam or hot coolant can escape when the cap on the expansion tank is opened. Cover the cap with a cloth, and open it carefully. If the charger -VAS 6096- is used

–  Fill coolant reservoir -VAS 6096/1-with at least 8 l premixed coolant of the recommended mixture ratio → Anchor. –  Fit adapter for cooling system tester -VAG 1274/8-to the coolant expansion tank. –  Fit charger -VAS 6096- onto adaptor -VAG 1274/8-. –  Introduce air discharge hose -1- in a small recipient -2-. When flashing off a small quantity of coolant is carried away, which is to be collected. –  Connect both valves -A- and -B- (lever arm transverse to direction of flow). –  Connect hose -3- to compressed air. l  Pressure: 6 ... 10 bar pressure.

–  Open valve -B- (lever arm pointing in direction of flow). The suction jet pump creates a vacuum in the cooling system. l  The display instrument needle must move to the green area. –  Also briefly open valve -A- (turn lever in direction of flow) so that the charger -VAS 6096- hose can fill with coolant. –  Close the valve again -A-. –  Leave valve -B- open for further 2 minutes. l  The suction jet pump creates further vacuum in the cooling system. l  The display instrument needle must remain in the green area. –  Close valve -B-. l  The display instrument needle must remain in the green area so that the vacuum in the cooling system is sufficient to continue with the refilling. If the needle is below the green area, repeat the procedure. If the vacuum drops the cooling system is leaking. –  Pull out pressure hose. –  Open valve -A-. The vacuum in the cooling system makes that coolant is sucked out of the coolant reservoir -VAS 6096/1- and the cooling system is filled.

–  Check coolant level and fill coolant up to -max.- mark. –  Close expansion tank. –  Start engine and keep engine speed at approx. 2,000 rpm for 3 minutes. –  Run engine until radiator fan cuts in. –  Switch off engine. –  Check coolant level and top up if necessary. t  When the engine is hot, the coolant level should be at -max-. t  When the engine is cold, the level should be between -min- and -max-.   DANGER! Hot steam or hot coolant can escape when the cap on the expansion tank is opened. Cover the cap with a cloth, and open it carefully.