SEAT Workshop Service and Repair Manuals

Draining off and filling coolant t  Empty → Anchor t  Refill → 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	Measuring tool -T10007-, see equivalent → Anchor

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

t	Hose -V.A.G 1274/10-, see equivalent → Anchor

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

t	Tray -VAS 6208-, see equivalent → Anchor

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

Empty   Note Collect drained coolant in a clean container for re-use or disposal.   WARNING Hot vapour/hot coolant may escape when opening expansion tank. Cover cap with cloth and open carefully. –  Open cap on coolant expansion tank.

–  Release quick-fasteners -1- and -2- and take off front noise insulation.

–  Place the drip tray -VAS 6208- under the engine. –  Unscrew the drain plug -arrow- at coolant hose (bottom left) and drain off coolant. reset to zero   Note t  The cooling system is filled all year round with a mixture of water and coolant additive (combined anti-freeze and corrosion protection agent). t  Only the coolant G12+ may be used according to the standard TL VW 774 F. Other coolant additives could seriously impair in particular the anti-corrosion properties. The resulting damage could lead to loss of coolant and consequently to serious engine damage. t  Coolant additive G12+ can be mixed with additives G11 and G12. t  G 12+ and coolant additives marked "meeting specification TL 774 F" prevent frost and corrosion damage as well as scaling. These also raise the boiling temperature. For these reasons the cooling system must be filled all year round with the correct antifreeze and anticorrosion 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  Frost protection is required down to about -25 ℃ (in countries with arctic climate: down to about -35 ℃). 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, 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 percentage is higher then the cooling and anti-freeze capacities are reduced. t  Use only clean water for mixing the coolant. t  If the radiator, heat exchanger, cylinder head, cylinder head gasket or cylinder block has been replaced, do not re-use used coolant. t  Contaminated or dirty coolant must not be used again. t  For testing frost component in the cooling system, use the Refractometer -T10007- for the coolant additive G12+. t  Secure all screw joints with serial hose clips → Spare parts catalogue.

–  Close drain screw -arrow-.

–  Fill at least 8 litres of pre-mixed coolant in the correct mixing ratio in the coolant tank by using the coolant filling device -VAS 6096-: t  G12+ (40%) and water (60%) for anti-freeze protection down to - 25ºC t  G12+ (50%) and water (50%) for anti-freeze protection down to - 35ºC t  G12+ (60%) and water (40%) for anti-freeze protection down to -40ºC –  Screw on the Adapter -VAG 1274/8- on the coolant compensation container. –  Fit the coolant charger -VAS 6096- onto the adaptor -VAG 1274/8-. –  Run vent hose -1- into a small container -2-. As well as air, a small quantity of coolant will be expelled and must be collected. –  Close the two valves -A- and -B- (levers at right angles to direction of flow). –  Connect hose -3- to compressed air. l  Pressure: 6 ... 10 bar

–  Open valve -B- (lever arm pointing in direction of flow). The ejector generates 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 coolant charger -VAS 6096- hose can fill with coolant. –  Close valve -A- again. –  Leave valve -B- open for another 2 minutes. The nozzle creates more pressure in the cooling system. l  The pointer of the indicator must remain in the green zone. –  Close valve -B-. l  The needle on the gauge should stop in the green zone. The vacuum level in the cooling system is then sufficient for subsequent filling. If the pointer is below the green zone, repeat the process. If the vacuum level drops, there is a leak in the cooling system. –  Disconnect the compressed air hose. –  Open valve -A-. The vacuum in the cooling system acts by sucking the coolant in the filling device for cooling systems -VAS 6096-, which fills the cooling circuit. –  Remove the coolant charger -VAS 6096- from the coolant expansion tank.

–  Fit pipe -VAG 1274/10- onto adapter -V.A.G 1274/8-.

–  Release coolant hose going to heat exchanger and pull back hose until bleeder hole in hose -arrow- is no longer blocked by the connection. –  Top up the coolant until it emerges from the bleed hole in the coolant hose without bubbles. –  Push coolant hose onto connection and secure with hose clip. –  Screw on cap on coolant expansion tank. –  Start engine. –  Set heater/air conditioner to „HI“ on both sides. –  Run the engine for 3 minutes at 2000 rpm. –  Allow engine to run at idling speed until two large coolant hoses at main radiator become warm. –  Run the engine for 1 minute at 2000 rpm. –  Switch off ignition and allow engine to cool down.

–  Check the coolant level. l  The coolant level must be at the MAX marking when the engine is cold. l  The coolant level can be above the MAX marking when the engine is hot from operation.