SEAT Workshop Service and Repair Manuals

Draining and filling cooling system t  Coolant: Draining → Anchor t  Coolant: filling → 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	Adapter -VAG 1274/8-, see equivalent → Anchor

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

t	Base -VAG 1921-, see equivalent → Anchor

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

t	Measuring tool -T10007-, see equivalent → Anchor

Draining coolant   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 cap on coolant expansion tank.

–  Unscrew the securing bolts -arrows- and remove the engine soundproofing..

–  Release the quick connection -arrow-, and remove the coolant hose from the radiator. Engine code BWJ

–  The oil radiator hose -arrow- must also be detached. Engines CDLA, CDLD

–  Disconnect bottom coolant hose leading to continued coolant circulation pump -V50--arrow- and drain off coolant. Coolant: top up.   Note t  When replacing the expansion tank and during maintenance work, care must be taken that the silicate cartridge → Electronic parts catalogue is always located in the expansion tank. The silicate cartridge must not be removed. t  With vehicles from model year 2008, only G 12 plus-plus anti-freeze agent must be used according to standard TL VW 774 G. 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  The G 12 plus-plus can be mixed with G 12 plus that has been used until now. 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 this reason, the cooling system must be filled with coolant additive all year round. 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 ℃ 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 a higher anti-freeze is required due to the climate, the percentage of the anti-freeze additive can be increased, but only up to 60 % (anti-freeze up to approx. -40 °C). If the proportion is greater, the cooling and anti-freeze protection capacity is reduced. t  The refractometer -T10007- is recommended for determining the current anti-freeze density. 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 proportion	G 12 plus-plus 1)	Water 1) 2)
-25 ℃  -35 ℃	40 % 50 %	3.2 l  4.0 l	4.8 l  4.0 l

1) The quantity of coolant can vary depending upon the vehicle specifications. 2) Always use clean tap water.

–  Mount the soundproofing of the engine and insert the securing bolts -arrows-. 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 VAS 6096 Without cooling system charge unit -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 engine to run until fan starts up.   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. –  Check coolant level and top up any missing coolant, if necessary. When the engine is at normal operating temperature, the coolant filling level must be at the top mark, and when the engine is cold, in the middle of the shaded area.