Get Checking and refilling levels -> Coolant Guide for Seat Leon 4 Door Second Generation (2007-2011)

Checking and refilling levels212

• Never pour oil down drains or into the ground.

• Use a suitable container when draining the used oil. It has to be large

enough to hold all the engine oil

Coolant

Coolant specifications

Coolant is a mixture of water and at least 40% coolant addi-

tive.

The cooling system must be filled with a mixture of water and at least 40 % of

our coolant additive G 12+ or an additive with the specification TT-VW 774 F

(it is dyed purple). This mixture gives the necessary frost protection down to

-25°C and protects the alloy parts of the cooling system against corrosion. It

also prevents scaling and raises the boiling point of the coolant.

The concentration of coolant must always be at least 40% - even if frost

protection is not required.

If greater frost protection is required in very cold climates, the proportion of

the antifreeze additive G 12+ can be increased. However, the percentage of

coolant additives should not exceed 60%, as this would reduce the frost

protection. It would also reduce the cooling effect. A mixture with 60%

coolant additive will give frost protection to approx. -40°C.

WARNING

• The coolant additive is toxic. There is a toxic risk. Always keep the

coolant additive in the original container which should be stored out of the

reach of children. The same applies to coolant which you have drained off.

• The coolant additive G 12+ must be added in sufficient quantities to

provide anti-freeze protection at the coldest ambient temperatures that

can be expected. At extremely cold ambient temperatures, the coolant

could freeze, causing the vehicle to breakdown. As the heater would also

not work in this situation, there is a risk of suffering exposure!

Caution

• Other additives may give considerably inferior corrosion protection. The

resulting corrosion in the cooling system can lead to a loss of coolant,

causing serious damage to the engine.

• The coolant additive G 12+ (purple) can be mixed with the additive G 12

(red) or G 11. Never mix G12 (red colour) with G 11.

WARNING (continued)

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Checking and refilling levels 213

Safety First Operating instructions Practical tips Technical Data

Checking the coolant level and topping up 

The correct coolant level is important for fault-free func-

tioning of the engine cooling system.

Before opening the bonnet, read and observe the warnings ⇒ in

“Safety instructions on working in the engine compartment” on

page 205.

Opening the coolant expansion tank

– Switch off the engine and allow it to cool.

– To prevent scalding, cover the cap on the expansion tank with a

thick cloth and carefully unscrew the cap ⇒ .

Checking coolant level

– Look into the open coolant expansion tank and read off the

coolant level.

– If the level is underneath the “MIN” mark, top up with coolant.

Topping up coolant

–Only use new coolant.

– Do not fill above the “MAX” mark.

Closing the coolant expansion tank

–Screw the cap on again tightly.

The position of the coolant expansion reservoir is shown in the corresponding

engine compartment diagram ⇒ page 263.

Make sure that the coolant meets the required specifications ⇒ page 212.

Do not use a different type of additive if coolant additive G 12+ is not avail-

able. In this case use only water and bring the coolant concentration back up

to the correct level as soon as possible by putting in the specified additive

⇒ page 212.

Always top up with new coolant.

Do not fill above the “MAX” mark. Otherwise the excess coolant will be forced

out of the cooling system when the engine is hot.

The coolant additive G 12+ (dyed purple) may be mixed with G 12 (dyed red)

and also with G 11.

WARNING

Any work carried out in the engine compartment or on the engine must be

carried out cautiously.

• When working in the engine compartment, always observe the safety

warnings ⇒ page 205.

Fig. 141 In the engine

compartment: Coolant

expansion tank cap

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Checking and refilling levels -> Coolant for Your Seat Leon 4 Door Second Generation (2007-2011)

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