Attention! The coolant is poisonous. It can not be poured in random places. To do this, you need to find out where the nearest collection point for special funds is located, or you can hand over the coolant at a recycling point.
When filling or replacing coolant, use G12 A8F antifreeze (G12+), approved for use by VW / AUDI. On the packaging of such antifreeze there is an indication that it meets the technical requirements «TL VW 774F».
G12+ concentrate may be mixed with G11 nG12 concentrates.
In the cooling system of vehicles with a coolant mixture based on improved antifreeze, only G12 antifreeze, which can be recognized by its red color, should be poured. Attention! If, by mistake, coolant was poured into the cooling system, the use of which is not allowed, then it should be drained, and the system should be flushed with clean water. Let the engine run for two minutes and then drain the water from the system. After that, blow the system through the expansion tank with compressed air to completely remove water from the system. After purging, screw a plug into the drain hole and fill in a mixture of water and G12 + antifreeze.
Attention! To top up the coolant, even during warmer months, use a mixture of G12+ antifreeze and clean water with a low lime content. Even in summer, the proportion of antifreeze in the coolant should not be less than 40%. For this reason, when pouring water into the cooling system, add antifreeze immediately.
Attention! The content of antifreeze should not exceed 60%. Otherwise, the degree of frost protection will be reduced and the cooling effect of the fluid will be impaired.
The content of antifreeze in the coolant
Concentration | up to -25°C | up to -35°C | up to -40°C | |||
G12+ | water | G12+ | water | G12+ | water | |
40% | 60% | 50% | 50% | 60% | 40% |
Drain
1. Jack up the car, place it on jack stands.
2. Vehicles with parking heater. Unscrew the bolts (see arrows in illustration) fastening the parking heater pipe to the noise insulating shield.
2.2. Unscrew the bolts (see arrows) fastening the parking heater pipe to the noise insulating shield. Vehicles with parking heater
3. Unscrew bolts/take out clamps and remove a mudguard of the engine.
4. Remove the cap from the coolant expansion tank.
Attention! With a hot engine, place a rag on top of the expansion tank before removing the expansion tank cap to prevent burns from hot coolant or steam. Remove the cover only when the coolant temperature is below +90°C.
5. Place a suitable container under the engine to collect the drained coolant.
6. Cars with a gasoline engine. Unscrew the stopper (see arrow in illustration) drain hole on the thermostat housing and drain the coolant.
2.6. Unscrew the stopper (see arrow) drain hole on the thermostat housing and drain the coolant
Attention! The cooling system of the diesel vehicles covered in this manual may or may not have an additional plugged drain hole. In this case, the coolant is drained through the hole for the coolant temperature sensor.
7. Vehicles with a diesel engine, the cooling system of which has an additional drain hole. Unscrew the plug from the coolant drain hole on the outlet pipe and drain the coolant.
8. Vehicles with a diesel engine, the cooling system of which does not have an additional drain hole. Remove bracket 1 that holds the coolant temperature sensor, remove the sensor and drain the coolant (see illustration).
2.8. Remove bracket 1 that holds the coolant temperature sensor, remove the sensor and drain the coolant. Vehicles with a diesel engine whose cooling system does not have an additional drain hole
9. Cars with a diesel engine. Unscrew the screw plug 2 and drain the coolant (see illustration 2.8).
10. Cars with a diesel engine. Disconnect the hose from the oil cooler by removing the clamp (see arrow in illustration) and drain the remaining coolant in the engine.
2.10. Disconnect the hose from the oil cooler by removing the clamp (see arrow) and drain the remaining coolant in the engine. Diesel vehicles
Refueling
11. Screw in the plug (see arrow illustration) drain hole, replacing the old sealing ring with a new one.
2.11. Screw in the stopper (see arrow) drain hole, replacing the old sealing ring with a new one
12. Screw the branch pipe VAG 1274/8 together with the extension VAG 1274/10 onto the filler neck of the expansion tank (see illustration).
2.12. Screw the branch pipe VAG 1274/8 together with the extension VAG 1274/10 onto the filler neck of the expansion tank
This is necessary to prevent splashing of coolant when starting the engine and to ensure that the prescribed amount of coolant is charged. When the correct level is reached, the coolant begins to flow out through the vents. If the nozzle is not available, then you can make it yourself. You can also unscrew the expansion tank and, without disconnecting the hoses, raise it by 10 cm, securing it with wire.
13. Loosen the clamp on the heater return hose, move the hose so that the air vent (see arrow in illustration) on the branch pipe was not closed with a hose.
2.13. Loosen the clamp on the heater return hose, move the hose until the air vent (see arrow) on the branch pipe was not closed with a hose
14. Top up with coolant until coolant flows out of the vent hole on the heater return hose. After that, slide the return hose onto the nozzle and secure with a clamp.
15. Cars with a gasoline engine. Unscrew the stopper (see arrow in illustration) vent hole on the hose of the left additional radiator to allow coolant to flow out. When coolant flows out of the hole without air bubbles, screw in and hand tighten the vent plug.
2.15. Unscrew the stopper (see arrow) vent hole on the hose of the left additional radiator to allow coolant to flow out. Cars with a gasoline engine
16. Cars with a gasoline engine. Unscrew the stopper (see arrow in illustration) vent hole on the right side radiator hose to allow coolant to drain out. When coolant flows out of the hole without air bubbles, screw in and hand tighten the vent plug.
2.16. Unscrew the stopper (see arrow) vent hole on the right side radiator hose to allow coolant to drain out. Cars with a gasoline engine
17. Establish a broad tank into place if it acted in film, and fix it with bolts.
18. Remove the ventilation device (see illustration 2.12) and screw the cap onto the filler neck of the expansion tank.
19 Turn on the passenger compartment heater or air conditioner by moving the switch to the heating position.
20. Start the engine and let it idle until the radiator warms up near the pipe to which the lower hose is connected.
21. Stop the engine.
22. Check the coolant level and top up if necessary. When the engine is warm, the coolant level should be above the mark «MAX» on the expansion tank, and with a cold engine - between the marks «MIN» And «MAX» on the expansion tank (see illustration).
2.22. When the engine is warm, the coolant level should be above the mark «MAX» on the expansion tank, and with a cold engine - between the marks «MIN» And «MAX»
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