Audi:: A3:: Replacement of cooling liquid

4.1.2. Replacement of cooling liquid

Cooling liquid has to be replaced only after repair of the cooling system when liquid merged. Replacement of liquid in the course of service is not provided. If at repair the head of cylinders, sealing laying, a radiator, the heat exchanger or the engine were replaced, it is necessary to replace cooling liquid surely. It needs to be executed since in process extra earnings on engine elements from light alloys are besieged protective additives and, thus, the corrosion protective layer is formed. If liquid was used earlier, then its structure does not allow to create a necessary protective layer on new elements of the engine.

ATTENTION

Cooling liquid is slightly poisonous and it cannot be poured out in the places which are not intended for its utilization. On places of utilization of liquid have to inform local authorities.

REMOVAL

ATTENTION

At rise and installation of the car on supports there is a danger! Therefore previously get acquainted with Poddomkrachivaniye's subsection of the car.

PERFORMANCE ORDER

1. Lift and install the car on supports.
2. Remove the lower cover of a motive compartment, at the same time address the subsection Removal and installation of the lower cover of a motive compartment.
ATTENTION Before an otryvaniye of a broad tank on the hot engine put on it a thick rag to exclude a burn hot liquid and steam. Tear off a stopper of a tank only at a temperature of cooling liquid below +90 °C.
3. Open a stopper of a broad tank.
4. Substitute pure capacity under a radiator.
	5. Open a drain stopper (the shooter on an illustration) turn on the left. It is recommended to put on a hose a drain branch pipe. Collect the merging liquid.
6. Diesel and some petrol engines: In addition remove a hose of cooling liquid from below at an oil radiator / cooling liquid (oil heater). For this purpose open a collar by means of the HAZET 798-5 tool and shift it completely back. The oil heater is at a flange of an oil filter. Completely merge oil.

GAS STATION
7. Make mix of 50% of water and 50% of means for protection against freezing and corrosion, at the same time address the subsection Antifreeze - a security measure from freezing.
8. Put on a hose of cooling liquid the oil heater and fix it by a collar.
9. Tighten a drain stopper on a radiator.
10. Establish the lower cover of a motive compartment, at the same time address the subsection Removal and installation of the lower cover of a motive compartment.
11. Lower the car on wheels.
	12. Slowly fill system to the mark MAX in a broad tank.
13. Start the engine and let's it work on the raised turnovers of 1500 rpm within about 2 min. At the same time fill a broad tank with liquid to an overflow opening.
14. Close a broad tank.
15. Start the engine so that the electric fan turned on.
16. Stop the engine and let's it be cooled.
17. Check the level of cooling liquid and if necessary add. At the warm engine the level of liquid has to reach the mark MAX, at cold has to lie between the marks MAX and MIN.