Replacing antifreeze (coolant) with a VAZ 2101-2107
According to the recommendation of the Avtovaz manufacturer, the coolant in the VAZ 2101-2107 engine must be replaced every 2 years or 45 km. Of course, many owners of "classics" do not adhere to this rule, but in vain. Over time, the cooling properties and anti-corrosion deteriorate, which can lead to corrosion in the channels of the block and cylinder head.
In order to drain antifreeze or antifreeze on a VAZ 2107, you will need the following tool:
- Open-end wrench for 13 or head
- Union for 12
- Flat or Phillips screwdriver
So, before starting this work, it is necessary that the temperature of the engine be minimal, that is, it is not necessary to warm it up before that.
First of all, we install the car on a flat, flat surface. The heater control damper must be in the “hot” position. It is at this moment that the stove valve is open and the coolant must completely drain from the heater radiator. Open the hood and unscrew the radiator cap:
We also immediately unscrew the plug from the expansion tank so that the coolant drains from the block and radiator faster. Then we substitute a container of about 5 liters under the drain hole of the cylinder block and unscrew the bolt, as shown in the photo below:
Since it is rather inconvenient to substitute a large container, I personally took a 1,5 liter plastic bottle and substituted it:
We also unscrew the radiator cap, and wait until all the antifreeze or antifreeze drains from the cooling system:
After that, we twist back all the plugs, except for the filler, and pour a new antifreeze into the radiator up to the upper edge. After that, it is necessary to pour coolant into the expansion tank. To avoid the formation of an air lock in the cooling system, you need to disconnect the expansion tank hose, as shown in the picture below:
Now we lift the expansion tank up and fill in a little antifreeze so that it pours through the other end of the hose. And at this time, without changing the position of the tank, we put the hose on the radiator. We continue to hold the tank at the top and fill it with antifreeze to the required level.
We start the engine and wait until the radiator fan works. Then we turn off the engine, as the fan stops working, and after the engine has completely cooled down, we check again the level of antifreeze in the expander. Top up if necessary!
