Replacing antifreeze VAZ 2110

When replacing antifreeze with a VAZ 2110, several rules must be observed. The engine must be cold, antifreeze is a toxic liquid, when working with it, it is necessary to avoid contact with eyes, mouth, prolonged contact with skin.

Antifreeze, coolant (antifreeze) is a special composition of automotive fluid based on ethylene glycol. It is used in the cooling system of an internal combustion engine (ICE) for operation at low ambient temperatures. There can be several reasons for replacing antifreeze:

• car mileage, 75 - 000 km;
• time interval from 3 to 5 years (it is recommended to check the condition of the fluid in a car service with a special device every year before the start of the winter season);
• replacement of one of the components of the cooling system, water pump, pipes, radiator, stove, etc., with such replacements, the antifreeze is still drained from the cooling system, and it makes sense to fill in a new one.

This material will help you understand the engine cooling system: https://vazweb.ru/desyatka/dvigatel/sistema-ohlazhdeniya-dvigatelya.html

Cooling system VAZ 2110

Operating procedure

Draining old coolant

If the replacement is carried out in an elevator or bay window, the engine protection, if any, must be removed. When replacing without a pit, you can not remove the protection, otherwise the old antifreeze will get into the protection. There is nothing dangerous about this, but a few days after the replacement, an antifreeze smell may appear until it evaporates. Replaced the drain pan under the lower right side of the radiator if conditions permit.

If you do not change it in an equipped place and the old antifreeze is not needed, you can simply drain it to the ground. Many people advise first opening the cap of the expansion tank, then unscrewing the cap at the bottom of the radiator to drain, but in this case, the old high-pressure antifreeze, especially if the engine has not cooled completely, will pour out the radiator. It is more reliable and more convenient to first unscrew the cap (plastic lamb) of the radiator, the old antifreeze will flow out in a thin stream, then carefully unscrew the cap of the expansion tank, so due to the tightness in the cooling system, you can adjust the antifreeze drain pressure.

Draining antifreeze VAZ 2110

After draining the antifreeze from the radiator, we need to drain the liquid from the cylinder block. The peculiarity of draining antifreeze on the VAZ 2110 from the cylinder block is that the block plug is closed by an ignition coil (in a 16-valve injection engine). To do this, we need to disassemble it, with a 17 key we unscrew the lower screw of the coil support, with a 13 key we unscrew the side and central screws of the support and move the coil to the side. Using a 13 key, unscrew the drain plug from the cylinder block. To more completely remove the old antifreeze, you can connect an air compressor and supply air under pressure through the filler neck of the expansion tank.

We twist the cylinder block plug and the radiator plug (the radiator plug is plastic with a rubber gasket, it is tightened by hand without excessive effort, for reliability, you can cover the threads of the plug with sealant). Replace ignition coil.

Filling new coolant

Before pouring new antifreeze into the VAZ 2110, it is necessary to disconnect the heating hose from the throttle valve (on an injection engine), or the hose from the carburetor heating nozzle (on a carburetor engine) so that excess air leaves the cooling system. Pour new antifreeze up to the top of the expansion tank rubber strip bracket. We connect the hoses to the throttle or to the carburetor, depending on the model. Close the expansion tank cap tightly. Turned on the tap of the stove in the cabin for hot.

Pouring antifreeze on the VAZ 2110

We start the engine. Immediately after starting the VAZ 2110 engine, you need to pay attention to the level of antifreeze in the expansion tank, as it can immediately fall, which may mean that the water pump has pumped coolant into the system. We turn off the engine, fill up to the level and start again. We warm up the car. During warm-up, they checked for leaks in the engine compartment, in places where hoses and plugs were removed. We control the temperature of the engine.

When the operating temperature is within 90 degrees, turn on the stove, if it heats with hot air, turn it off and wait for the engine cooling fan to turn on. With the fan turned on, we wait for it to turn off, turn off the engine, wait 10 minutes until the engine cools down a bit, unscrew the plug of the expansion tank, check the coolant level, top up if necessary.

Instructions for replacing the expansion tank on VAZ 2110-2115 vehicles can be found here: https://vazweb.ru/desyatka/zamena-rasshiritelnogo-bachka-vaz-2110.html

Replacement Features

If there are small leaks in the engine cooling system, and the car owner periodically tops up with water or antifreeze from different manufacturers, the old coolant may oxidize. Foreign bodies may appear in the form of small chips and rust, which, by the way, can lead to failure of the main elements of the cooling system, water pump, thermostat, stove tap, etc.

Flushing the cooling system VAZ 2110

In this regard, when replacing the old antifreeze in this state, it is necessary to flush the system. This can be done with various additives, which is not always beneficial for the cooling system. Poor-quality cleaning additives not only cannot help, but also disable the components of the cooling system. Therefore, it is necessary to use high-quality additives and not save.

A detailed description of the stove malfunction is presented here: https://vazweb.ru/desyatka/otoplenie/neispravnosti-pechki.html

You can also flush the system naturally with distilled water. After the procedure for draining the old antifreeze, water is poured. The machine is idle for 10-15 minutes, then drained again and filled with fresh antifreeze. In case of strong oxidation, the procedure can be repeated.

There is a cheaper and easier way, you can simply flush the system with plain water, sequentially opening the radiator and engine caps. The engine cover is open and water is pouring from the expansion tank. Then close the engine plug and open the radiator drain plug. Do this only in this sequence, since the radiator is at its lowest point and all the water will pour out.