How to replace the stove tap on a VAZ-2109 yourself

Tap function

In a VAZ-2109 car, coolant circulates through two circuits. If a large one is used, then it passes through the engine. It heats up there and then goes to the radiator of the heater itself. This element is blown by a special fan, which drives the air heated by the stove into the cabin.

In summer, the large circuit is not used, and the liquid circulates exclusively through the small circuit, which includes the main radiator and power plant. The air ducts of the stove provide ventilation to the interior.

The tap itself regulates the supply of hot coolant to the heater or completely blocks its access there. Accordingly, during the warm season it is constantly in a closed position.

Checking the functionality of the heater tap

If the cold or hot air supply modes do not switch, the cause may be a loose damper control cable or souring of the mechanism itself. How to open the tap of the VAZ-2109 stove in this situation?

To do this, you need to remove the side panel of the dashboard on the passenger side. Then check the condition of the cable and if this is the reason, then connect it back into place. You can also, without removing the panel, put your hand under the dashboard, where the VAZ-2109 heater tap is located, and move the VAZ-2109 heater damper lever to the desired position. If the lever does not give in, then most likely it has gone sour and must be replaced.

Removing and replacing the heater valve

To replace the VAZ-2109 heater tap, you need a set of tools available to most drivers:

• a set of Phillips and slotted screwdrivers;
• a set of open-end wrenches No. 10 and No. 13 or socket heads of these sizes, as well as a wrench with a ratchet mechanism and a cardan;
• silicone sealant;
• container for draining coolant;
• metal brush;
• universal penetrating lubricant WD-40 or its equivalent;
• inspection hole, overpass or lift;
• rags to protect the interior flooring from antifreeze.

Ceramic, ball, and electric valves for the VAZ-2109 stove are available for sale. Which heater valves for the VAZ-2109 are better than those listed? With rare use, ball mechanisms are more susceptible to souring, and the electronic automatic heating control system “SAUO” is much more difficult to install. Ceramic mechanisms produced in Russia or “LUZAR” are free of these shortcomings.

Many experienced drivers advise simply replacing the heater taps with water taps. The benefit of this solution is not only in cost, but also in reliability - the coolant either constantly circulates or is easily closed manually at the pipe. Another way to make it easier to change the heater faucet of a VAZ-2109 is to abandon it altogether; the cabin temperature in this case is regulated by air dampers.

Instructions on how to change the heater tap of a VAZ-2109:

1. Before replacing the valve of the VAZ-2109 heater, place the car on an overpass and, unscrewing the cap on the radiator, drain the coolant into a container prepared in advance.
2. When the radiator is empty, use a screwdriver to loosen the clamps on the pipes going from the engine to the heater, then use WD-40 and a metal brush to clean the threads on the studs securing the part to be replaced. When finished, completely unscrew the clamps.
3. Carefully remove the hoses one by one; they may contain residual antifreeze that needs to be drained.

Important! Do not skip this step, because it will not be possible to remove the valve of the VAZ-2109 stove with the hoses connected.

1. Having removed the side trim of the torpedo from inside the cabin, check the condition of the pipes and change them if necessary.
2. Then, under the car, using a socket wrench No. 10, unscrew the nuts securing the part to be replaced on the VAZ stove
3. Returning to the car interior, pull the faucet towards you (where the right passenger seat is), remove the spring clamp and disconnect the control cable from the part being replaced.
4. We take a new spare part and reassemble it in the reverse order.

Important! To prevent future leakage of coolant at the joints of the pipes, it is necessary to treat it with silicone sealant, and also to increase the service life, install rubber seals where the heater faucet is located on the VAZ-2109.

Why do breakdowns occur?

As noted above, the shut-off valves of the heater are a very vulnerable element of the VAZ-2109. If it fails, then it will not be possible to ignore the breakdown. First of all, on the floor, at the base of the passenger seat in the first row, a puddle forms under the carpet. In addition, leaking antifreeze emits a very characteristic odor, which should also suggest a malfunction of the stove.

Leakage occurs for three main reasons:

• use of low-quality cranes by a domestic automaker;
• oxidation;
• mechanical destruction.

The Volzhsky plant supplies its products with membrane-type locking fittings. This system has one inherent drawback - poor tightness. Even with careful use, such taps break very quickly.

The second malfunction occurs due to the fact that the heating system is not used for at least 4-5 months a year. This period is quite enough for the valve casing and moving elements to become covered with sediment. As a result, his insides literally stick together. The owner of the car makes a significant effort to open it, and as a result the unit simply collapses. That is, a third type of breakdown occurs.

Which one is better to choose?

Hyundai Accent silver Logbook Replacing the heater fan

In total, there are three types of this unit on the Russian market. This means:

• standard, in other words native, used by the manufacturer;
• ball valve;
• clay

The first one is very cheap, but despite all this, it usually lasts for a rather short period of time. For this reason, it is worth choosing it only when the car owner does not have excess funds or if nothing else could be purchased.

The clay model is more expensive and quite highly durable, but its drawback is its comparatively low throughput. If you live in the southern regions, then feel free to take this option. Otherwise, a ball valve will do just fine. This type of locking valve is different:

Replacing the heater tap

takes less than an hour. For replacement you will need: a Phillips screwdriver, a wrench or a socket.

• great reliability;
• strength;
• good throughput.

But the latter option may also turn sour over time.

What you need to replace the heater tap

Before you start working on the VAZ stove, you should prepare all the necessary tools and consumables. In particular, you will need:

• new working faucet;
• steel clamps (2 pcs.), opening up to 23 millimeters;
• antifreeze, at least 4 liters;
• tap gaskets;
• sealing compound (special automotive or plumbing silicone with a neutral reaction);
• bucket for old coolant;
• sets of keys and screwdrivers;
• pliers.

How to Open the Faucet on the Stove VAZ 2109

Self-replacement of a VAZ crane stove2109

high and low panel

In practice, it is usually necessary to replace the heater valve if it begins to leak or becomes stuck in order for the heater regulator to stop moving. The old man cannot be restored and cannot be restored. Although without this element the heating in the room does not work normally.

How to replace a damaged stove valve on a VAZ car2109

, described in this article.

Error is a characteristic

But in fact, the faucet was leaking, and the following signs appeared:

• traces of water were found on the floor in the cabin;
• the corresponding smell of antifreeze appeared in the car.

If you notice any of the above symptoms, you should definitely look for a broken node. Remember that if you don't fix the damage in time, the repairs will cost a lot of money and you won't be able to do it yourself.

How to check? It will be useful to get under the hood of an unfamiliar engine. It should be emphasized that leaks sometimes occur in different places in the cooling complex of accounting programs, so it is useful to study all this. It is more convenient to do this with a flashlight. Refrigerant, namely, often drips from:

• radiator;
• connection points for hoses and pipes.

If the fault is found to be the fault of the faucet, the owner must begin replacement as soon as possible.

This requirement is even more relevant if it is winter, because without heating it will be very inconvenient to move in the car, and also dangerous if the road continues through a sparsely populated area.

Which one is better to choose?

The duration of its operation and the reliability of the entire crane practically depend on the properties of the new crane. Accounting

(Software).

Replacement procedure

If you have been using the car, be sure to let its power plant cool down - otherwise the coolant will be very hot, and this is dangerous.

The car must be placed on a ramp or pit, since you will need access to its bottom.

Before changing the shut-off valves discussed in this article, set the stove regulator to the extreme right position, that is, to maximum heating. Only in this case will you be able to completely drain the coolant from the radiator.

When the preparation is complete, unscrew the cap of the distribution tank slightly and place a bucket under the car to collect the leaking antifreeze. The radiator is the first to be freed from it - it has a special plug. Next, drain the liquid from the cylinder block and hoses leading to the tap.

From the hood side, loosen the pipes that go directly to the tap. The clamps on them often rust, and therefore it is recommended to treat them with VD-40 before unwinding. The screws are unscrewed with a flat screwdriver. Go to the salon. Here, remove the side trims of the center console. They are held in place by screws, which can be unscrewed using a Phillips screwdriver.

Actually, the heater valve is located on the front passenger side. There are two pipes installed on it, fixed with clamps

Carefully loosen the latter and very carefully remove the hoses (there is a risk that there is still antifreeze left in them)

Now you need to release the tap - to do this, just unscrew the three 10 mm nuts. Before this, the drive cable is disconnected from it. All that remains is to dismantle the damaged unit and install a working one in its place.

Reassemble everything in reverse order and check how the heater works, and also make sure that everything is sealed in the places where the pipes are attached.

Selecting a heating tap and cost of the part

A driver faced with a leaking heating tap will inevitably be faced with the question: which tap to buy as a replacement? The question is not as simple as it might seem at first glance. Because there are three types of heating taps, which differ not only in cost, but also in design. Let's list them:

• faucet with membrane. This is exactly the crane that the manufacturer installed on the “nines” that came off the production line. Cost - from 400 rubles. This is the cheapest faucet that can be found on the market today. However, the low price should not deceive the car owner: the reliability of membrane taps leaves much to be desired. And you can purchase them only in one case: when you couldn’t find anything else;
• ball valve As the name suggests, the locking element in this device is a massive ball, which is much more reliable than a standard membrane. However, the above ball is made of steel. And therefore susceptible to corrosion. Therefore, a car owner who decides to open the tap with the onset of cold weather may be in for a very unpleasant surprise. The cost of such a crane starts from 550 rubles;
• ceramic faucet. The most reliable and at the same time the most expensive option. Corrosion is not a problem for such devices: their body is made of plastic, and the antifreeze is locked by two tightly pressed ceramic plates. The cost of a ceramic faucet starts from 700 rubles, and if the car owner is not short of money, then ceramics should be purchased.

Here we should make one digression and tell a real-life incident. One driver I know experienced first-hand all the delights of domestic heating taps. Once again, having discovered a puddle of antifreeze on the floor of the cabin and remembering the domestic manufacturer with a kind word, he solved the problem radically: he disassembled the console, pulled out the leaking diaphragm valve, and replaced it with an antifreeze hose. He brought the long end of this hose under the hood and screwed it to an ordinary Chinese-made plumbing faucet. He screwed the crane itself to the right wheel arch with a piece of ordinary steel wire. Since then he has had no problems with antifreeze leakage. But such a solution cannot be called convenient: every time you need to open a tap, a person has to stop and climb under the hood. So think for yourself, decide for yourself, as they say.