How to flush a car heater radiator without removing it. Stove flushing (photo report)

When it gets cold, drivers start thinking about how to clean the stove in the car without removing it from the car. There may be many reasons for this, but we will not talk about this, but how to get rid of this problem. The importance of such work is evidenced by the fact that driving in a cold car interior is unpleasant and unsafe.

The cold constrains the driver's movements, slows down his reaction, fogs up or obstructs the view of the road, and this can already lead to an emergency.

Today we will try to reveal how to clean the stove in the car without removing it for everyone. It is not difficult, any driver can do it if he wants. No special equipment or large financial investments are required, you need to have a desire and at least a little skillful hands. Read our recommendations carefully and get started.

How is the stove radiator cleaned?

They begin to deal with such a problem when it is impossible to achieve the desired comfortable temperature air in the car. Before you start cleaning the radiator, you should thoroughly check the entire engine cooling system. The cold in the cabin can come not only through the fault of the stove radiator. It may happen that the coolant entering this device is not heated enough and cannot heat the air in the passenger compartment.

Look at the temperature gauge to make sure the engine is at operating temperature. With a fully functional system, the air begins to warm up already at a coolant temperature of about 50 ° C. Anyone in an accessible way check the temperature of the coolant entering the heater. If the inlet pipe is hot, you can definitely say that the radiator needs to be cleaned. For this, several methods are used. Let's consider all of them.

Method one

The diagnosis has been made, the heater radiator needs to be repaired. What do they usually do in such cases? There is only one recipe, this is cleaning the heater. In order not to disassemble it, and then assemble it, they carry out cleaning without removing it. For this, a special solution is prepared. There can be several of them, based on acids, such as sulfuric, hydrochloric, orthophosphoric and others. You can also use the "old-fashioned" method, this is when milk whey was used.

Many users speak about its effectiveness. The cleaning solution is prepared in the following sequence. One part of the above-named liquids is mixed with ten parts of water and poured into a radiator. In this state, the car should stand for several hours. After that, you need to start the engine, let it run for about 15 minutes and drain the solution. Flush the system several times with water and you can fill in antifreeze and operate the machine further.

If acids are used as an additive, it is impossible to leave the solution for a long time, an aggressive environment can adversely affect rubber products.

Method two

It can also be called “old-fashioned” as it uses a long-proven method. Citric acid is used as a "disturber" of dirt. It is enough to buy a couple of sachets for the entire system. It is desirable to dissolve it in warm, previously boiled and settled water. Water is taken as much as is required for pouring into the cooling system. Next, you need to drive a car for 7-8 days and drain the solution from the system.

This method should be used with extreme caution in winter time, since at this time, during long-term parking, the solution can freeze and harm the motor.

Method three

It appeared relatively recently around the time when Coca-Cola went on sale. After reading this advice, it is worth thinking about what we drink. Two liters of this drink must be boiled. Remove the supply hoses from the heater, reinforce the others and pour boiling water of the solution through the watering can. Now let the car with the solution stand for a while. Those who have tried this method claim that one hour is sufficient.

You should rinse the radiator with running water several times, then put the hoses in their place and try heating the cabin in action.

Before choosing a cleaning agent, you should consider what material the radiator is made of. Aluminum alloys cannot be washed with alkaline solutions, and it is undesirable to use acids for copper-brass products, they are well cleaned with diluted caustic soda. Mannol, specially developed for such purposes, has shown itself to work well, as well as some others. You can find recommendations for the use of other means. They are used as such solutions as household " Anti-scale», « Mole" or " Xylitol».

Hopefully, this article will be useful to the readers. We tried to highlight the issue of how to clean the stove without removing it from the car. But it will be better if you do not bring the system to such a state. And this can be done if you use low-quality antifreeze, or eliminate leaks with powder sealants.

Heating in the car is not a whim, but one of the functions that provides a comfortable and safe driving... If the frost formed on the glass reduces the view, then it will not take long to get into an emergency situation.

As always, in our country, the frosty time comes unexpectedly. If on a regular trip, by pressing the button for turning on the heating instead of warm air, a cold air blows out of the duct, then the moment has come when you need to clean the radiator of the stove. For the effectiveness of this process, it will be useful to understand: how the car heating system works, what methods and means can be used to clean it.

Heating system

The stove and bypass valve, integrated into the machine's cooling system, are the main heating elements. The heater radiator is heated due to the high temperature of the engine coolant, which also enters the heat exchanger.

So if the pump is in order, the thermostat is working, the stove fan is not blown out, the air ducts are not clogged, the antifreeze level is normal and there is no airlock in the cooling system, then the reason for poor heating is the stove radiator contamination. This is due to the fact that all the dirt plying through the system ends up in the heater radiator, gradually clogging its cells. Over time, this leads to a decrease in the temperature of the air entering the vehicle interior.

There are two ways to clean the heat exchanger: flushing the stove radiator without removing it from the car and the same procedure, completely dismantling it.

Flushing the stove radiator without dismantling

The first and most easily accessible way is to flush the radiator without resorting to any disassembly of the system.

We make a solution of citric acid and distilled water based on the proportion of 100 grams of lemon for the entire volume of the cooling system of your car. We drain the old antifreeze and fill in the solution. Then we drive it for 5-6 days. After this period, we drain the liquid, with which all the dissolved dirt and scale will come out. We fill in new antifreeze and enjoy the warmth in the cabin. The second method requires little preparation and minor disassembly of the components of the vehicle's heating system. For this procedure you will need:

  • Compressor or water pump.
  • A pair of hoses with adapters. One end of which corresponds to the diameter of the hoses coming out of the stove.
  • Clamps, container for flushing fluid, fumlenta.
  • A product that will flush the heat exchanger.

Read also: Cabin filter car

The means that are used to clean the heater radiator should be covered in more detail. In the selection of such substances, it is necessary to proceed from what material the heat exchanger is made from. If the radiator is aluminum, then it is unacceptable to rinse it with alkaline solutions, in this case, means with a certain percentage of acid in their composition will do. With the flushing of the copper-brass heat exchanger, everything should be exactly the opposite. For the rinsing procedure, you can use professional products, such as special Mannol fluid, or improvised products.

In the choice of improvised liquids, advice varies, for some, Xylitol or Antinakipin has become a panacea for descaling in household coffee makers and kettles, others advise using regular Coca-Cola or milk whey, and still others praise Mole for cleaning pipes.

But it is better to use a proven method - flushing citric acid, and if the heater is copper - caustic soda.

We start the flushing process

To begin with, lifting the hood, we find two hoses providing supply and drainage of fluid to the stove. Then:

  • in the radiator fins. Having disconnected these hoses, we build them up, securing the joints with clamps and wrapping them with fumule for tightness.

  • Turning on the compressor, blow out the old antifreeze from the heat exchanger.
  • Fill the radiator with diluted citric acid or other selected cleaning liquid, give it time, up to half an hour, to dissolve the dirt and deposits. In the order of advanced cases, it is allowed to increase this time to several hours. Some advise, before pouring, to heat the solution to working temperature antifreeze, and in the case of using "Coca-Cola", in general, boil it.

  • After a selected period of time, drain the liquid into a prepared container.
  • This procedure must be repeated until a clear liquid comes out of the drain hose.
  • By connecting the pump to one of the hoses, rinse the stove under pressure with clean water.
  • Having connected the hoses back, and topping up the antifreeze, it is necessary to eliminate the airing of the system.

Heating any car is simply called a stove. The principle of operation is the same for everyone. The coolant circulates in the engine cooling system and is heated to a high temperature. One of the points where the coolant is located is the heater radiator. This is a small radiator with a special electric motor for injecting hot air through the honeycomb of the radiator into the passenger compartment. In winter, heating in the cabin is simply indispensable. Therefore, on the eve of cold weather, the driver must take care of the health of the heating system in the car. This problem often catches car owners by surprise. But don't despair. The problem can be solved on your own without spending a large amount of money. In today's article we will look at how and with what to flush the radiator of a car's stove at home. As you know, several elements are used in the machine. This is the main one, the radiator of the air conditioner and the stove. The latter practically does not differ from the first in its design. It is also a set of tubes with special foil, thanks to which the cooling area is increased. This device works from the main element. As working fluid antifreeze or antifreeze is used here. It should be noted that, unlike the radiator of the air conditioner, the stove element is not protected. cabin filter... Therefore, it gets dirty more often. And both outside and inside.

Why is the radiator of the stove dirty?

Over time, plaque forms on the inner walls of the stove radiator tubes. It’s like the limescale in the kettle. The thermal conductivity of the heater decreases and, consequently, the heating of the passenger compartment deteriorates. How to clean the radiator of a car stove? And more importantly - how to flush the stove in the car without removing it? It all depends on the type of heater installed and the fluid used for the cooling system. Nowadays, almost no one pours ordinary water into the cooling system. As prescribed, most drivers use antifreeze and antifreeze. Nevertheless, you should be aware that two types of contamination are formed in the cooling system: scale and fatty sediment of antifreezes. They are washed with various cleaners. Alkaline and acidic. There are also neutral flushes. Experts recommend replacing the antifreeze every two years. Over time, the coolant loses its properties.

Anti-corrosion additives are no longer as effective as they used to be. As a result, the system lines become clogged with rust and other components. Also, the element is clogged due to the sealants that are used to combat the leak. To eliminate this problem and restore the tightness, it is enough to tighten the clamps or replace the pipes. But some people use a sealant for this, which eventually settles inside the radiator and clogs it. The next thing is dirt. It enters the cooling system through a leaky cover expansion tank or the main radiator.

Radiator types

Stove radiators, mainly in terms of flushing, differ in the material of manufacture. Most modern radiators are made of plastic and aluminum. That is, the side tanks of the container are made of plastic, and the honeycomb is made of thin aluminum tubes. However, sometimes there are still old-style radiators made of copper. Copper oxides are much more difficult to wash off than regular plaque. Therefore, flushing a copper radiator is a separate issue.

How to flush the radiator

Currently, there are many different products on the market for flushing a car heater radiator. They are produced as well-known brand manufacturers such as: Lique Moli or Hi Gear... And less well-known trademarks, for example, Russian " Laurel». By the type of impact, they are divided into: neutral; alkaline; acidic; two-component. The two-component options for factory washes are considered the best. The increased demand for fluid for flushing the car's cooling system, accordingly, forces manufacturers to work in the right direction. Folk remedies However, various additives and fluids for cleaning the cooling system have appeared relatively recently. As before, car owners cleaned the cooling system on their own. It turns out that some of the household substances we are used to can also flush all the pipes of the cooling system quite well. Previously, they showed themselves well: citric acid; food grade 9% vinegar; caustic soda; baking soda. As you can see, acidic and alkaline substances work here as well. The best way to alternate between acidic and alkaline environments. First, the system is flushed with acid, and then with alkali.

Flushing the heater radiator without removing

Important! Pour in distilled or strong boiled water! Do not try to flush the cooling system with plain tap water. The suspensions contained in ordinary water will further contaminate the entire system.

Least difficult way flushing the radiator of the stove yourself, this is with the help of proprietary neutral additives to antifreeze from well-known firms... In this case, a certain volume of liquid is added to the expansion tank, and operation continues as usual. After 2-3 days, the antifreeze is drained and fresh is poured. In this case, the washed off plaque turns into a gel component, and is easily washed off with water. However, this is not very effective when the stove radiator is heavily clogged. The simplest and quick way - flush the stove radiator without removing it from the mountings. What is required for this? We need to prepare a solution of distilled water and citric acid. In what proportions to dilute? Experts recommend using 100 grams of acid for the entire volume of SOD, that is, 8-10 liters. Old antifreeze at the same time it merges. In its place, we pour a solution. You should ride it for 4-5 days. After that, we drain the liquid along with the dirt that our acid washed away. Next, calmly fill in antifreeze (preferably new) and enjoy the warmth in the cabin and a clean radiator. By the way, this is how not only he washes, but also the pipes of the system. Please note that the freezing point of distilled water is much lower than that of antifreeze. Therefore, it is not recommended to carry out the procedure in cold weather. So you run the risk of damaging the elements of the SOD. Ice water expands, destroying all elements of the system. When performing such operations, the air temperature must be at least +10 degrees Celsius. This requirement does not apply to the removal method for cleaning the heat exchanger.

Second way For this we need the following tools and materials: Hoses with adapters. Their diameter should correspond to those that come out of the stove. Compressor (water pump). Container and clamps for flushing fluid. The solution itself (we will talk about it further). Fum tape. So, how to flush the radiator of a car stove? It is worth noting that the tool is selected based on the material from which the element is made. How to wash the aluminum radiator of the stove? Alkaline solutions will be harmful to him. You can pay attention to professional products from the Mannol company. If it is a copper radiator, the opposite is true. The more alkali the better. Motorists use improvised means in the form of "Coca-Cola" or "Mole" pipe cleaning fluid. Anti-scale is excellent for removing scale and dirt, the reviews say. But the best option would be to use citric acid (for aluminum products). What is the best way to flush the copper stove radiator? For this, a solution of caustic soda is used. Before flushing the stove radiator, you should find the two hoses that go to it. Next, we disconnect them and build them up using adapters. We fix the docking places with clamps and wrap them with fum tape for greater reliability. We turn on the compressor to the "return" and remove the old fluid from the radiator. After that, fill in a solution of citric acid or caustic soda. The duration of the action is from 30 to 60 minutes. In advanced cases, you can increase the time up to 2 hours, until the solution completely cleans the walls from scale. For greater efficiency, it is recommended to fill in the liquid already heated to operating 80 degrees. If it is "Coca-Cola", it should be boiled, relieving it of gases. Further, after the right time, pour the liquid into a prepared canister or other container. You will see dirty water pouring from the hose. For the best effect, repeat the procedure until the liquid becomes clear.

Next, we connect the pump and, under pressure, we rinse the stove again with clean water. Disconnect the clamps with adapters, reconnect the hoses and add coolant. This concludes our operation. So we managed to flush the stove radiator without removing it from the car. But it is worth remembering that this method only partially removes pollution. If, after flushing, barely warm or cold air continues to flow from the air duct deflectors, you will have to use more effective method... It involves the complete dismantling of the radiator.

Flushing with removal

To do this, you need to allocate a separate day. Dismantling a radiator is a very laborious process. But this way you can clean the heat exchanger with confidence. Also, if the radiator is leaking, you can find out where the depressurization came from. The breakdown can be eliminated by "cold welding". Large cracks are repaired by argon welding. So, before you rinse the stove radiator, you need to disassemble the front panel. After dismantling the torpedo, we disconnect the pipes that go to the heater block. On some cars, you will have to unscrew the air conditioning pipes (where the evaporator is located). Next, we unscrew the block and take it out. For external cleaning it is enough to use warm running water. You can just wash it under the tap. Be careful not to damage the fragile foil on the tubes. How to rinse the radiator of the stove inside? To do this, use the same means as in the previous case.

A solution of citric acid or soda will go, depending on the material from which the heat exchanger is made. You need to fill in a pre-warmed liquid. For convenience, use a thin-nosed watering can. Close the outlets of the heat exchanger. Change its position after half an hour. It is worth noting the ease of such flushing, with the exception of dismantling the panel. Also, an additional pump, clamps and adapters are not required here. Helpful hints. When flushing the radiator, it is recommended to check the condition of the rubber pipes.

They should be soft and free from cracks. If there are any or it is hard, it is recommended to replace it with a new one. The same applies to the pipes that go to the main heat exchanger. A worn-out element can provoke a leak in the cabin or depressurization of the system, due to which a airlock... The pipes cannot be repaired with sealant or other means - only replacement. Clamps also change. Next time you just don't unscrew the elements. And in order to avoid subsequent contamination, use high-quality antifreeze and adhere to the replacement schedule. When working with alkali, remember the safety measures. Use rubber gloves... Do not breathe in the vapors of the solution, especially when it is boiling. In order not to face the problem cold stove in the future, to purge the external parts of the radiator, periodically turn on the fan for full power... In the autumn, clean the air ducts from fallen leaves. It is not uncommon for one or more leaves to get stuck in the tube. Air flow is impaired. Incomprehensible rustling sounds appear. So, we figured out how and with what to flush the stove radiator. As you can see, the procedure can be done by hand. The necessary funds are sold in any hardware store.

When choosing a means for flushing the radiator of a car stove, it is necessary to take into account the fact that the blockages have a heterogeneous composition. Some substances dissolve better with alkali, others with acid. You can purchase a ready-made liquid for flushing a heater radiator at a car dealership.

Manufacturers of chemistry for flushing stove radiators offer compositions of various types of active substances, which can be divided into three groups:

  • acidic
  • alkaline
  • neutral.

It is advisable to use either neutral or alternate acid and alkaline in the process.
Whatever substances you use, be careful, especially take care of your eyes and do not inhale vapors. Durable rubber gloves will not be superfluous - any of the compounds, especially when in the wound, causes pain and can cause inflammation.

How to flush a car heater radiator

It is better to remove the stove radiator to ensure the required result, but take into account the amount of work - on modern cars dismantling the heater is a very time-consuming task that requires a good knowledge of the car's structure. Just in case, know that it is possible to disconnect the connecting pads of the wiring, which have a bright yellow color, only with the battery terminal removed - otherwise you risk activating the airbag igniter.
Removing the heatsink will provide the following benefits:

  • You can check the operation of the fan, if necessary, remove and replace the impeller of the stove motor or the motor itself;
  • radiator, it will be possible to flush and clean the radiator of the stove with outside... On machines without a filter on the air intake, it gets clogged with debris and dust, poplar fluff is especially harmful - it seems to sinter, forming a crust on the cells. A heat exchanger clogged from the outside is blown out worse and gives off heat;
  • the main radiator and other elements of the cooling system (including channels in the cylinder head) will not be excessively exposed to aggressive substances;
  • You will be able to assess the condition of the pipes, radiator cells, and also check how tightly the air dampers close. On the VAZ 2108-2109-2115, it is the damper drive (poor fixation of the cables) and the gaps when closed between them and the heater body are often the reason for air intake from the street, bypassing the radiator. In such cases, even replacing it will not contribute to “warming”. However, this can happen on expensive carselectronic system climate control can “shut down”. Its repair is available only to an electrician and electronics specialist.

If you have to wash the aluminum radiator of the stove, remember that its repair in case of damage can be comparable in cost to the price of a new one. Flushing the copper radiator of the stove is not so dangerous - if anything, it is successfully sealed.

"Folk" means for flushing radiators

Folk remedies for flushing the stove radiator

Do-it-yourself cleaning of the stove radiator used to be a creative task. Before there was an abundance of auto chemicals in the windows, motorists tried to solve the problem on their own. Some methods have passed the test of time. Considering that the basis of the composition of the purchased and "folk" remedies are similar components, the effectiveness of "home recipes" is often not inferior to the purchased ones. Let's consider some.

Acidic remedies

It is better to wash the copper radiators of the heater with a 15% solution of sulfuric acid - strong alkalis (caustic soda contained in the "Mole") can damage them. To prepare the solution, you need an electrolyte for the battery and distilled water. The concentration can be checked with a hydrometer. A 15% solution corresponds to a density of 1.1 grams per cubic centimeter (electrolyte density 1.28).

Flushing the stove radiator with electrolyte requires control - sulfuric acid is very aggressive.

For flushing the radiator of the stove with citric acid, the proportion is approximately the following: 100 grams of powder in a volume of water the size of a bucket (7 - 10 liters).
You can also flush the stove radiator with table vinegar 9%.

Flush the stove with Coca-Cola only in extreme cases and remove the remaining dirt as thoroughly as possible with water. The sugar in this drink can turn into caramel, which will damage other elements of the engine cooling system. Better not to experiment, despite the stories of successful results.

Alkaline products

Flushing and cleaning the car stove

Washing the radiator of the stove with "Krot" is possible, since its active substance is caustic soda - a strong alkali. But do not use it as prescribed by the instructions - do not “soak” the product with “Mole”, as dirt can, moving, stick together and tightly clog the radiator tubes - their inner diameter is much smaller than the dimensions of the sewer pipes.

It can be used for flushing the heater "Tiret", but it dissolves dirt worse, but is "more careful" in relation to the metal of the pipes.

If you want to flush the heater radiator with “Whiteness” or, for example, with a toilet “Duck”, you can try it. Don't just do anything blindly. That is, determine the type of composition - acidic or alkaline and check its effect on prototypes of metal. To check the type of active ingredient (if not listed on the label), use regular baking soda, which will react violently when in contact with acid. It's good to know in order to flush with both types of means - the efforts spent on dismantling the stove should not be left without a positive result.

Use distilled water to prepare the wash solution.

Distilled water must be used to prepare the rinsing solution. The fact is that the active substance will react with the particles present in the dirty water and “fizzle out”. For the same reason, a supply of flushing agent will not be superfluous.

The pump for flushing the radiator of the stove

The pump for flushing the radiator of the stove

So, you have decided on the choice of liquid for flushing the radiator of the stove, now you need to ensure the circulation of the solution in order to avoid clogging the pipes with contaminants lagging from their walls.
You need to prepare:

  • pump
  • hoses (can be joined with different diameters using metal pipes and clamps)
  • mesh filter for cleaning fluid at the outlet of the radiator
  • capacity, if there is no suitable volume - at least two buckets (tank, keg, etc.)

The pump is used, as a rule, any available. The options are:

  • pump from washing machine but it requires a clean fluid as its screw is easily jammed by small objects. But it is hardly designed for a long duty cycle;
  • "Suburban" submersible pump. Not afraid of dirt, but very noisy;
  • additional "furnace" pump - the best way... Fittings of suitable diameter, safe in damp conditions 12-volt power supply, long-term operation.

You can set the operating mode of flushing yourself. It is advisable to change both the direction of circulation and the type of flushing fluid. It is possible to alternate active flushing cycles with short-term “soaking”.
You can determine how effectively the process is going by the amount of dirt on the filter for discharging liquid from the radiator.
If you doubt whether flushing the stove radiator helps - ask around car owners with experience, for sure many have a positive experience.

It is advisable to combine flushing the heater radiator from the sealant with blowing with compressed air.

And yet - the cooling system, for example, the VAZ 2110, is designed for operating pressure 1.2 atmospheres, at 1.5 atm, a valve in the expansion tank cap is triggered. This information will help you “by eye” evaluate and adjust the solution flow (when blowing - air pressure) and not damage the radiator.

Flushing the stove radiator is.

If at some point you notice that your car has become much colder in winter than it was before, then there are two possible answers:

  • The stove cannot handle the load.
  • The heater is clogged.

Now is the time to service the heating system, but it is extremely important to know what the car is. And for this you need to decide also in what way you will do it.

Reasons for clogging the radiator of the stove

Many novice motorists do not know that it is possible to flush the stove on a car without removing and dismantling the heater itself. And the main thing is that you can do it yourself. The main reason for the stove radiator clogging is the use of coolants of different composition. As a result of the interaction of such formulas mixed in composition, solid particles are formed, which are deposited on the walls of the equipment. This is a consequence of the folding of incompatible chemical compounds.

Liquid, together with solid particles, constantly circulates in the cooling system and, at first glance, it may seem that this does not harm the system as a whole. At the moment when you turn on the blowing of the cabin, setting the parameters for heating, due to the temperature difference between the incoming cold air and the heater of the stove with hot liquid, the process of adhesion of solid particles to the walls of the heating equipment occurs.

The heater stove is designed in the form of a honeycomb, which contributes to faster coking. This happens all the time and there comes a moment when the heating power stops heating the car interior. At such moments, you think about how to clean the stove radiator without removing the equipment itself. The service station will unequivocally say that cleaning the stove of your car at home is simply impossible, since you can damage the tightness of the joints, and finally break the connecting parts of the equipment. And such actions will lead exclusively to breakdown. But this is far from the case. In case of non-observance of the operating rules, the operation of your car's stove will become absolutely impossible, and you will have no other option how to replace it.

Is it possible to clean the heater without removing

It is not a secret that many vehicle owners are terrified of the process of removing the stove radiator, because this can lead to unwanted deformation of many fasteners. Such actions usually lead to a violation of the body integrity of the product due to ignorance of the sequence of the disassembly process. You should know that the procedure for flushing the stove radiator without removing it with your own hands is quite doable, without removing it yourself and without the need to contact a service station.

What can be done in this case? Everything is much simpler than you might imagine. You can cope with this problem, you just need to know how and how to flush the radiator of your car's stove without damaging the equipment itself.

In the event that the pump is in working order, the thermostat is in good working order, the stove fan has not stopped, the air ducts are clean, the coolant level is normal, the cooling system is not airy, then the stove radiator may be the cause of the weak heating of the passenger compartment. The reasons for this are clear - all the dirt that circulates in the system, as a result, remains inside the heater. This is the reason for lowering the temperature of the air entering the car interior.

It is quite possible to clean the radiator

Flushing the stove radiator with citric acid is more related to the so-called folk methods, which will not "hit" painfully on the pocket. The procedure itself is simple even for an inexperienced car owner. It is necessary to clearly and correctly understand the entire sequence of actions, and the operation of your stove will no longer bother you. Did you notice that over time your heating system works worse and worse. This is especially noticeable on cold winter days, when the temperature the environment drops below -15 / -20 0 С, and warm air barely blows in the cabin.

How to flush a stove in a car without removing it?

Flushing the radiator of the stove is quite economical and does not take much time. It makes it possible to restore the operation of the stove by flushing the heater radiator without removing it. We will consider this approach in stages:

  1. Citric acid, which cleans well and removes limescale.
  2. Container for liquid.
  3. 2 hoses at least 2 meters long.
  4. Antifreeze, of course, is desirable to change, this will save you from such actions in the near future.
  5. The required amount of water in which we will dissolve citric acid.
  6. Vibrating pump for pumping liquid. It is especially useful when flushing thin radiator tubes.

To clean the radiator of the stove without removing it, the sequence of your actions is important.

  • After all preparatory work it is necessary to drain all the liquid from the cooling system. Place a container of the required volume directly under the radiator and open the special tap at the bottom.
  • Once all the antifreeze is drained, place another container under the engine. Unscrew the drain bolt to drain the fluid from the cylinder block.
  • Never mix these fluids if you use them later.
  • Next, find the 2 pipes that lead directly to the heater radiator to the passenger compartment. They are usually located in the engine compartment, and it is not difficult to find two pipes that go out from the side of the passenger compartment. Loosen the clamps and remove them. In this case, it is possible to drain part of the antifreeze from the radiator and pipes. To avoid wastage of antifreeze, install a container directly under the work area.

  • Connect prepared hoses to each branch pipe of the heater radiator. Do not forget to secure with clamps, because the pump will create pressure in the system. Connect the inlet hose to the pump. The pumped liquid must be filtered, so install a filter in the form of ordinary gauze at the pump inlet. Lower the pump into a container (you can use an ordinary metal bucket). Lower the outlet hose into the same container.
  • Citric acid is an excellent descaler for interior surfaces. We use 300 grams of acid for 10 liters of water.
  • Prepare flushing fluid and pour into the bucket where the pump is installed. Necessarily need to be warmed up.
  • Turn on the pump, the process should take 10-15 minutes. Next, you need to turn off the pump and swap the hoses. This will provide a reverse cycle flush. Circulation in both directions is necessary.
  • Repeat the process several times, after which it is necessary to rinse with clean water and dry with warm air. This procedure frees the tubes from moisture and oxidation.

So, cleaning the heater radiator without removing it is over. Cleaning the radiator was not difficult at all. Reassemble the entire cooling system and refill all necessary fluids... Start the car to check. If warm air comes out of the dampers, then you did everything right. It should be borne in mind that the reason for the lack of warm air may be not only due to a clogged heater radiator. Almost any motorist can wash his stove radiator without having any special knowledge for this. We hope that you have received an answer to the question - how to flush a stove radiator at home.

Summary

Washing the car stove without removing it is one of the simple and easily accessible methods that does not require disassembly work. Having done this job, you will be disappointed if fluid leaks from a small hole in the hose itself. Therefore, afterwards it is recommended to replace the hoses, the appearance of which no longer inspires confidence and to install fresh clamps. Make sure that the air ducts, which can reduce the quality of heating, are clean. Be sure to use only high-quality coolant, as this will protect your heating system from impurities and scale. From time to time, we recommend turning on the fan at the maximum permissible speed in order to blow off all the elements of the heater radiator.