Do-it-yourself stove repair on Nexia

In detail: do-it-yourself repair of a Nexia stove from a real master for the site my.housecope.com.

Owners of a Daewoo Nexia car often encounter the problem of a poorly heating stove, especially inadequate heating of the passenger compartment in winter. Of course, the reasons for the poor performance of the heater can be different:

airing the heating system;

bad coolant barrel lid that does not hold the required pressure.

But when all these nodes are in good condition, and when driving in cold weather, it doesn't matter cold air blows from the stove - it remains only to sin on the factory jambs. They can be fixed by upgrading the Nexia stove.

How to repair / upgrade a Daewoo Nexia stove

With such a repair of the stove, you will need to disassemble the front console of the Daewoo Nexia car, remove the radio tape recorder and the glove compartment. For convenience, you can remove the front seats, but you can do without it.

How to cope with this and other nuances of repair and modernization of the stove, see the video instructions to the end.

Subscribe to our channel in I am ndex.Dzene

Even more useful tips in an easy-to-use format

yeah video about electro valve

video about the faucet was never filmed .. but there, in principle, nothing complicated. You can install the solenoid valve from the gazelle into the cut of the stove hose (under the hood). And the control should be done from the window regulator button: - White (+) and black (-) wires - can be permanently connected to the power source; - Wires green and brown - control. The valve is controlled by applying pulses of negative polarity to these wires. When an impulse (minus) is applied to the green or sometimes orange wire, the solenoid valve closes, when an impulse (minus) is applied to the brown wire, it opens. Accordingly, it is convenient to control valve switching from the passenger compartment, by means of a three-position single-stable (only one latching position - neutral) toggle switch or button. An electric motor and a controller are located inside the valve body, which protects the electric motor in terms of current and response time. Positions 1 and 2 on the controller board are respectively + and - power supply, positions 6 and 8 are control ones.

Video (click to play).

The stove is one of the most capricious units of the Daewoo Nexia car. Knowledge of the algorithm for diagnosing and eliminating heater malfunctions will allow you to avoid unpleasant situations in the cold season.

The stove allows you to create a comfortable microclimate for the driver in the cabin of any car. In addition, it heats the glass, freeing them from ice or frost. All this is especially true in the cold season.

An important condition for the operation of the stove on the Daewoo Nexia is considered to be the power unit warmed up to the nominal temperature. The stove starts to warm up well only after the engine has warmed up.

The heater control unit is located on the central panel of the passenger compartment.

The interior heating system consists of the following parts:

Radiator (heat exchanger). It warms up the air and blows the windows from the side of the passenger compartment. The increase in air temperature is carried out due to the exchange of heat between the walls of the radiator and the heated antifreeze, which comes from the engine.
Blower (fan). The blower is an electric motor with rotating blades. Changing the rotation speed allows you to regulate the flow of air coming from the stove, to make it more or less intense.
Thermostat damper. It allows the driver to regulate the operation of the supercharger. The damper controls all air flows through the radiator, allowing you to change the temperature in the cabin. The device is located in the overall structure of the stove.
Executive element.This assembly is a plastic knob that controls the flow of air. During operation, it opens or closes the heat pipe of the radiator and directs the air flow to different areas of the passenger compartment (blowing glass, leg area, rear, etc.).
Hoses and lines. The coolant heated by the engine is forcibly circulated through them, which is the main source of heat for the stove.

A typical diagram allows you to understand how a heater radiator works

The electric motor of the heater of the Daewoo Nexia car has a cylindrical shape and a plastic-metal body. Its technical characteristics are as follows:

rated voltage - 12 V;
current strength - no more than 20 A;
impeller speed - 3600 rpm;
impeller diameter - 140 mm;
blade height - 68 mm;
fan type - centrifugal.

The electric motor is designed to ensure the normal operation of the stove in any conditions

The oven vacuum switch is a flap control device. The driver from the passenger compartment can set the stove operating mode that is comfortable for himself by moving the levers on the control unit. If it is not possible to direct the air flow to the desired area of the passenger compartment, a small repair will be required.

Heat-cold switch or airflow direction switch? If the first - look at the "beard" under the tidy on the right (where the passenger's knees are) - there the cable moves the throttle lever. Perhaps he jumped off or something else happened to him, move the handle and see if it works. And if there is blowing, then, most likely, the hose jumped off (such a thin one, almost like a rod from the handle), coming from the intake manifold to the passenger compartment (under the tidy) - the drive at the dampers is vacuum, and the vacuum is taken from the inlet through the hose.

https://my.housecope.com/wp-content/uploads/ext/3415/f/hodovaya/4737-ne-rabotaet-pereklyuchatel-pechki/

Heating modes are controlled by a switch from the passenger compartment

General ventilation of the passenger compartment is carried out through the air intake, which is located in the area of the Daewoo Nexia's windshield. The air intake takes the right amount of air, feeds it to the stove units - there it warms up and enters the salon.

Car owners know that it is impossible to operate a Daewoo Nexia car with a heater operating in recirculation mode for a long time - the concentration of carbon dioxide can greatly increase in the passenger compartment. Therefore, it is recommended to use this mode only when crossing areas with strong odors (landfills, fires, etc.).

It is also not recommended to turn on recirculation in winter, as condensate will quickly begin to accumulate and freeze on the glass. This will make it very difficult for the driver to see.

Failure of the stove can lead to unpleasant consequences for the driver. This is felt most strongly during the cold season. If such a situation arises, it is first necessary to accurately diagnose the cause of the malfunctions.

Backlash may appear on the damper actuator. In this case, the stove will operate normally, but due to the backlash, the damper will begin to bend under its own weight, forming a gap. Cold air will begin to flow into the passenger compartment through this gap, lowering the temperature in the passenger compartment.

If the stove heats up the air weakly, you need to adjust the dampers

This malfunction is due to the design features of the structure of the stove and the location of the damper. The damper is installed directly in front of the heater radiator and must always be in a raised position for free passage of cold air to the radiator. If the cable drive is weakened, it changes its initial position, and cold air begins to flow not to the radiator, but to the passenger compartment.

It is quite easy to fix this problem: it will be necessary to seal the gap formed in the operation of the damper so that cold air flows into the cabin through the stove. More detailed instructions will be given below.

Sometimes the stove starts to work strangely.It heats the air normally, but does not allow the air flow to be directed to the lower part of the passenger compartment. The problem, again, lies in the damper, the drive of which does not allow the lever to open the position "to the feet". In this case, you will have to remove the central panel of the machine and adjust the cable mechanism.

The problem of the impossibility of turning on the "in the legs" mode is solved by adjusting or repairing the damper drive

There are two reasons for the failure of the stove of the Daewoo Nexia car:

the electric motor is out of order;
an air lock has formed in the radiator.

First you need to make sure that there is no excess air in the system. To do this, you need to open the hood and, on a warm engine, touch the antifreeze supply pipe connected to the radiator and the throttle valve hose with your hands. If one of them is much colder than the other, then an air lock has formed in the radiator, which can be removed in 5 minutes. To do this, follow these steps:

Unscrew cap from expansion tank.
Start the engine.
To bleed air from the system, press the accelerator pedal forcefully and sharply several times.

By unscrewing the tank cap and sharply pressing the gas pedal, you can free the system from the airlock

If no airlock is found, the electric motor will most likely have to be replaced. This work is not very difficult, but it requires maximum concentration.

Sometimes the fuse for the stove may blow. Unlike most cars, the fuse box on the Daewoo Nexia is located not in the engine compartment, but in the passenger compartment. The fuse for the stove is red and is located in the mounting block in the dashboard. To replace it you will need:

To the left of the steering wheel, find the fuse box niche.
Remove the cover from the unit.
Using the information on the purpose of each element on the inside of the cover, find the red 10A fuse and pull it out with pliers for inspection.

On the cover of the block there is a detailed diagram of the location of the fuses.

Over time, the stove on the Nexia begins to heat poorly, and this is due to the appearance of air in the engine cooling system, or rather, in the radiator of the stove.
You can, of course, expel the air from the cooling system, but it does not help for long - after a while the stove is “airy”, and again starts to give slightly warm air.

Let's do the following experiment. On the machine warmed up to operating temperature, we additionally give it some more time to idle. After that, we feel the direct and reverse pipes going to the stove:

Warm stove pipes , and other pipes of the cooling system are hot (for example, the heating return pipe of the throttle valve), it turns out that there is air in the radiator of the stove - we read this material to the end , fixing flaws in the design of the Nexia cooling system.
Branch pipesstoveshot , read "Preparing Nexia for winter", and make the Nexia stove warmer (plugging the cracks, insulating, etc.) - in the specified material are indicated ALL POSSIBLE causes of a cold stove , and tips on how to make the stove warmer. Also, it does not hurt to seal the cold / heat damper, because often the reason for the cold stove lies in it.

Carefully remove the cover from the expansion tank of the cooling system, and gas it a little. In this case, antifreeze begins to drain from the return pipe of the throttle valve heating into the expansion tank from above and antifreeze is created "Waterfall effect:"

antifreeze falls from a great height, when it comes into contact with the surface of the antifreeze, air bubbles are created in the tank, which subsequently enter the cooling system and “air” it.

To avoid airing the cooling system, a way was invented to return the drain from the throttle valve return not to the expansion tank, but directly to the branch pipe running from the bottom of the expansion tank.

To do this, you need a tee - you can make it according to the specified dimensions, or pick up something from the commercially available (plumbing tees, tees from the cooling system of cars of other brands)

Cut off the throttle valve heating return pipe (which fits on top of the expansion tank), about 5-6 cm from the tank itself.

From the side of the expansion tank, this pipe must be plugged. We insert a bolt (or a piece of a rod) into the hose in size, tightly squeeze it with a clamp. It is advisable to wrap the bolt a little with FUM tape

We cut the branch pipe going from the bottom of the expansion tank. We cut it in the place where it goes vertically. We shorten at the incision site by about 3-4 cm, because this distance will be taken by a tee.

We insert a tee into the cut ends of this pipe, and on the remaining fitting of the tee we put on the return pipe from the throttle valve heating, which was previously connected to the top of the expansion tank (we cut it off in the previous step).

We compress all the tee fittings with clamps

A very good option for a ready-made tee can be purchased at a plumbing store:

1 tee
2 nipples 20 mm
1 nipple 10 mm

We assemble the parts either using gaskets or using FUM tape. We put on branch pipes on the fittings and squeeze with clamps

You can make the specified revision without installing a tee and rearranging the pipes. We take a small piece, about 40 cm, of the brake pipe from the VAZ-2108 (maybe it will fit from other cars).

We bend the tube as shown in the photo. With the return pipe from the throttle valve removed, we insert the tube into the tank at one end, and on the other end we put on the return pipe from the DZ (do not forget about the clamps, they should already be on the pipe)

After installing the tee, it is necessary to expel air from the cooling system. We put the car up a hill (in front of it higher than the back), put it on the handbrake, start it up. We open the hood, remove the cover from the expansion tank. Add antifreeze above MAX. We raise the revolutions by about 3000 (for the cable), with the other hand we pump the pipe going to the stove. At the same time, we look at the level in the tank - if it falls, then top up. We do this procedure until the level in the tank stops dropping.

After some time, the stove in the car stops working and does not perform the functions that are assigned to it. Then you will need urgent repair of the Daewoo Nexia stove. Experts note that the main reason for failures is the presence of air in the cooling system of the power unit. To be more specific, we are talking about the radiator of the vehicle's stove itself.

Some car enthusiasts offer to purge air from the cooling system. However, as practice shows, this method does not help for long. After 2-3 months, air again enters the Daewoo Nexia stove, and the problem with heating repeats again. As a result, the stove delivers cool air into the vehicle interior, which, of course, is not enough for the driver and passengers to drive normally in it.

You can correctly diagnose the problem and replace the stove with your own hands in the garage.

It is necessary to warm up the vehicle to the operating temperature.
After that, a short period of time should be allowed to run the power unit at idle.
Next, we probe the pipes that go directly to the stove of the machine. It is necessary to feel both the straight and the return pipe.

Based on the actions taken, you can determine the presence of a problem.

If, as a result of the work carried out, the pipes on the stove are in a warm state, and the other elements of the cooling system are hot, then there is air in the radiator of this system. Then it is necessary to correct the shortcomings in order to ensure the normal operation of the stove.
If the pipes on the stove are hot, then the stove should be repaired so that it does not get too hot. For example, there is an option for insulating it or eliminating cracks.

How to repair a stove with your own hands on a Daewoo Nexia? In order to understand for what reasons air can enter the stove, several sequential steps should be taken.

It is necessary to carefully remove the cover, which is installed on the expansion tank of the cooling system.
Now you should slightly add gas on the car.
In such a situation, antifreeze begins to flow into the tank from the reverse throttle valve. Experts also call this the waterfall effect. In this case, the liquid enters the tank from a great height, and when it comes into contact with the surface of the antifreeze itself, air bubbles are formed. Then they end up in the cooling system, which leads to airing.

In order to be able to eliminate this problem, they came up with a very original method. Its essence is to return the drain from the return line on the throttle valve to the branch pipe. Before that, the drain went immediately into the tank itself. In order to repair the stove, you need a tee. You can do it yourself or you can find the required tee in the retail network, where a large selection of plumbing products is offered.

In this case, you will need to purchase the following items:

One tee.
Two unions with a diameter of 20 mm.
One fitting with a diameter of 10 mm.

Now the parts are being assembled using shims. Further, the branch pipes are put directly on the fittings. After that, the parts are crimped using clamps.

The technology of the work is as follows:

We cut the nozzle in the heating return line of the throttle valve. This refers to the one that is directly supplied from the top of the expansion tank. It is necessary to maintain a distance of 5 or 6 cm from the surface of the tank.
Now, from the side of the expansion tank, this pipe must be plugged. To do this, you can insert a piece of a rod or a bolt into the hose that matches the size of its inner diameter.
We crimp with the clamp of this pipe. For this, it is recommended to wrap the bolt with a special FUM tape.
We cut the pipe that comes from the bottom of the expansion tank. The incision is made in its vertical section in relation to the horizon.
In the place where the cut was made, we shorten the branch pipe by 3 cm. This is necessary so that you can put a tee there.
Now, in both ends of the branch pipe, which turned out after cutting it, we insert the selected tee.
On the tee fitting, which has remained free, you should put on the return pipe coming from the throttle valve. We remind you that earlier it was connected to the top of the expansion tank.
All fittings are now crimped using prepared clamps.

How to change the stove pipes in places on the Nexia? It is better to change them on the engine than on the radiator. As a result, the supply and return on the radiator will change places. By changing the nozzles, you can greatly improve the performance of the stove.

Now you know how to swap the pipes on the Daewoo Nexia stove.

It is possible to modify the heating system in a Daewoo Nexia car without installing a tee. It is necessary to prepare your own small piece of the brake pipe from the eighth model Zhiguli and replace it. Its length should be approximately 40 cm.

Bend the tube along the contour of the expander.
Remove the return pipe from the throttle valve.
Insert one of the ends of the prepared tube into this tank.
We connect the other end of the changed tube to the branch pipe on the damper return line.
We clamp all connections with clamps.

After all work has been carried out, the air should be expelled from the system. To do this, follow these steps:

We place the car on an inclined plane so that its rear is lower than the front.
We start the car and put it on the hand brake.
Dismantle the tank lid under the open hood.
We fill the expansion tank to the maximum level.
We increase the speed to 3000 with the help of a cable. In this case, with the other hand, we pump the branch pipe, which fits to the stove itself.
We monitor the liquid level in the tank. When it decreases, we fill it up to the maximum mark.
It is necessary to carry out such actions as long as the level in the tank is in the same state.

After all the repair work is over, before starting the trip, we check the liquid level in the tank. If necessary, we supplement it to the desired value. In a situation where these procedures do not bring the desired result, we replace the Daewoo Nexia stove.

How to remove a stove on a Nexia? To do this, you need to disassemble the entire center console. First, on the panel, remove the decorative frame of the stove and radio, slightly prying it with your fingers. Then we unscrew the 2 self-tapping screws that hold the decorative frame of the gearshift lever. We remove this frame and unscrew the screws that hold the ashtray. Then remove the ashtray and radio. Then we remove the panel of the stove control unit itself and take it out. How to get to the Daewoo Nexia stove? It is necessary to dismantle the lining of the center console and remove the plastic casing. We will see the radiator of the stove, and in order to remove it, it is necessary to disconnect the pipes. Removing the Daewoo Nexia stove with your own hands does not present any difficulty. Installing a new stove is done upside-down.

Thus, repairing and replacing the stove on your own will not be difficult. Share your experience, write how your renovation took place, what difficulties you encountered while doing this.The best prices and conditions for the purchase of new carsGreetings to all readers of my BZ. For a long time there was no news from me, and now I decided to remind myself ...
My baby's run is already tangibleand the last MOT was ... the first MOT ...
Well, actually, everything in order ...
In this post I will tell you about the next repair of the stove.
To begin with, I ripped open the panel:and so as not to lose the chips - we glue the tags)))
There is nothing difficult in parsing the dashboard - we just unscrew all the bolts, nuts and screws (the last bolt is in the engine compartment, above the cabin filter)If the stove breaks down in a passenger car in a severe frost, it will not end well for the driver, especially if he managed to drive far from home. This applies to all cars, and Daewoo Nexia is no exception. Can breakdowns be avoided Are there typical stove malfunctions on the Nexia and how to fix them yourself?The heating system in the car is arranged as follows. The engine of the machine heats up during operation. To cool it, antifreeze is used, which is poured into the cooling jacket of the motor. This liquid heats up together with the engine, and when heated, goes into the main radiator of the car. From there, through a system of pipes, hot antifreeze enters the small stove radiator, blown by a small fan. The heat from there enters the passenger compartment through special air ducts and heats it. The rear doors of the vehicle are equipped with exhaust vents necessary for ventilation of the passenger compartment. Through them, excess heat goes outside. Image - DIY stove repair on Nexia

Diagram of the main elements of the heating system at Daewoo Nexia

One feature of the Daewoo Nexia heating system should be noted here: it can work independently of the air conditioner. Such constructive solutions on passenger cars are quite rare. The Daewoo Nexia heater not only heats the interior, but also prevents the glass from freezing, and it can work together with the air conditioner. This feature is useful if the driver wishes to reduce the temperature in the passenger compartment by a few degrees without turning off the stove.

The heater electric motor is installed behind the stove radiator.This compact motor spins a plastic impeller, creating a continuous stream of air through the radiator tubes. The motor housing is metal; inside there is a rotor with a copper winding and a central shaft on ball bearings.

The body of the electric motor of the stove on the "Nexia" is made of tool steel

Metal-graphite brushes fit tightly to the rotor, removing the electric charge. The engine part number is 6841SB566905. It is compatible with other Daewoo vehicles (for example, Daewoo Espero). Cost - from 5000 rubles.

The vacuum switch of the stove on the Daewoo Nexia car is located behind the glove compartment. It is this device that is responsible for opening and closing the external air intake flap and the warm air recirculation flaps in the passenger compartment.

It is controlled by means of buttons located on the control unit of the heater. The device part number is ER200347893. The cost of a vacuum switch in Daewoo brand stores is from 600 rubles.

The Daewoo Nexia safety block is located under the dashboard, above the gas and clutch pedals. Image - DIY stove repair on Nexia

The Nexia's stove fuse is located in the lower right corner of the block: it is green

It is covered with a plastic cover, which has a sticker with a diagram of the location of all fuses and relays.

Safety block "Nexia" is located above the pedals and closed with a plastic cover

The fuse responsible for the heater is located in the lower right corner of the block and is designated as F19.

The fuse responsible for the Daewoo Nexia stove is marked with F19

In the same block there is a stove fan relay, used in situations where the stove motor is operating at low speeds.

There are many reasons why the stove can stop heating the car interior. Let's list the most common ones.

The heater radiator, like any other part, deteriorates over time. This usually happens due to the use of low-quality antifreeze with an abundance of impurities. They form a layer of limescale on the radiator pipes and its capacity begins to decrease. In the end, the liquid stops flowing into the radiator and it becomes cold in the cabin, despite the fact that the heater fan is operating normally. The problem is eliminated by replacing the radiator.

A thick layer of scale and dirt is clearly visible in the Nexia's radiator grill

Usually, a breakdown occurs when the tightness of a pipe in the heating system disappears. When air gets there, the circulation of antifreeze is disrupted, and it simply does not reach the stove radiator. The solution is to completely drain the antifreeze and then purge the heating system with compressed air.

Due to ruptures of the air duct pipes in the "Nexia" heating radiator, air jams may appear.

The vacuum switch on the Nexia is a reliable device, but the fastening strips on which it is held are rather thin and often break. This can lead to the fact that the air intake flap simply stops opening and the normal circulation of warm air in the passenger compartment is disrupted. To fix the problem, the driver will have to purchase a new vacuum switch, as separate mounting straps are not sold for it.

As mentioned above, the central shaft of a heating electric motor with an impeller is suspended on two ball bearings, which can collapse over time. If this happened, the driver, after turning on the stove, will hear a characteristic creak, gradually turning into a loud grinding. The problem can be solved only by replacing the furnace electric motor, since the bearings for it are not sold separately.

Bearings on Nexia's electric oven motors often fail

Such a breakdown occurs when the vacuum switch that controls the dampers fails. After that, the flaps are lowered to the lowest position. As a result, the access of hot air to the feet of the passenger and the driver is almost completely blocked. The problem is solved by removing the glove compartment and replacing the vacuum switch.

The control of the stove and air conditioning on the car is arranged in one control module, located on the dashboard, to the right of the driver. The buttons of this module fail quite rarely. However, the need to remove the control unit may arise if the vacuum switch mentioned above is broken. There is nothing difficult in dismantling the unit, and you only need a flat screwdriver to work.

To remove a broken device, it is wise to follow the advice of an experienced repairer:

Two deflectors are manually removed from the central duct located above the control unit, then the plastic frame of the duct, held by two latches, is removed. The frame and deflectors of the Nexia air duct have been removed, there is access to the wires of the control unit
Having put your hand through the hole in the central air duct, you need to disconnect all vacuum tubes and damper cables from the control unit. After disconnecting the wires, the "Nexia" control unit can be pry off with a screwdriver and removed from its original place
Now the control unit is pry off with a flat screwdriver and removed from its niche. The catalog number is clearly visible on the top of the Daewoo Nexia climate control unit.

As mentioned above, the stove radiator on the Nexia can get clogged. In addition, it sometimes starts to leak. This happens when its central tubes are completely destroyed by corrosion caused by the use of poor antifreeze. Since the standard furnace radiator on the Daewoo Nexia is made of aluminum, it is not possible to solder it without special equipment. So the car owner has only one way out: replacing the unit.To get the job done efficiently, follow the proven algorithm:

All coolant is drained from the vehicle. It takes 8-10 minutes to completely drain, so there is no rush.

Further, the pipes are removed from the radiator. They are held in place by steel straps, which should be loosened with a flat screwdriver.

The pipes are removed both from the Nexia expansion tank and from the heating radiator

After removing the nozzles, the radiator pipes must be plugged with something so that the residual antifreeze does not flow out onto the floor. This is best done with a piece of rag.

The pipes on the Nexia stove radiator should be plugged with a rag

Further, the steel fastening clamps that hold the casing of the furnace radiator are loosened. After that, the casing latches are folded back manually, and the radiator is removed through the engine compartment.

It is better to remove the Nexia heater radiator through the engine compartment

The defective radiator is replaced with a new one, after which the heating system is reassembled.

Since the heating system on cars of this brand has never been very powerful, many owners are making additional efforts to insulate their car. One of the ways to increase the power of the heater is to install an additional pump. As a rule, a pump is installed from a GAZelle.

As an additional pump, a pump from a GAZelle is installed on the "Nexia"

The order of installation of the device:

The heater on the Daewoo Nexia car can hardly be called a perfect device. The stove is capable of delivering a lot of problems to the driver, especially if it has been in operation for a long time. Fortunately, most of them can be solved on their own without resorting to expensive services of the service center specialists.In this video, two masters show how to modernize and repair the stove on the Daewoo Nexia N100 and eliminate factory defects in the car heating system.The first step is to disassemble the front panel to gain access to the stove radiator.The whole process of parsing is described step by step, it is indicated with what connecting elements in which places the panel is attached, how best to unscrew it, what tools to use so as not to damage the fasteners and then put the panel back in place without any problems.After the front panel is disassembled and access to the stove radiator is obtained, it is also unscrewed and removed. The removed stove radiator opens access to the damper, on which work will be done.
Due to the loose fit of the damper to the air duct, cold air enters the formed slots, which prevents the stove from warming up the interior well. The edges of the damper are degreased and glued with insulation tape, this allows you to remove all defects and ensure good closure of the damper.
In addition, to optimize the operation of the stove, an additional hole is cut out in the part of the panel to which the stove radiator is attached. This is done so that the entire radiator is blown out. From the factory, half of the stove radiator is covered with plastic, which negatively affects the heating of the passenger compartment.After completing the work, the front panel is installed back into place.This video of repairing the Daewoo Nexia stove will help car owners not freeze in winter.

Often, the owners of this popular model have to deal with the problem: why does the stove on the Daewoo Nexia heat up badly? Moreover, if the car is more or less new, then it did not go anywhere. And if the car has passed a certain number of kilometers, the heating, especially in cold Russian winters, becomes worse and worse, and no longer can be compared, for example, with the same VAZ classics.

This is not good, and you can try to fix this flaw with your own hands, of course, provided that the mechanism of the unit heating the interior is working properly, and the coolant is poured into the system, as expected and in the right amount.

Why does the heater on Daewoo Nexia not heat well? Professional repairmen identified several main reasons for this kind of problem, which we will analyze in detail with you in our article. But in the beginning, if it gets cold, and your stove on the Nexia barely heats up, we will conduct a small test experiment.

First, check the coolant levels according to the risks on the reservoir. Top up if necessary. By the way, before winter, especially if the coolant has not changed for a long time (or you bought a used car and do not know when the previous owner did it the last time), professionals advise replacing the fluid with a fresh one in order to be completely sure.

We turn on the stove with the engine running and warm up the unit. After that, we wait 10 minutes;
We manually probe the main pipe and return pipe, which are supplied to the furnace;
The pipes leading to the furnace are warm, and the rest of the pipes of the cooling system are well hot - the problem in the radiator itself is airing;
If the pipes leading to the stove are hot, then we do prophylaxis to insulate the stove unit itself.

Related article: “Why is the lower radiator pipe cold”.

Remove the tank cap and operate the gas pedal with the engine running and warm. In this situation, antifreeze begins to flow from the return to the tank. The coolant falls from a fairly considerable height, and small air bubbles appear on the surface. They subsequently lead to airing.

What do you need to avoid this effect? Craftsmen have come up with a way to return the drain from the return to the tank, and directly to the branch pipe that goes from the bottom of the tank. Experts advise to put a simple device - a tee.

You can make it according to the appropriate size and with your own hands, but the easiest way, judging by the experience of those who have already been installing the device, is to choose the plumbing options. You only need to match the dimensions (carefully measure the diameters of the tubes and adapters). And these chips are quite inexpensive.

Video (click to play).

But in order for the stove to work properly after the tuning done with your own hands, it will be necessary to expel the air from the system that had previously accumulated there. How to do it?

We put the car on a good hill, downhill. Moreover, the front should be higher than the rear. Turn on the handbrake;
We start the engine and warm it up so that the thermostat opens and circulation starts freely;
The hood must be opened. The cap from the coolant expansion tank - remove;
Pour coolant into the tank in excess of the maximum risk;
With the help of a cable, we hold 3000 rpm approximately (with one hand);
With the other hand, we pump the branch pipe that leads to the furnace with characteristic movements. In this case, you need to monitor the coolant level in the reservoir. If it falls, add it;
When the level in the tank stops dropping, the airing is eliminated. But after the performed procedure, you need to monitor the level of antifreeze for a few more days.

Rate the article:

Grade 3.2 who voted: 85