Interior heating system Kalina 1119. Design of the Lada Kalina car heater and its typical malfunctions

• 18-12-2014
• 100 256

Depending on the configuration, the layout of the Lada Kalina stove may vary. In one case, the design of the ventilation and heating system is simple and reliable, in the other, temperature control in the car interior is controlled by automation and electronics. Let's look at the operating principle of the Lada Kalina heater in different modifications.

Heater device Lada Kalina

Air from the street enters the air intake through the air filter. The air is then forced into the ducts by an electric fan. The interior is heated by a heater (heater radiator), which is installed under the panel. When the engine is running, heated coolant circulates through the radiator, heating the air passing through it. The amount of air passing through the radiator and bypassing it is set by the central damper. The fan speed is adjusted, as well as the heater dampers are controlled using a control unit installed on the panel.

1 — heater fan electric motor; 2 — heater fan casing; 3 — air recirculation damper; 4— air ducts; 5 — heater casing; 6 — inlet pipe of the heater radiator; 7 — heater radiator outlet pipe.

The Lada Kalina heater dampers are controlled by a mechanical control unit. When the handles on the block are rotated, the rods are wound/unwound on a special roller inside the control unit. The rods have the following purpose:

1. Recirculation flap drive rod.
2. Drive rod for the heated windshield flap.
3. Leg heating flap drive rod.

Thus, the Lada Kalina stove dampers are controlled mechanically without the use of automation. The only electronic part in the design is an additional resistor, which, depending on the position of the handle on the heater control unit, determines the fan rotation speed. This operating principle is very simple and reliable.

Video

Tools:

• Open-end wrench 10 mm
• Open-end wrench 13 mm
• Open-end wrench 17 mm
• Medium Phillips screwdriver

Parts and consumables:

• Gasoline/kerosene
• Rags
• Sealant
• Automotive compressor
• Cylinder head cover gasket (if replacement is needed) -2108-1003270-10

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The crankcase ventilation system of the VAZ Lada Kalina 1118 tends to accumulate tarry deposits from crankcase gases, which make it difficult to remove these gases into the engine cylinders for combustion. Because of this, the gas pressure inside the engine increases and oil leaks through the seals appear. We recommend cleaning the crankcase ventilation system before each oil change.

1. Remove the decorative plastic engine cover.

2. Loosen the clamp and disconnect the hose of the large branch of the crankcase ventilation system from the air supply pipe.

3. Disconnect the second end of the large crankcase ventilation system hose from the fitting on the cylinder head cover and remove the hose.

4. Similarly, remove the hose of the small branch of the crankcase ventilation system by disconnecting it from the fittings of the throttle assembly and the cylinder head cover.

5. Remove the supply hose of the crankcase ventilation system by disconnecting it from the fittings of the cylinder block and the cylinder head cover.

Climate control Lada Kalina Lux

The system design is similar to that described above, with the exception of some details. To maintain a given temperature in the cabin, two new elements are used in the design: a temperature sensor in the cabin (built into the ceiling light) and a damper micromotor reducer. Also, the mechanical control unit has been replaced with an electronic one, with degrees of air temperature in the cabin marked on it.

The operation scheme is as follows: the control unit periodically receives a signal from the temperature sensor in the cabin and compares it with the temperature set on the unit. If the difference is too large, the control unit sends a signal to the micromotor gearbox, which already controls the heater dampers (opens or closes hot air from the heater).

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How to change a radiator

The operation is very labor-intensive, for which the car service center will charge you a hefty sum. But there is another, slightly barbaric, but fast and widely practiced method. The work flow diagram is as follows:

1. Drain the antifreeze, disconnect and remove the battery, and then disconnect the hoses from the heater pipes.
2. Unscrew the nut located near the fittings in the engine compartment. It holds a steel plate that will interfere with the removal of the heater.
3. Remove the gas pedal and pull out the steel brake pedal shaft. Unscrew the decorative panel and behind it the plastic panel covering the stove radiator.
4. To remove it, cut an opening in the plastic frame that allows you to pull the radiator towards the driver.
5. Install the new element and reassemble in the reverse order. The cut opening can be sealed with plastic and decorated in any suitable way.

When performing the operation, it is worth moving the controller located directly under the stove to another place. Antifreeze dripping from it can damage sensitive electronics. Also, with the radiator removed, it is easy to change a faulty heater valve or gear motor, because access to them will be open. The gearbox is a single unit with a damper position sensor and can also be changed entirely.

Interior ventilation of Lada Kalina

Air is extracted from the passenger compartment in all trim levels due to the vacuum generated near the rear of the body when the car is moving. Exhaust deflectors are built into the body under the rear bumper.

See also other reviews of Lada Kalina.

Keywords: Lada Kalina stove | air conditioner Lada Kalina | air ducts Lada Kalina | Lada Kalina filters

The vehicle's heating system must work properly. It is not difficult to achieve uninterrupted operation of the stove if you know the structure of the Lada Kalina stove. The heater creates a comfortable stay in the car interior, creating visibility for the driver. The stove design provides for the use of small-class machine options. The production of Kalin cars began over ten years ago. The following options are included for the base model:

• Anti-lock braking system.
• Airbags.
• Electric power steering.

New Lada Kalina models were developed, which were already equipped with additional options:

• Electric door window lifts.
• Reliable heater.
• Heated seats.
• Interior air conditioning device.

Cabin filter

Kalina heater diagram

The Lada Kalina heater device is designed for heating and cooling the car interior. If the car does not heat up, the windows fog up, or you feel discomfort, then you need to test the performance of the heating system. Understand the functioning of the stove on Kalina.

General layout of the Kalina stove

The location of the stove was designed for easy installation of an air conditioner. The system is simple, but at the same time quite reliable.

1. Left side flow outlet.
2. Left air duct.
3. Heated side window.
4. Air flow splitter.
5. Stove.
6. Right ventilation duct.
7. Right side flow exit.
8. Bottom heating duct.
9. Interior heating duct.
10. Central outlet of ventilation flows.

The supply and exhaust principle is used. The air masses inside the car are heated using a special liquid, which simultaneously cools the engine. The operating principle of the Kalina stove is based on the fact that the liquid warms up the radiator, where heat exchange occurs, and the heated air passes into the cabin through the air ducts.

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If we analyze Kalina’s heater, the operating principle and the heater circuit will differ in configuration. The first option has a simple and reliable design. And in the other - full electronic control. The air passes through the filter into the air intake, and then the fan blows further through the system. The engine is running and warmed up. Antifreeze moves through the system in which the heater radiator is involved.

The amount of air that is heated by the stove radiator is regulated by a damper. Controls the operation of the fan and dampers by a unit located on the central panel.

Heating device control unit

1. Temperature regulator. We change the heating of the air flow by turning the knob. The blue zone produces cold air, the red zone produces warm air.
2. Fan speed switch. By turning the knob clockwise, the intensity of the air flow is adjusted. Choose one of 4 fan speeds.
3. Air flow separation selector. Distributed in specific areas:

The flows pass through the upper part of the cabin.

The air is directed downwards.

Air flows are directed onto the windshield and down.

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Air flows are concentrated in the area of ​​the windshield, as well as the side ones.

1. The handle that controls the recirculation of cabin air. We turn on the mode when driving off-road or in a traffic jam. Used for a short time, the glass fogs up.
2. Rear window heating mode switch.

We regulate the direction and saturation of air flows through aerodynamic devices. We turn the guide blades and change the position of the dampers to achieve the desired air direction.

Interior ventilation of Lada Kalina

The outlet pipes are located in the car body under the trunk. The heater is located under the dashboard. The air flow enters the car interior through an intake, which is designed in front of the windshield in the engine compartment. The air enters through the filter and is accelerated throughout the cabin under pressure created by the fan.

1.Pipes for supplying air to the rear of the cabin.

2.Side ventilation nozzles.

3.Blowing the side windows.

1. Windshield blower nozzle.

5-6-7. Central deflectors for flows entering the car interior.

We direct the supply air through the deflectors by turning the handwheel. If we turn it up, the flap opens and vice versa. You already understand how the stove on Kalina works.

Electrical diagram of the Kalina stove

1. Relay with fuse assembly.
2. Mode switch.
3. Resistor.
4. Electric stove motor.
5. Egnition lock.

A. To the power source.

Diagram of the standard crankcase ventilation system

The crankcase ventilation system of VAZ engines consists of two circuits that operate at different load modes and speeds:

• The small ventilation circuit is connected to the valve cover and the intake manifold (behind the throttle body). This connection diagram provides intensive crankcase ventilation due to the vacuum that occurs in the intake manifold when the throttle is closed. To avoid an effect such as hyperventilation, the cross-section of the small circuit is limited by a jet in the cable throttle body with a diameter of 1.7 millimeters. This circuit operates in the region of 800-1500 rpm.
• A large ventilation circuit is connected to the valve cover and the air pipe (in the pre-throttle space). This scheme provides intensive crankcase ventilation at high speeds. The cross section of the large contour is 16-18 millimeters

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Examples demonstrating the shortcomings of the standard crankcase ventilation system:

• A car is going down a hill with the gear in gear. In this mode, the engine operates at higher speeds with a reduced load. A high vacuum is created in the crankcase, and a large ventilation circuit is connected, in which there are no control valves. Since both circuits are connected to one volume of the oil trap, a strong vacuum in the crankcase will draw a fresh portion of air bypassing the throttle. The mass air flow sensor will show increased air flow, and the ECU will try to close the throttle. Having realized that this is not possible (it is already closed), the lean mixture will be corrected by increasing the fuel supply (fuel consumption will increase). As a result, the entire internal volume of the engine will work as a parallel receiver of very significant volume, connected to the intake, bypassing the throttle. It is this volume that will interfere with the formation of a high-quality mixture.
• A car in a traffic jam drives under tension with additional consumers (for example, the air conditioner is on). The compressor clutch is connected, the load increases abruptly. The engine does not have enough air, it begins to pull it from the crankcase, bypassing the throttle. But the ECU is also aware of the clutch engagement and also supplies more air by opening the throttle. The vacuum drops sharply, the vacuum brake booster (VBR) does not have enough strength to hold the car. Leap forward. The ECU sees an increase in oxygen and closes the throttle. A sharp increase in vacuum, VUT seizes. The car jerks, the transmission hits. And so on ad infinitum.

As a result, in both cases, when the engine is running, speed jumps occur and the engine choke under the load. Jerking and vibration are possible on manual transmissions, automatic transmissions and automatic transmissions. To eliminate these shortcomings, it is proposed to modify the design according to one of the presented schemes.

Checking ventilation and stove Lada Kalina

Car owners claim that Kalina’s heater heats much better than previous VAZ models. It sometimes breaks down and requires repair. Do a full system diagnostic to ensure it's working properly.

1. We start the car engine.
2. Turn the left handle counterclockwise and place it in the blue zone.
3. We place the fan speed switch in each of the 4 positions one by one. If the fan does not rotate in one of the positions, then check the power supply circuit of the device.
4. Turn the speed controller to maximum.
5. Using the right handle (damper control) we check the redirection of air flows. If we notice that there is no change, then the damper drive needs to be repaired.
6. Warm up the engine to 90°C. Turn the left handle to the extreme position of the red zone.
7. The air that comes out of the panels should blow warm air.
8. Return the left stick to the blue zone. Cold air will come out of the nozzles again.
9. If the temperature of the air flow does not change due to a change in the position of the regulator, then the control of the central damper drive is faulty.

The car owner may not immediately understand that the Kalina interior heater, the circuit of which is simple, is damaged. You constantly add antifreeze in small quantities, and the carpet in the cabin is dry and there is no smell of antifreeze. A stove leak does not appear immediately, and the main thing is that the liquid can evaporate. The radiator on Kalina does not have pipes leading into the cabin that could leak.

Fan replacement

The most convenient way to get to the unit is from the passenger seat, which will have to be dismantled so that you don’t have to do acrobatics inside the cabin. The chair runners are held in place by 4 13 mm nuts; unscrewing them is not difficult. Further work on replacing the fan is carried out in the following sequence:

1. Remove the cabin filter and remove dirt and dust from the opening.
2. Unscrew 4 screws located on the back wall of the glove compartment, and another one under the right heater grille.
3. Remove the plastic cover from the stand and unscrew the 2 screws that secure the panel and the blower unit.
4. Remove the blower unit, lift the plastic panel and loosen the 2 fan mounting nuts underneath it.
5. Move the dashboard as far back as possible and secure it. The turbine must be removed from below, from a lying position.

You should not rush to change the fan when it only works at speed 1 and the heater switch is at maximum. This is a sure sign that the resistor located below the glove compartment has failed. The part is a small green plastic panel with a connection connector. Replacing the heater resistor is carried out without any disassembly; you just need to disconnect the connector and unscrew the 2 screws that secure it to the body.

Basically, troubleshooting the Kalina stove is not a difficult job, but very labor-intensive. To change a small part, you need to spend time disassembling to get to it.

Possible heater malfunctions

Your stove is not working or is not heating well. Look for the cause of the problem. The fan does not work or the heater radiator is leaking - obvious breakdowns that occur at any time.

Stove control unit:

• The engine was warmed up, but warm air did not enter the cabin.
• The damper drive cables may have come off. The only solution is to remove the console.

Dampers . Partially open or close. The rubber seal has come off in the air duct or foreign objects have gotten into it.

Antifreeze circulation . Start the engine and check the level in the expansion tank, and also check for any disturbances in the normal flow of antifreeze. Possible reasons:

• Pump. Cannot be repaired, only replaced.
• The cooling system is clogged. Clean or rinse.

Checking the thermostat . Warm up the engine to 75°C. If the upper pipe is cold, then the thermostat does not work correctly and does not allow coolant to move in a large circle. Replace the device.

Air lock . Remove the plug from the vehicle's engine cooling system.

Temperature sensor . Constantly blowing cold or hot air. If cleaning the contacts does not help, then replace the non-working temperature sensor.

Air filter . If the air flow is weak and there is no desired temperature, then replace the filter. Be sure to check the heater resistor, which controls the rotation of the fan and is located under the glove compartment.

Electric fan . The device does not turn on regardless of the selected mode. Check the fuse that controls operation. If the fan is turned on and its operation is accompanied by strange sounds, clean or replace it.

Dampers . It is difficult to determine the breakdown unless you replace the dampers themselves.

The cause of a heater malfunction may be a depressurization of the car's engine cooling system. The types of breakdowns described above cause malfunctions in the operation of the Lada Kalina car's stove. Such breakdowns do not require special knowledge; they are easy to understand and repair.

Diagnosis and troubleshooting

The easiest way to resolve the issue is regarding the cabin filter. For the first time, thorough blowing of the element will be enough, but then it is better to replace it. The real problem is a leaking radiator or a broken fan; an expensive replacement of the unit cannot be avoided. An equally high price will have to be paid for a new control unit.

It will be somewhat cheaper to install a new temperature sensor, gearmotor or resistor for the Kalina heater. Moreover, the malfunction still needs to be correctly diagnosed, which can be quite difficult. A burnt resistor is easily identified - the fan only runs at maximum speed.

It is more difficult to check the sensor hidden in the lighting shade. Symptom of a malfunction - a hot or cold stream flows from one or more grilles, regardless of the position of the regulator handle.

It is more difficult to detect how well the mechanical heater regulator is functioning. To do this, you need to get to it by disassembling part of the front panel. In the same way, the proper operation of the air dampers is determined.

To carry out diagnostics, it is better to start searching for problems with the most accessible elements, and only then start disassembling.

Summary

The Lada Kalina car is available with a ventilation and heating unit or with an air conditioning unit. For the first option, it is impossible to provide a cabin climate whose temperature will be lower than the ambient temperature.

The heating system in the cabin of the budget Lada Kalina model can significantly increase comfort for the driver and his passengers. It ensures that the required temperature conditions are maintained inside the car. Along with such useful options as:

• "ABS";
• airbag;
• electric power steering;
• electric front windows;
• front seat heating function,

The design of the interior heater allows the manufacturer to achieve a fairly acceptable level of equipment, which is very worthy for a small-class Lada Kalina model and makes it competitive among its rivals in this segment.

Let's sum it up

The heating system is simple. Timely diagnostics can save the owner of a LADA Kalina from unexpected breakdowns; the heater circuit will also help with this. Monitor the level of antifreeze, change it according to the regulations, and the system radiator will serve its regulated life, delighting you with warmth and comfort in the cabin.

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These system elements are very important. Therefore, the compliance of each part of the system must be carried out deliberately. The garage heating assembly has certain parts. The heating installation includes air vents, fasteners, pipes, a connection system, manifolds, batteries, thermostats, an expansion tank, pressure-increasing boiler pumps. On this tab we can select the necessary structural components for your cottage.

Heating system composition

The operating principle of the heater in the Lada Kalina is very simple. It is built on a supply and exhaust circuit. The heater circuit contains:

• cabin air filter;
• air ducts;
• heater radiator;
• electric fan;
• air flow and fan operating mode control module.

The design of the interior stove looks exactly like this, and is located behind the dashboard and only the system controls are present on its front surface in the Lada Kalina cabin. A running engine generates heat, which is removed from it by the cooling system. This circuit includes a heating radiator. The circulating liquid heats the honeycombs, from which the warm flow is directed into the cabin by means of a fan. Adjustment of the required temperature, strength and direction of the air stream is carried out using the handles and dampers present in the cabin. Sometimes the dampers need to be adjusted.

The air taken from the external environment initially passes through the intake element located on the hood at the bottom line of the windshield of the Lada Kalina. Next, the air rushes to the filter component and is supplied inside the cabin space by means of a fan.

The fan can operate in 4 different speed modes. The adjustment is carried out using the corresponding knob on the device, and the switching itself is possible due to the presence of a resistor block in the control module.

Lada Kalina errors on the instrument panel

Replacing rear brake pads Kalina video

Idle speed sensor Lada Kalina

Modification of the crankcase ventilation system Kalina 8 valves

This system could be improved a little. One of the 3 pipes supplies crankcase gases directly to the throttle valve assembly next to the IAC. If they contain oil, it will definitely settle there. This is how the IAC becomes clogged. So, to avoid this, you can embed a regular fuel filter right in the middle of this pipe.

It will trap oil particles contained in crankcase gases. After a few hundred kilometers, you will see for yourself. Monitor the condition of this filter and promptly change it to a new one. On average, as practice shows, it needs to be changed every 1000 kilometers.

How to diagnose a heating system in Kalina?

Before performing a diagnostic procedure, you will need to carefully study the diagram. You should only try to check while the engine is running.

1. The temperature regulator, located on the control unit in the cabin, is installed in the extreme left position. We activate the fan and observe hot air entering the cabin through the deflectors. Gradually moving the handle to the right until it stops, we reach the exit of the cold air stream.
2. Checking the speed should begin by setting the appropriate knob to the minimum speed position. If the fan and its control module are working properly, then the force of the air stream should increase as the handle is moved to subsequent positions (and so on until the 4th speed mode, corresponding to the maximum number of revolutions).
3. We check the dampers. Here we move the temperature level regulator to the maximum to the left position. We move the fan speed switch to the position corresponding to the 4th speed. The check itself boils down to smoothly moving the damper regulator between the extreme positions. This should be done in order to feel the adjustment in the direction of flow. By moving the temperature regulator to different positions, we observe a change in the degree of heating of the incoming air.

List of faults in the heating circuit

If the owner of LADA Kalina suspects the presence of any deviations from the normal functioning of the heating system, then the diagnostic procedures below will be required.

1. The first step is to make sure that there is a sufficient amount of antifreeze in the cooling circuit.
2. Next, check the integrity of the fuse.
3. We make sure that the fan speed regulator is working properly.
4. A weak air flow through the deflectors indicates the need to check the condition of the filter component.
5. If there is no warm flow into the cabin when the engine is warm, then there may be air pockets in the cooling system or the dampers in the air ducts are jammed.
6. A faulty temperature sensor will cause only hot or, conversely, cold flow to enter the cabin.
7. Among the common reasons is depressurization of the LADA Kalina cooling system. Sometimes this may be due to the loss of tightness of the heater radiator itself. At the same time, antifreeze will enter the cabin, giving itself away as a specific smell and wet decorative floor covering. In order to detect a leak in a timely manner, it is necessary to monitor the level in the expansion tank frequently.

The main reasons why the stove on Kalina does not work

Of course, the stove on Kalina heats just fine, but, like any mechanism, it tends to wear out. And problems begin: the fan doesn’t spin, or it just doesn’t blow well. Or the stove is blowing cold air.

But don’t be upset, because this can all be fixed. Let's look at the main reasons why the stove does not heat well and blows cold air.

Stove fan

If necessary, it must be replaced, and if possible, repaired. But first check the fan fuse in the mounting block, it may have simply blown.

Coolant level

If necessary, add coolant level

Adding coolant (video)

Airing the system

Remove the air and be sure to find where this air may be getting into the system.

Heater radiator

Of course, changing a stove radiator is still a pleasure. And the price for repair work is not low. Well, what to do if it’s cold in the cabin and you know for sure that the reason is in the radiator.

Removing and replacing the stove radiator (video)

Faulty thermostat

In most cases, the thermostat is 80 percent to blame. Replacing with a new thermostat will help.

How to check the thermostat (video)

How to replace the thermostat on Kalina (Video)

Faulty pump

The pump is a kind of pump, if necessary it also needs to be replaced.

Cylinder head gasket

Expansion tank cap

Replacing the expansion tank cap (video)

Operation of air regulators

The air regulator cable has come off (video)

Dirty cabin filter

Replacing the cabin filter Lada Kalina (Video)