Replacing the radiator of a Priora stove with HALLA air conditioning. How to change the radiator of a Priora stove without air conditioning

December 11, 2015 Lada.Online 154 394 2

One of the reasons for poor heater performance is the heater radiator. During the operation of the car, it begins to leak and is no longer able to transfer the required amount of heat to the interior. Depending on the year of manufacture and configuration of the Lada Priora, the process of removing the stove (radiator) can vary greatly.

How to replace the radiator of a Priora stove with air conditioning

A failed stove in winter is a very serious problem for the owner of any car, including the Lada Priora. It should immediately be noted that there can be many reasons why a breakdown occurred. Sometimes it will take very little time to eliminate them, but in some cases you will have to tinker. However, often there is nothing particularly complicated in such work, and it is quite possible to do it yourself, even if you have never done anything like this before.

How to replace the heater radiator of a Lada Priora with air conditioning

As mentioned above, there can be many reasons why warm air has stopped flowing into the cabin while the heater is on. First, let's briefly look at the design features of the Priora heating system, as well as its main elements. There are no particularly complex electronic devices here - everything is done quite simply, and therefore reliably. The stove on the VAZ-2170 is of a liquid design, and it is combined with the engine cooling system. In fact, here is a classic scheme where antifreeze is heated and warm air is supplied to the car interior. The main elements of the system are:

radiator;
fan;
2 dampers, with which you can regulate the strength of the flow of warm air and its distribution among the zones of the cabin.

For those who have previously had to deal with the heating systems of VAZ cars, there is essentially nothing new here. The coolant is heated in the radiator, after which the warm air is blown into the passenger compartment by a fan. The driver is able to regulate the intensity of the flow, as well as distribute it throughout the cabin.

It should also be noted that Priora can be found in two different trim levels - with and without air conditioning. In the first case, VAZ installs devices from Panasonic or HALLA on the model 2170. At the same time, cars with air conditioning turned out to be more convenient in terms of maintenance and repair of the heating system, since access to its components was significantly simplified.

In particular, in order to remove the radiator, it is no longer necessary to dismantle the decorative trim of the windshield. In addition, there is no need to remove the wiper arms. There is also no need to remove the brake booster and heater. All this saves a lot of time; accordingly, all the necessary work can be done faster than on a Priora without air conditioning. Yes, there shouldn’t be any difficulties with this.

In order to remove the heater radiator on a Priora with air conditioning, you will need a minimum set of tools. In particular, you should take:

wrenches - 8, 10 and 13;
Phillips screwdriver;
container for draining coolant.

Having prepared everything you need, you can start working.

The first step is to remove the rubber seal from the windshield trim - this is necessary in order to gain access to the components we need. The next stage is dismantling the middle part of the engine compartment sound insulation. To do this, you must first remove the hoses from the mounts. It should be noted that in the upper part the sound insulation in the Priora engine compartment is held in place by 3 self-tapping screws, in the lower part by 3 screws, 2 nuts and a washer. Some of the mounts are quite difficult to reach, so it is recommended to use special tool extensions.

After the middle part of the sound insulation is removed, you will see a foam rubber seal - it covers the stove radiator. To dismantle the cover, you will need to unscrew the 3 screws available here - 2 are located at the edges, the third is in the middle. As a result, we have already reached the pipes - they will also need to be removed. To do this, you must first loosen the clamps holding them. After this, you need to carefully, without tilting the hoses down, pull the pipes up. That's all - all that remains is to pull the heater radiator towards you. This also needs to be done quite carefully, without making serious efforts. Pull the radiator towards you until it comes out of the corresponding fasteners.

It should be noted that it is not necessary to drain the coolant when performing such work in a Priora with air conditioning. Antifreeze will only come out of the expansion tank, and a very small part of it will come directly from the radiator itself. It was said above that the Prior family is equipped with air conditioners from different manufacturers, but this point does not in any way affect the sequence of actions when removing the heat exchanger. The differences here are quite insignificant - only in the number of fasteners. Well, the work itself, as you can see, is very simple. You should not have any particular difficulties when removing the heater radiator. If you are doing this kind of work for the first time, just take your time and remember to be careful.

Replacement option for a car without air conditioning

The replacement of the radiator of the Priora stove without air conditioning begins with zeroing the negative terminal of the battery. Then the windshield trim is removed along with the wiper seats to facilitate the work process. The further operation is performed in stages:

The tubes supplying the refrigerant to the injectors are removed.
The cover is removed by unscrewing seven screws.
The tightening element on the hood seal is unscrewed.
The flat plugs on the engine sound insulation are pryed off and turned out.
The insulating elements are removed along with the linings.
The clamps on the radiator pipes are loosened and removed. You will need to prepare a container for draining the antifreeze.
The wiring connected to the heater is removed.
The wire holder is removed and moved to the side.

Replacing the heater radiator on a Priora with and without air conditioning

With the onset of cold weather, the driver's interest in the operation of the heater increases sharply. The motorist checks the stove for various faults. In some cases, a radiator failure is detected. How is the radiator of a Priora stove replaced? As a rule, this component cannot be repaired and must be replaced. Having opened the dismantling manual, the driver may discover that the parts in his Priora are located differently than in the instructions. It's all about the air conditioner. The process of removing the heater radiator in older versions of Priora without this option differs from dismantling it in new cars where air conditioning is already present. We will look at both options.

Modern Priors are equipped with Halla or Panasonic air conditioners. There are differences in the operation of the two models, but the location of their installation does not differ, depending on the air conditioner brand, so the process is the same. As an example, we will consider a Priora with Halla air conditioning.

Symptoms of a problem

The Lada 2170 model received a liquid heater, which is connected to the engine cooling system. The radiator is a heat exchange device; due to this component, the air entering the Priora’s cabin is heated. Coolant constantly circulates through the radiator; this part of the heater is subject to wear.

It is worth checking the radiator in the following cases:

The stove stopped heating properly.
The coolant level drops.

Once you disassemble part of the heater system, you will see a rusty and most likely leaking radiator. There may also be leaks in hoses, pipes and the junctions of these elements. You should check the heat exchanger of the stove only after you have made sure that there are no defects in the operation of the gearmotor and damper.

Replacing the radiator of the Priora stove

To work, you will need a standard set of tools, which includes socket wrenches 10 and 13, side cutters, a Phillips screwdriver, and a wrench 8. In both cases, you will have to disconnect the heating system hoses; the remaining coolant will pour out of them, so immediately place containers under the pipes heater Then the liquid can be returned to the system.

With air conditioning

First of all, we need to remove the rubber seal of the windshield to gain access to the parts;

As you can see, dismantling the radiator in a Priora with air conditioning does not require draining the antifreeze. Coolant will only come out of the expansion tank and the heat exchanger itself. Removing the radiator in a VAZ 2170 with Panasonic air conditioning follows the same scheme, only a few fasteners may differ. Now you can replace your worn-out heater with a new one!

Without air conditioning

Work begins by disconnecting the negative terminal of the battery. We remove the windshield trim along with the windshield wiper arms, as these elements will interfere with operation;
The next step is to remove the coolant supply pipes to the engine injectors;
The windshield trim is held in place by seven screws. Unscrew it to completely remove the element;
Now we move on to the hood seal, in its center you will find a tightening screw - unscrew it;
The engine noise insulation closes the passage to the heater system - pry up the plugs with a flat screwdriver and unscrew the plugs;
We unscrew the screws and dismantle the sound insulation. Remove both covers;

Clean the heat exchanger and inspect it for damage. If cracks are found on the plastic elements, then you will no longer be able to repair the part - only replacing the stove radiator on a Priora, which is done in the reverse order, will help here.

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Enter the text of the comment: the climate control does not work, not old, not new, the heater damper opens and closes all the way to the MMR, I change it every year in the spring, the damper does not close, I have to remove the MMR in the fall, everything is new on the computer, the regulator works

I unscrewed the 4 screws that hold the plastic plate near the heater radiator pipes, but for some reason it does not come out of the heater. Priora with Panasonic. I would be grateful if you could tell me.

Signs of trouble

The VAZ-2170 is equipped with a standard liquid-type heater, which interacts with the cooling system of the power plant. Refrigerant circulates regularly through the heat exchanger, which is a factor influencing corrosion and wear of the part.

Replacing the Priora stove radiator may be necessary if the following symptoms are present:

The heater stopped heating normally.
The coolant level has dropped noticeably.

First, you should check the heating element visually. It is necessary to disassemble part of the assembly and inspect the radiator. If traces of rust or limescale are visible, the heat exchanger is likely to leak. It is first necessary to examine the supply and connecting hoses, fixing couplings, damper and gearbox.

Replacing the radiator of a heating device in a Lada Priora car

Almost every motorist who owns a domestic vehicle discovers a malfunction of the car’s heating unit in the winter. After all, only with the onset of severe cold does a person begin to think about how to avoid freezing while driving a car. Naturally, everyone uses a stove for this.

However, what should those for whom this very device has ceased to function properly do? After all, only the heater can ensure that the cabin maintains a normal temperature, allowing for comfortable movement.

In this article we will look at only one reason why the heating device stops working, we will learn about the principles of repairing and replacing the heater radiator installed in a Lada Priora car.

If the motorist is sure that it is necessary to replace the heater core, it may take a lot of time to eliminate the faulty object, since most likely, in the process it will be necessary to replace not just a blown fuse, but to carry out more serious repair work. True, you should not immediately despair because of your ignorance; the material contains detailed instructions to help everyone understand how to replace the stove radiator in a Priora with and without air conditioning.

Replacing the radiator of a heating unit in a Priora that is not equipped with air conditioning

Replacing the heater radiator on a Priora without air conditioning may make sense if warm air has stopped flowing into the cabin, while the heater itself is working. If, in addition to the above problem, there is also a water leak from under the Priora stove, the motorist will have to remove the poorly functioning unit in order to solder the latter. Sometimes repairs are impractical and you have to replace the old device with a new one.

So, first of all, you need to start by removing the negative terminal from the battery. The fact is that the issue here is not only about the safety of the master himself, but also about additional insurance, which allows him to avoid several unpleasant surprises that, if handled carelessly, can arise not only with wiring, but also with electrical equipment.

If you are replacing the heater radiator on a Priora without air conditioning, after de-energizing the system, you can begin to dismantle the windshield trim. At the same time, the wiper levers, which can cause future discomfort during operation, should also be removed.

After this, you should rid the unit of all plastic tubes through which the liquid located in the windshield washer reservoir goes directly to the nozzles. Only after all the above steps have been completed will it be possible to remove the decorative trim located along the edges of the windshield.

In fact, it’s easy to carry out such a manipulation - just get rid of seven self-tapping screws.

Replacing the heater radiator on a Priora can only be done after removing the hood seal. Before dismantling, it should be noted that in the middle of the lining there is a screw that tightens both halves of the structure. Using a screwdriver or any knife, you can gently lift the plugs (this element serves as the “cover” of the screw) and unscrew them.

After this, you can begin to remove the sound insulation, which is located in the power unit compartment. To do everything correctly, you will have to unscrew the screws and remove the pads (there is no clear rule about which of them to remove first: left or right). Then you should get rid of the pipes that go directly to the radiator. A person who wants to understand how to get to the heater radiator on a Priora must loosen the clamps holding the structure itself.

After this, you can remove all the wires going directly to the stove from the connectors. You can remove them using two keys, in particular, one “10” and the other “8”. After unscrewing all four nuts, move the wiring harness to the side, which is held by the holder.

The “13” key will help to dismantle the bracket located on the brake pedal. Only after this can you begin to remove the heater radiator on a Priora that does not have air conditioning. A regular Phillips screwdriver will help you dismantle the device, allowing you to remove 3 screws.

All the rest of the work consists of installing a new unit and reassembling the system in the reverse order of the described actions.

In fact, there is another way to replace the system element of interest. To open free access to this element, dismantling not the stove body, but the vacuum brake booster will help. It is worth noting that this procedure will only be successful if the brake pedal is removed along with it. Such actions help to get closer directly to the left side of the stove and the desired device.

Changing the cabin filter

There are Lada Priora configurations that include air conditioning. It could be HALLA or Panasonic. Owners of such cars are also concerned about replacing the stove on a Priora with air conditioning. But first, it’s worth understanding the air conditioners themselves, which differ not only in the country of manufacture.

HALLA is made in Korea and Panasonic is made in Taiwan. You can find out which air conditioner is installed in your car by visual inspection. Attention should be paid to the button, which is located in the center of the air conditioner control panel. Panasonic system has a button to turn it on, but HALLA does not have such a button.

Car owners should change the filter regularly. so that there are no foreign odors from the street in the cabin, and the air is clean. Before you find out how to change the heater filter on a Priora, you need to know the type of system that is installed in your vehicle. After all, each cooling system model has different filter elements.

The filter changes differently depending on whether the car has air conditioning or not. If the car is not equipped with an air conditioning mechanism, then proceed as follows:

Open the hood.
We dismantle the grill installed under the glass on the left. There are screws on it, closed with plugs. They need to be unscrewed. After completing this step, access to the filter will be freed.
The cleaning component cover is held in place by four bolts that must be removed.
We remove the cover, which will allow us to get the filter. We clean the vacated area from possible contamination and debris.
We install a new filter element and assemble the car in the reverse order.

If the car has a cooling mechanism, the actions will be slightly different.

Open the hood and find the required part.
We bend the upholstery material.
If Panasonic is installed, then the latch on the filter element must be unscrewed. With a Hull cooler, you will need to press the latch, which will open the lid.
We take out a filter that has already served its purpose and in its place we put a new one, which will need to be twisted using the slots in the housing.
We install the cover and all parts in their place.

Repairing the Priora stove may be associated with a number of problems that initially need to be correctly diagnosed. We will write several more articles on this topic and consider the main problems in detail. In any case, you need to know how to disassemble the stove on a Priora, because this is the basis.

Radiator malfunctions and their consequences

A broken device poses a great danger to the entire cooling system, since its instability can lead to overheating of the power plant. The Lada Priora uses a standard combined cooling system, when the liquid system is supplemented by an air system. Thanks to this combination, it is possible to more effectively maintain the optimal engine temperature under various loads and operating modes.

There are not many malfunctions of this element as such. The main problem with the radiator is the occurrence of coolant leakage. This happens due to a violation of the integrity of the tubes caused by damage to the radiator. Another common problem is clogging of its inner surface. This can be determined due to the constant operation of the forced cooling fan.

The temperature drops, but rises quickly and causes the ventilation unit to turn on again, even when driving at high speed. This is due to the fact that the oncoming air flow cannot cool the coolant due to dirty plates. Contaminants can also be deposited on the inner walls of the radiator tubes, which will impede the circulation of antifreeze. And, as a result, the engine will begin to heat up excessively.

When the device is broken, the power unit overheats.

Causes of malfunctions

The main factors causing problems with the radiator are the following:

wear of elements of a natural nature (any part sooner or later wears out and fails);
mechanical impacts leading to damage and deformation;
operating the engine in violation of the manufacturer's requirements and recommendations.

Breakdown can be caused, among other things, by the use of low-quality coolant, mixing antifreeze with other types of antifreeze, and the use of all kinds of sealants that can clog the pipes and affect the circulation of the coolant (coolant). At the same time, the human factor cannot be ignored when, due to incompetence in matters of radiator maintenance and repair, a part has to be replaced.

Often, simple dirt and poplar fluff that clog the plates can cause the engine to heat up. Due to systematic overheating, the fuel in the cylinders begins to detonate due to the increased temperature of the coolant. As a result, the cylinder head burns out, the block itself becomes deformed from high temperatures, and cracks appear. And ultimately, the destruction of the piston group and crank mechanism completes the picture. It's not far from a major, expensive engine overhaul.

You need to carefully monitor the condition of the cooling system and the radiator in particular.

Signs of trouble

Even a beginner can determine that there are some problems with the radiator. This does not require special knowledge. It is enough to understand in general terms the principle of operation of the cooling system of the Lada Priora.

Troubleshooting

Symptoms	What are they related to?
On the instrument panel, the arrow of the coolant temperature indicator constantly approaches the red zone.	This provokes the inclusion of forced cooling and indicates engine overheating.
Constant overheating can also be determined by the deposit on the spark plugs.	During normal engine operation, the coating is sand-colored; when overheated, it is white.
It is necessary to carefully monitor the level of coolant in the expansion tank.	A sharp or gradual decrease in level will indicate the presence of a leak, which may be associated with a leak in the radiator.

Low coolant levels will also lead to rapid overheating. It is easy to find a leak by characteristic smudges on the surface, as well as by the presence of antifreeze or antifreeze where the car is parked.

Fan doesn't work

But sometimes another problem occurs with the Priora stove. The driver turns the heater switch, and in response there is silence. The electric motor is not working. What is the reason. There may be several of them:

The fan motor burned out.
The heater control unit has failed.
The fan speed resistor has burned out.
Broken electrical wiring.

The easiest way to determine if a resistor is broken. In this case, only the maximum speed is turned on, and the stove does not respond to other positions of the handle.

The control unit is checked either by computer diagnostics or by a simple replacement. There are no other options.

The condition of the electric motor can be determined by checking with a test lamp. It is enough to remove the top frill and gain access to the motor connector. Disconnect this connector and insert a test lamp instead of the chip going to the fan. When you turn on the stove handle, the light should light up if the unit and wiring are working properly. If there is no signal, start checking the wires sequentially. If the lamp lights up, replace the electric motor.

Replacing the motor

Although Hallo and Panasonic fan electric motors differ in size and installation point, they have one thing in common. Their location is in a vertical position. This allows you to dismantle them without removing the entire heater. As with a standard heater, the heater fan motor on a Priora with air conditioning is secured with 3 screws.

So, replacement. As in the case of a radiator, first of all you need to open access to the stove. That is, remove the frill and protection. Then disconnect the electrical connector. Now just unscrew the 3 fastening screws and remove the fan with the motor. That's it, you can install a new unit in its place. But this is only for the Hallo heater. With the Panasonic compressor, everything is somewhat more complicated. The fact is that it is also separated from the engine compartment by a plastic casing. According to factory documentation, it is necessary to remove the entire heater to replace the electric motor. And this is draining and refilling freon. But our craftsmen found a way out.

Cut the protection at the narrowest point approximately in the middle of the compartment and remove it by unscrewing 2 fasteners. After this, access to the part being replaced is open. Sometimes, however, in most cases, the engine mount prevents you from pulling out the motor. Don't panic. This problem can be solved by disassembling the motor on site. That is, separate it into 2 halves and pull them out separately. Then insert a new one using the same method.

But still, just in case, before replacement, it is better to consult with car service specialists in advance about possible refilling of the air conditioner with freon in case of damage. This is to replace the motor. But with a radiator, such problems, as a rule, do not happen.

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