How to change the stove radiator on a Prior? How to replace the radiator of a Priora stove without 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.

Diagnostics of climate control equipment "luxury"

Like all electronic control units (ECUs), the heater/air conditioning computer is diagnosed either with a portable scanner or with a full-fledged motor tester. It should be borne in mind that this system is controlled through a separate ECU called the comfort unit.

Just like standard diagnostics, the climate control system scan is connected via the OBD-2 diagnostic connector under the glove box. In general, these tests are carried out in a similar way to diagnosing an automatic heating system. With air conditioning features. That is, checking the actuators and sensors of this device.

Causes of heater failure

There can be a huge number of reasons, but there are several main ones. These include leaks and clogged heater radiators. Let's take a closer look at each.

The radiator is clogged on the outside

When the radiator honeycomb becomes clogged with various debris, its throughput is significantly reduced and it cannot give off heat in the amount necessary for effective heating of the interior.

This happens due to prolonged use of the cabin filter or even neglect of its use.

The radiator is clogged inside

With such a problem, which arises as a result of using low-quality antifreeze or using it for a long time without replacing it, the inside of the radiator becomes clogged. It is for this reason that the coolant does not circulate effectively or does not circulate through the heater radiator at all, which leads to insufficient heating of the heater, thereby complicating the heating of the interior.

Radiator leak

Radiator leaks occur due to many different reasons.

These include:

Aging;
Poor quality coolant;
Corrosion, etc.;

This problem is fraught with the fact that when the radiator leaks profusely, a large amount of coolant is lost, which can lead to engine overheating and, as a result, expensive repairs of the internal combustion engine.

All of the above described causes of radiator malfunction can be eliminated by replacing or flushing it.

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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.

Radiator replacement

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; Remove the windshield trim to gain access to the heater system parts
Let's move on to soundproofing the engine shield. We need to dismantle its middle part, having previously removed the hoses from the mounts. The sound insulation is secured at the bottom with 3 screws, 2 nuts and a washer, and at the top with 3 self-tapping screws. It is recommended to use a tool extension as some fasteners may be difficult to reach; Removing the fastenings
After dismantling the protection, you will see a foam seal that covers the heater radiator; Remove the trim and move on to soundproofing the engine
To remove the cover, we need to unscrew 3 screws - 1 you will find in the middle, and 2 others - along the edges; Unscrew the fasteners and gain access to the radiator
We reached the pipes. To remove them, we need to loosen the clamps and lift the pipes up. Be careful not to tilt the hoses down;
Pull the heater core towards you until it comes out of the fastenings.

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; We remove both parts and go to the interior to dismantle the radiator
Let's move on to the radiator pipes. We loosen the clamps and dismantle them, having prepared a container for antifreeze in advance. Plug the pipes so as not to drain all the antifreeze;
You need to remove all the wiring that goes to the stove;
Next, remove the wire holder and take it to the side, now we go to the Priora’s interior;
Armed with a 13mm wrench, unscrew the bracket fastenings along with the brake pedal. We move the details to the side;
We unscrew 3 screws and gain access to the radiator;
Replacement is carried out in reverse order.

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.

How to replace a stove radiator yourself without an air conditioner

What will be needed for replacement? First of all, the following tools:

Screwdrivers, figured and flat.
Wrenches for 8 and 10. (preferably heads with a wrench.)
Thin pliers for removing clamps.

And, of course, some materials and devices:

Container for coolant from the system.
New radiator.
Foam rubber adhesive strips for the radiator of the Priora stove.
2 liters of coolant. (same brand as in the system.)
Rags.

Having prepared such an arsenal, you can begin this interesting operation of replacing the heat exchanger.

Process description

Place the car level. This is necessary to completely drain the coolant from the radiator of the Priora stove. Place a container for liquid under the bottom of the car. It must be installed in the area of the radiator drain hole of the cooling system. On the right side (along the direction of the car, or on the left, if you stand near the hood). Next you need:

Unscrew the screw cap and allow the liquid to drain. When the pressure weakens, open the cap of the expansion tank. Wait for the drain to drain and tighten the plug. Disconnect the negative battery terminal. You can begin dismantling the protection. It's called frill.
First, the windshield wipers are removed. Using a 13mm wrench, unscrew the fastening nuts and remove the brush holders. After this, remove the rubber seal.
Unscrew the fastening screws. There are 6 of them on top and 7 along the bottom edge. Now remove both halves of the plastic frill. After unscrewing the fasteners, remove the fabric protection of the glass niche in which the stove is installed.

Now comes the most crucial moment. Most craftsmen, when replacing this part, immediately disconnect the pipes going to the radiator of the Priora stove. However, there is a risk of dousing the heater parts with coolant. There is a more interesting and safer option.

Removing the stove

Now that the frill and protection have been removed, access to the heater is completely open. First of all, you need to disconnect the electrical connectors:

Micromotor gearbox for damper drive. 2 connectors.
Electric fan. 1 connector.
Resistor. 1 connector.

Now unscrew the fastening of the heater body to the car body.
One 10mm nut secures the eye on the stove body to the right wing. 8 secures the top to the stud at the top. And two nuts at the bottom. Once the fasteners are removed, the fun begins. Using a flat screwdriver, remove the 3 screws securing the radiator to the body. You need to act carefully so as not to break off the side, thin pressure relief pipe. After that, remove the screws holding the 2 parts of the heater housing. Move the left part with the fan motor a little to the left, disconnecting them, and pull it out.

After this, you can begin to remove the second half with the radiator. Hold the pipes with your hand and begin to remove the body to the left. When it comes off, set it aside. After releasing the clamps from the pipes, remove them from the radiator.

Installation (replacement) of a new radiator

There are two options here. You can simply replace it by putting the part in place of the old one, before installing the housing. But it is better to install the radiator in the removed half before attaching the pipes.

Having decorated the heat exchanger of the stove with foam, install it in the niche of the housing and secure it with screws. Place the half in place and secure all 3 pipes in place. Tighten the clamps.

Carefully reassemble the heater in reverse order. Add coolant to normal level. Start the engine and wait for the cooling fan to operate. Press the accelerator pedal and hold the speed at about 2,000 rpm for a couple of minutes. This is necessary to eliminate a possible air lock. Turn on the heater and check its operation in all modes. All! Well, the necessary work has been done.

Video on the topic of replacing the heater radiator on a Priora without air conditioning.

Replacing the engine cooling radiator on a Lada Priora

Normal operation of a car heater provides the driver and passengers with a comfortable ride in the cold season. But sometimes the car’s heating fails, for example, the heater radiator may leak, and the freezing driver takes longer to react to sudden changes in road conditions.

Using the Lada Priora as an example, we will consider a way to independently solve this problem. Such repairs can be done in the garage yourself, although at first it may scare away less experienced car enthusiasts.

Difficulty of choice

If it has become noticeably cold inside the car, it is worth checking the car's heating system. Most likely, the problem will be detected in the heater radiator and you will soon have to buy a new one.

The Internet is full of advertisements for the sale of heater radiators for Lada Priora, but how to choose a quality product and not “run into” a fake?

The first thing that should indicate the originality of a part is its price. High-quality spare parts cannot be cheap; manufacturers of original radiators will not allow this.

Second. The original radiator of the car heating system has small cells, i.e. the distance between the vertical slats is minimal, only factory equipment can provide this. Factory equipment “works” only with high-quality metal; the honeycombs should not be too soft.

Manufacturers of counterfeit products save on small things; they do not install “liquid swirlers” in counterfeit radiators, plastic parts that increase the heat transfer of the coolant in the radiator of the heating system. To check their presence, you should shake the part; a specific sound will indicate their presence or absence. If they are made of soft material, this method is useless.

Once the radiator has been selected, it is time to change it. Replacing an old one or installing a new radiator in a Priora requires certain actions.

Replacing a heater radiator in a Priora without air conditioning

The layout of the Priora heating system is traditional for domestic cars, its main components are:

radiator (heat exchanger) of the heater, in which the liquid is heated;
fan - it disperses air heated from the radiator throughout the cabin;
regulators - with their help, the intensity of the fan operation is changed and the flow of warm air is regulated by zones.

Before the main work, turn off the power to the car, i.e., remove the negative terminal from the battery.

After turning off the power to the car, you can begin to remove the windshield trim. If you are too lazy to dismantle the wiper arms before doing this, certain difficulties will arise in the future. Next, disconnect the tubes (plastic) for supplying washer fluid to the injectors. Now the decorative trim of the windshield can be easily removed, just unscrew the 7 screws that hold it in place. Although this may still be prevented by the hood seal.

Then the next step is to remove the hood seal. At the front, the two sides of the seal are connected together and secured with a screw; it must be unscrewed. Using a flat tool (screwdriver or knife), remove the plugs and unscrew the screws. We remove the seal that may interfere with the removal of the decorative trim, after which it should come off easily.

Everything worked out - we move on and remove the sound insulation of the engine compartment. We unscrew the screws securing it, remove the covers one by one (the order does not matter). Before releasing the clamps that hold the pipes, place a container to drain the coolant; this will save you some money.

The wiring can be removed using keys 8 and 10. Unscrew the 4 nuts and put the harness aside. Using a 13 key, remove the bracket from the brake pedal and move it to the side - the road to the radiator is open. Use a Phillips screwdriver to unscrew the 3 screws and remove the radiator.

Install the heat exchanger, following the completed cycle, but starting from the end. It’s up to you to decide which Lada Priora heater radiator to install, repaired or new.

Alternative option

There is an alternative option to remove the heater radiator; some prefer it. The vacuum booster (brake) is removed, along with the brake pedal. This will allow you to get to the heater (its left side) and to the heater radiator on the Priora.

Replacing the cooling radiator Priora with air conditioning

After a certain period of time after the release of the Lada Priora, the manufacturer began to equip them with climate control units (air conditioners) Panasonic and HALLA. The new heater has become structurally different from the old one, and getting to it has become much easier. To replace the radiator, you no longer need to remove the frill (windshield trim), VUK, wiper holders or heater.

Priora stove diagram

Before changing the stove on a Priora, buy new heater elements using the catalog numbers:

Priora heater 2111-8101012: 1 — heater inlet/outlet hoses 2170-8101200/208; 2 — additional resistor 2123-8118022; 3 — electric fan 2111-8118020; 4 — heater 2111-8101012; 5 — nut 1/07259/11; 6 - screw 1/51873/01

Priora heater parts: 1 - screw 1/76691/01; 2 — heater radiator 2110-8101060; 3 — left heater casing 2111-8101025; 4 — heater control damper 2110-8101538; 5 — right heater casing 2111-8101024; 6 — air duct housing 2111-8119124 intermediate; 7 — screw 1/76692/01; 8 — lower air intake housing 2111-8119026; 9 — bracket 2108-8101110; 10 — bracket 2111-8119102 right; 11 — screw 2114-5325388; 12 — air filter 2111-8122020; 13 — upper air intake housing 2111-8119025; 14 — filter cover 2111-8119116; 15 — screw 1/76702/01; 16 — screw 1/76691/01; 17 — additional resistor 2123-8118022; 18 — screw 2123-6302332; 19 — screw 2114-5325388; 20 — air supply pipe 2123-8118096; 21 — electric fan 2111-8118020 of the heater; 22 — bracket 2108-8101110; 23 — gear motor 2110-8127200 for the heater damper; 24 - screw 1/76691/01

By the way, do you know that the Lada Priora is also equipped with air conditioners (HALLA and Panasonic), so the process of replacing the Priora heater may be slightly different. For example, in order to replace the heater radiator on a Priora with HALLA air conditioning, it is not at all necessary to dismantle the heater assembly.

How to replace a Lada Priora radiator heater without air conditioning

First of all, let's look at the main elements of the VAZ-2170 heating system. They are, in particular:

heater radiator (heat exchanger) – this is where the coolant is heated;
fan - with its help warm air is supplied to the car interior;
regulators – heating intensity and heat distribution zones.

The scheme is, in principle, traditional, and there are no particularly complex technical delights here. If you notice that warm air is not flowing into the cabin while the heater is on, you should inspect the entire system. If a radiator leak is detected, the latter will have to be removed either in order to be soldered, or to be replaced with a new one. Let's look at how this procedure can be done with your own hands on a Priora without air conditioning.

The first thing that is recommended to do before starting the main work is to remove the negative terminal from the battery.

Do not neglect this advice, because it is, firstly, about your safety, and secondly, it is additional insurance against a number of different unpleasant surprises with wiring and electrical equipment.

After the car is de-energized, you can remove the windshield trim.
It will also be necessary to dismantle the wiper arms, since they will create additional inconvenience during operation. Together with them, we also disconnect the plastic tubes through which liquid from the windshield washer reservoir is supplied to the nozzles. Now you can proceed to removing the decorative trim of the windshield. This is not difficult to do - it is attached using 7 self-tapping screws, respectively, they should be unscrewed. First you will need to remove the hood seal. Please note that in the middle of the pad there is a screw with which the halves are pulled together. After this, use a screwdriver or knife to carefully pry up the plugs covering the screws and unscrew them. That's it - the cover can be removed.

If everything went well, then you can move on. At this stage, you should remove the sound insulation from the engine compartment. To do this, unscrew the screws with which it is actually attached, and then remove the lining, left and right (the order does not matter). After this, you can move on to the pipes leading directly to the radiator. In order to remove them, you will first need to loosen the retaining clamps. Place a container to drain the coolant first.

Now you can remove all the wires that lead to the heater from the connectors. Having disconnected them, take two keys - 10 and 8 - and unscrew the 4 nuts. The wiring harness should be moved to the side so that it does not interfere, after first removing the holder. After this, we move into the car interior and take a socket wrench size 13. With its help, remove the bracket from the brake pedal, and

move it to the side. That's all - you have free access to the heater radiator. In order to remove it, you need to unscrew 3 screws using a Phillips screwdriver, after which the unit can be easily removed. All work on installing the radiator is carried out in reverse order.

As you can see, there is really nothing particularly difficult here. In order to remove the heater radiator on a Priora without air conditioning yourself, you will need some time (it all depends on your skills) and a minimum set of tools. On the other hand, you save money because you do all the work yourself, rather than turning to specialists at a car service center. Even if you have never encountered this before, figuring out how to remove the Priora radiator will not be difficult. The eyes, as you know, are afraid, while the hands do. It’s probably worth listening to folk wisdom.

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