The heating, ventilation and air conditioning system of the Vesta's interior differs from similar systems of other Lada models. The difference is not only in its design, but also in the control method. Let's look at the design features of the Vesta stove, and also evaluate its effectiveness.
Stove (heater) Lada Vesta, device and reviews
The heating, ventilation and air conditioning system of the Vesta's interior differs from similar systems of other Lada models. The difference is not only in its design, but also in the control method. Let's look at the design features of the Vesta stove, and also evaluate its effectiveness.
Elements of the ventilation and heating system
The stove body (in Fig. No. 5) is located in the car interior under the instrument panel frame. Inside the case there are:
- heater radiator;
- electric fan;
- fan speed controller (RFV) or additional resistor;
- air flow distribution damper;
- gear motor that regulates the dampers;
- air filter.
The heater radiator releases heat to heat the interior. Located inside the case on the left side. To replace it, you will have to remove the upper frame (lining) of the panel (dashboard).
An electric fan forces air into the car interior through air ducts. It is located on the other (right) side of the body. Access to it opens after removing the glove compartment.
The additional resistor is designed to regulate the rotation speed of the fan motor. It is installed on the heater housing on the driver's side.
The cabin filter cleans the air entering the cabin. Located in the heater block on the passenger side. It is replaced from inside the car (and not from the engine compartment, as on Grant, Kalina or Priora). In addition, the filter element resource is 30,000 km, and not the usual 15 thousand km.
The job of the gear motor is to regulate the position of the damper, which distributes air throughout the cabin. How this happens is shown in the video:
Air temperature sensors in the cabin and outside transmit readings to the engine control unit (ECU).
The control unit for the stove (heater) and air conditioner (SAUKU) is designed to regulate the air temperature in the cabin, change the speed and direction of air flows, and control the heaters. Depending on the configuration, the SAUKU may differ slightly. There are three types in total:
- SAUKU without air conditioning;
- SAUKU with air conditioning;
- SAUKU with climate control.
Typical stove malfunctions
The most common problems with the stove on Lada Vesta are the following:
- the actual temperature does not correspond to the set one - low level of antifreeze (antifreeze), clogged radiator pipes or the formation of an air lock, which causes cold air to blow;
- vibration appears during operation - the electric motor is loose;
- insufficient air flow from the deflectors - clogging of channels and air ducts;
- the heater is inactive when it is activated on the dashboard - failure of the fuse (No. 14) of the mounting block.
Checking the stove fan
During the circulation of the air flow, dust particles settle on the surface of the impeller, as a result of which it begins to make noise and extraneous sounds appear.
To clear the fan blades of debris, it is necessary to provide access to the unit.
- Unsnap the glove box.
- Remove the filter element.
- On the right is the furnace mechanism. We press the plastic clips and turn the impeller counterclockwise.
- We remove the motor.
- We wipe the drive with a rag.
- Install the parts in reverse order.
Checking the stove dampers
Dampers are installed in the area between the deflectors and the fan. During operation, they fail, become deformed, and become damaged. Checking the serviceability of the damper on your own is quite simple: you need to activate the stove at maximum speed. If it doesn't blow well, it means the air duct is clogged. Change the damper positions. If you hear squeaking or noise, lubricate the moving parts with silicone grease.
Foggy windows when the heater is activated is the first sign of a ventilation problem. This problem provokes a sharp decrease in visibility on the road and an increase in the risk of an emergency. As soon as fogging is detected, check the condition of the ventilation; most likely, the air ducts are clogged.
Checking heating efficiency
Carry out prevention before the onset of winter. Be sure to check:
- heating the air;
- changing speed modes when switching the control lever, if necessary, replace the brushes of the stove motor;
- absence of extraneous noise, whistling in fan operation;
- the need for a time interval to warm up the air ducts.
Note to the driver! The left and right pipes must be at the same temperature. Otherwise, this is a sign of a malfunction of the heating system.
Interior ventilation diagram
Air ducts run from the stove body, which direct air flows to the windows, into the interior and legs. The central deflectors can adjust air flow in different directions, and its strength is controlled using a horizontal wheel underneath them.
AvtoVAZ has implemented airflow for the Vesta driver’s feet in a new way. The air duct nozzle is located not on the side, but above the foot of the right foot. Some owners of the new sedan believe that this design is not very successful, because It warms the toes worse than the foot itself. For the front passenger, the air duct exits closer to the wall of the engine shield and a similar situation will not arise.
Worth o. On versions of the car with air conditioning, a small air duct fits into the glove compartment, which can cool, for example, a water bottle.
Heater and air conditioner control
“Classic” block without air conditioning
Left regulator (No. 9) – supply air temperature control; Right (No. 17) - air flow regulation; Buttons (No. 11-16) - setting the direction of air flow.
Comfort unit with air conditioning
The left regulator additionally has the function of turning on the air conditioner (No. 18), and the right one has the function of turning on air recirculation (No. 19). Otherwise, the control of supply air temperature, fan speed and air flow distribution of the Comfort version of the system is similar to the Classic version.
Luxe unit with climate control
Two buttons are replaced on the control unit:
- “Defrost MAX” mode (No. 24) - the air conditioning is forcibly turned on (if conditions permit), electric heating of the windshield and rear windows and side rear-view mirrors. The entire air flow is directed to the blower nozzles of the windshield and front side windows, and the maximum speed and air temperature are set.
- “AUTO” mode - in this mode, the air flow intensity (fan speed) and one or another air flow distribution mode are automatically set depending on the outside air temperature, the cabin air temperature and the coolant temperature of the engine cooling system.
The information display (No. 10) has also undergone changes; the air temperature scale has been replaced with numbers.
CHECKING HEATING EFFICIENCY
We start the engine and warm it up to operating temperature . We check that the inlet and outlet pipes of the heater radiator are heated and have approximately the same temperature. If the pipes have different temperatures, then it is possible:
- low coolant level in the expansion tank (which antifreeze is better)
- An air lock has appeared in the engine cooling system (air can be released through a special valve)
- Heater radiator clogged (replace)
We install the temperature regulator on the stove control unit all the way to the red zone. We make sure that the temperature of the air leaving the panel deflectors begins to rise. If it blows cold, it means:
- The damper drive is faulty (the damper does not open,
- preventing the passage of air through the heater radiator)
- The heater control unit is faulty (how to remove)
Articles about tuning Lada Xray
Reviews about the Vesta stove
The first reviews from Vesta owners about the stove are generally positive. No significant deficiencies were identified. The car warms up quickly. It blows quite strongly from all the air duct nozzles. In cold weather at -25 degrees, the car interior is warm and comfortable. When using the control unit and adjusting the deflectors, the cost of the parts is not visible; in terms of quality, it resembles a foreign car.
To improve the efficiency of the heater, close the glove compartment cooling in winter:
Let us remind you that with the first cold snap we were also able to test the operation of the heating. You can find other information about Vesta that interests you in this content. By the way, problems with the operation of the stove can be caused by an air lock in the cooling system.
How does your Vesta’s stove heat? In the comments to the article we leave impressions and notes about the efficiency of the heater.
Categories of products that you may be interested in based on the article “Stove (heater) Lada Vesta, device and reviews”:
Standard heater radiator
The heater radiator is the same in design as the radiator of the Lada cooling system, only smaller. They have a common antifreeze range. Dirt from the expansion tank may also end up in the small interior assembly. Unfortunately, the radiator cannot be repaired. Need a replacement. When we come closer to the question, it turns out that the standard unit does not have a serial number. There is only a code - UT-00006936, according to which they can sell you another spare part. Therefore, before purchasing, check with the seller for information.
Cooling, heating (engine and air conditioning radiators) Lada Vesta
Products from the Dustershop77 range on the topic of the article:
| Name | Manufacturer | Price | Availability | Add to cart |
| DC1553-7701208363 | Set of sealing rings for air conditioner pipes (6 pcs) original 7701208363 | Original | 1100 / 900 rub. Discount: 700 rub. | 2 |
| DC1941-8450006450 | Expansion tank Vesta 8450006450 original | Original | 1000 / 900 rub. Discount: 700 rub. | 3 |
| DC1661-210102692R | Water pump (pump) engine 1.6 H4M original 210102692R / 210102248 | Original | 4100 / 3600 rub. Discount: 3300 rub. | 1 |
| DC1662-WPP2463 | Water pump (pump) engine 1.6 H4M PILENGA analogue 210102692R / 210102248 | Analogue | 1600 / 1200 rub. Discount: 990 rub. | 1 |
| DC1666-LWP0129 | Water pump (pump) 1.6 / 1.8 21129/21179 LUZAR analogue 21129130701020 / 21176130701000 | Analogue | 2000 / 1800 rub. Discount: 1700 rub. | 1 |
| DC1629-1040321ZH | Air conditioner radiator Logan 2014-, Vesta 2015- (Termal) | Analogue | 5500 / 4800 rub. Discount: 4300 rub. | 1 |
