Many Jetta air conditioners why do they have high temperatures

The air conditioning system does not work well, and sometimes the hot air blows out for the following reasons:

1) The expansion valve of the air conditioner is blocked, resulting in the refrigerant cannot be well circulated, so that the refrigeration cannot be refrigerated;

2) The cold and hot circulation damper of the air conditioner has abnormal action, and the hot circulation damper will be opened during driving;

3) The evaporation box freezes and is frozen during the journey, resulting in the cold air cannot be blown out, but this phenomenon is generally accompanied by the phenomenon of reduced air volume;

4) The system is faulty, resulting in sometimes the electromagnetic clutch coil being not engaged;

5) The electromagnetic clutch coil is faulty and sometimes cannot be well engaged;

Check them one by one according to these situations.

Resources.

This is a common problem, take off the temperature relief valve at the mouth of the water tank, and it will be fine, but you must remember to install it in winter.

The engine was too hot, so the air conditioner didn't work.

Turn the water tank through. It could be better.

I also have this problem with my car, and I haven't solved it after looking for a few people.

If you don't understand, please ask additional questions.

This seems to be a common problem, and I have this situation too.

Please explain**High temperatures? Under what circumstances did it appear. Describe the phenomenon.

Blockages in the water tank and internal waterways may affect coolant circulation, or there may be limescale.

Jetta is a joint venture of the German Volkswagen Group in China, FAW-Volkswagen, and its first product, the Jetta-MK1, was launched in Europe in 1979. In terms of its structure, the Jetta (including the later Vento Bora) was a Golf with a trunk in the car, and the Jetta can be seen as a variant of the Golf.

VS7: Jetta VS7 is another SUV product of the Jetta brand, positioned as a mid-size SUV. With the launch of the VS7, the Jetta SUV lineup has been further enriched.

In terms of appearance, the latest design language of the Jetta brand is adopted, the newly designed brand logo is full of personality, the polygonal chrome dot matrix front grille + the LED headlights on both sides are distinct, which makes people have a new perception of Jetta, and the addition of LED daytime running lights, as well as the regular front surround with silver front lip decoration, it is to create a certain sports atmosphere.

1. The fan speed is not enough!

2. Poor heat dissipation of the water tank!

3. Water pump pressure is not good! [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello! This is generally caused by poor circulation of the internal organs of the waterway, it is recommended to clean the inside of the water tank and the engine waterway, if it is not good, the pump is broken, but this rarely happens, I hope my answer can help you, I wish you a happy car [car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, this is very simple, when you wash the car, take the water gun away from the water tank, the water gun and the water tank are vertical to clean, I guarantee that you wait for the traffic light not to be high temperature [car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

It is recommended to go to the 4S store to test it. Compare insurance.

It may be due to a broken temperature sensor, a loose fan belt, or poor antifreeze circulation. The new Jetta adopts a new generation of family design language, with a horizontal front grille, a large number of chrome decorations, and a close combination of blackened headlights.

Equipped with a piano lacquered center console and a bright chrome trim inside, it is sporty and of exceptional quality.

Jetta is equipped with rich chrome decorations, stylish and spacious interior, the new Jetta has a stylish and spacious interior, symmetrical design, simple and tough, highlighting the sporty atmosphere; With rich chrome decorations, the overall atmosphere of the car is more elegant and beautiful.

In terms of power, the maximum power of the engine is 66kw 5500rpm, and the peak torque can reach 132Nm at 3800rpm; The engine has a maximum power of 81kW at 6000rpm and a peak torque of 160Nm at 3800rpm.

The engine is mated to a five-speed manual transmission, while the engine is paired with a five-speed manual or a six-speed automatic transmission.

Millions of car purchase subsidies.

The reasons for the high temperature of the Jetta car are: 1: the temperature sensor is broken; 2:

The fan belt is loose and the antifreeze is poorly circulated; 3: The antifreeze is missing or there is too much scale, and the valve is not closed tightly, resulting in the blockage of the exhaust pipe. All of the above can cause the temperature of the car to rise.

The high temperature of the car will cause damage to the engine, because the engine is working at a very high temperature, it is through the coolant and cooling fan, the water tank to cool the engine, if there is no coolant, the engine working temperature is getting higher and higher, because of the principle of thermal expansion and contraction of the object, the internal chain of the engine will expand, so it will lead to the failure of the engine cylinder. The common fault points of high engine temperature are:1

The lack of antifreeze in the engine cooling system may be due to a leak in the engine, such as a leaking water pump, broken pipes, broken water tank, etc. 2.A malfunction in the thermostat in the engine cooling system caused the water to be too hot.

Because the thermostat could not open the round, the flow of coolant inside the engine was blocked, so the temperature of the coolant was too high. 3.The cooling fan in the engine cooling system is not working properly, resulting in poor heat dissipation of the coolant.

So the water temperature light is on, causing the coolant temperature to be too high.

Photo by Chen Hanlin) @2019

What is the reason for the high temperature of the Volkswagen Jetta car The reasons for the high temperature of the Jetta are as follows:1. The temperature sensor is broken; 2.

The fan belt is loose, and the antifreeze is not well circulated; 3.Insufficient antifreeze or excessive limescale, and poor valve closure lead to clogged exhaust pipes. All of the above can cause the temperature of the car to rise.

The high temperature of the car can cause damage to the engine because the engine is operating at a high temperature and the coolant and cooling fan and the water tank play the role of cooling the engine. Without coolant, the engine will operate at higher and higher temperatures. Due to the principle of thermal expansion and contraction of objects, the internal parts of the engine will expand, resulting in the failure of the engine cylinder.

The common points of failure of the engine at high temperatures are as follows:1. The absence of antifreeze in the engine racket cooling system can be a leak point in the engine, such as leaking water pump, damaged pipeline, damaged water tank, etc.

2.A faulty thermostat in the engine cooling system caused the water temperature to be too high. Because the thermostat cannot be turned on, the coolant flow inside the engine is blocked, so the coolant temperature is too high.

3.The cooling fan in the engine cooling system is not working properly, resulting in poor heat dissipation of the cooling Hongxiao liquid. As a result, the water temperature light comes on, causing the coolant temperature to be too high.

1.The easiest way to check whether the water tank fan is working properly is to turn on the vehicle's air conditioning and refrigeration system, if the air conditioning compressor has been started and the fan is still not running, the fan must have failed.

2.Poor heat dissipation of radiator: this kind of situation occurs mostly in April and May, when there are more catkins and cotton wool, you only need to open the hood to observe whether the radiator located behind the bumper is mixed with too many foreign objects, if the radiator is too seriously blocked, you need to go to the repair shop for cleaning.

3.In this case, the coolant can not circulate normally and cannot play a cooling role at all, mainly because the water tank and the return pipe are at room temperature (it should be hot under normal circumstances), and due to the expansion of the gas in the water pipe, the upper and lower water pipes will become very hard at this time.

4.Insufficient coolant: This is a relatively easy situation to observe, as long as the engine compartment is opened to see if the coolant level meets the requirements.

5.Poor working of the water pump: the water pump belt will be used for too long due to the phenomenon of slippage, idling and other phenomena, when this problem occurs, the main feature is that it will return to normal after stepping on the accelerator for a period of time.

6.Water temperature sensor bridge equipment, instrument and circuit abnormality: If the above problems have been eliminated, then the high water temperature may be caused by the failure of the water temperature sensor or the failure of the meter and circuit, then it is necessary to go to the maintenance station in time for a detailed inspection.

Hello, this is a relatively common fault, many knowledgeable netizens have asked before, I have also answered, although the models are different, but the reasons are similar: 1. I don't know how you clean the waterway? Has the inside of the tank been cleaned?

Blockage in the water tank will cause the failure of high water temperature and high speed water temperature of the air conditioner, which is one of the most common reasons. The cleaning of the inside of the water tank needs to disassemble the water tank, clean the internal pipes of the water tank, and then assemble the water tank, but the disintegrated water tank is not good to ensure the sealing, so if it is troublesome, there is a confirmation that the water tank is blocked (you can observe the internal waterway through the water tank nozzle with a flashlight lighting), and you can directly replace it; 2. The internal pressure of the air conditioning system is too high, such as too much refrigerant and air, at this time, the temperature of the condenser will be much higher than 100 degrees, and with the flow of cooling air, the high-temperature condenser located in front of the water tank will heat the water tank! It's rare, but it's some, and you can tell by measuring the high pressure.

Usually the first case is much more.

Wash the water tank, check the speed of the fan coupler when the temperature is high, replace it when it is low, and check the tightness of the belt. Check the air conditioner's electronic fan. Clean the condenser.

If none of the above is done, the thermostat is damaged. If you want to remove the thermostat, you should plug the small circulation at this time, so as to ensure that all the coolant is dissipated by the water tank; When installing a new thermostat, you should pay attention to the water hole, such as Santana does not have a water hole, at this time, a 6mm drill bit should be used to drill a hole. One function is to be used as a marker; Another function is that during the heating process of the car, the temperature difference between the two sides of the thermostat is generated, so that the thermostat is accurately opened with the water temperature.