The 2003 Jetta has a water temperature of 20 times higher when the air conditioner is turned on at i

First of all, the round plastic small water tank you mentioned is the antifreeze filling port, you can't add water, because the boiling point of water is 100°, the heat dissipation effect is not as good as antifreeze, and adding water will produce scale, hanging on the pipeline to affect the heat dissipation.

If you have added water before, it is recommended that you immediately change the entire antifreeze and choose the freezer according to the area you are in. The original ones are fine, and the FOCHS ones are better.

In addition, because Jetta's fan is a single fan, you can consider replacing the double fan of the Santana 2000 model, which has low noise and good heat dissipation, and is good for once and for all. I used the Santana 3000 double fan, which has more power, but the sound is slightly larger than that of the Santana 2000. If you don't change the engine, you can use the Mulberry 2000.

Some people say that Chery's double fan is not recommended to use, Chery's double fan has a large current, is easy to burn the fuse, and has a greater impact on the line.

More years, is the car's water tank scale more, go to 4s to clear the water tank scale, the water temperature is generally fine, I open the small noodles are often the water temperature is very high, after a while will come down by themselves, too much scale.

After turning on the air conditioner, the load on the engine increases, the heat dissipation increases, and the water temperature will naturally rise. However, most cars will maintain the water temperature at the original equilibrium temperature by increasing the thermostat opening. If the water temperature is high in the car, it means that the opening of the thermostat has not increased or the water temperature is still high when it has been driven to the maximum, which is caused by insufficient heat dissipation capacity.

The measure is to check the lower thermostat. When driving, we also use low rpm and high speed conditions as much as possible, so that the engine load is small and the air intake volume is large, which will reduce the load on the cooling system.

Let's go to the 4S store to check, isn't there an event now? Free testing.

Just typed a lot of words, I deleted it.

I think the radiator needs to be cleaned.

Or the water pump and thermostat are not working well.

Summary. Hello, glad to come to your questions. This problem may be that the heat dissipation is not dissipated in time, which increases the water temperature of the water tank.

The 12-year-old Jetta turns on the air conditioner and the water temperature is normal, what is the reason for the increase in the water temperature if the air conditioner is not turned on.

Hello, glad to come to your questions. This problem may be that the heat dissipation is not dissipated in time, which increases the water temperature of the water tank.

In addition, the water temperature is not high when the air conditioner is turned off at high speeds, and the water temperature rises at low speeds.

In addition, the water temperature is not high when the air conditioner is turned off at high speeds, and the water temperature rises at low speeds.

The specific situation should be carefully checked for the cooling fan. I hope mine will help you, and I wish you brother!

What causes it.

What causes it.

I also know that there is a problem with heat dissipation, and the key is that the problem is **.

I also know that there is a problem with heat dissipation, and the key is that the problem is **.

This situation should also be actually investigated. Let's take a look at the situation. That is, test the actual temperature.

If the temperature sensor fails, this phenomenon may occur.

You can consider a few reasons for the simplification. First, it can borrow the fan without turning. The second temperature switch is out of order. Thirdly, the water temperature sensor is faulty. Rectify the fourth cooling medium is insufficient.

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.

Summary. In this case, you need to check the water tank, it may be caused by a blockage inside the water tank that causes it to dissipate heat poorly, and such a problem needs to check the water tank.

The water temperature of the old Jetta is high, there is no shortage of water, the electronic fan also turns, and the air conditioner is normal.

In this case, you need to check the water tank, it may be that there is a blockage inside the water tank, which causes it to dissipate heat poorly.

The electronic fan only turns when the air conditioner is turned on, and it does not turn when the air conditioner is not turned on.

If you don't turn on the air conditioner and the water temperature is high, then you need to check the water temperature sensor to see if there is any problem.

Summary. Hello, according to the analysis of your car's problem, you first check whether there is a problem with the thermostat, if the thermostat is still suitable, you check whether there is a problem with the two lines of the water temperature sensor, one is the signal voltage of the volt, if the line voltage is appropriate, you soak the water temperature sensor in hot water to detect the internal resistance value data, it is the temperature coefficient sensor with higher temperature, the lower the resistance value, if the resistance value is larger, That means it's a problem with the water temperature sensor itself.

Volkswagen Jetta water temperature is high.

Hello, this question can give you a perfect reply, wait for me to sort out the information, I'm typing, 2-3 minutes, don't finish.

Hello, according to the analysis of your car's problem, you first check whether there is a problem with the thermostat, if the thermostat is still suitable, you check whether there is a problem with the two lines of the water temperature sensor, one is the signal voltage of the volt, if the line voltage is appropriate, you soak the water temperature sensor in hot water to detect the internal resistance value data, it is the temperature coefficient sensor with higher temperature, the lower the resistance value, if the resistance value is larger, That means it's a problem with the water temperature sensor itself.

The water heater is removed, and the return pipe is not returned to the water, is it a problem with the return pipe?

The thermostat cannot be opened.

The thermostat of this car is removed, and the water temperature gauge is immediately up to 130 for two minutes of idling, and the cooling water tank and cooling fan have been treated?

No, there is still coolant like yellow muddy water, will it be blocked.

That's the problem of cooling fans and cooling water tanks.

If the fan is turning, unplug the fan and try it.

I dialed it, and the water temperature gauge was 50C

Or will it fall or stand still?

Stopping at 90 will not be as sharp as it was before to 130 all at once

Then the main consideration is the cooling fan itself.

If I can help you, please give me a thumbs up Thank you!

The water temperature of the old Jetta is 130, which is generally caused by water leakage, thermostat can not be opened, not circulating, radiator and other reasons, so we start from the simple aspect when repairing, first check whether the water leaks or not, due to the boiling pot, the antifreeze is insufficient, and it is necessary to fill up the water first to start the investigation.

Jetta VS5 Configuration Description:

1. The Jetta VS5 car length is meters, and then the wheelbase of 2630mm, although it is slightly smaller or shorter than the Volkswagen brand cars such as Skoda Korok or Tuyue, but it is very powerful, that is, it is also an MQB platform. In fact, now everyone is very aware of Volkswagen's MQB platform, from Polo to Tourang.

2. For the power part, the Jetta VS5 is equipped with a turbocharged engine, and it is the same as the engine on Lavida, Golf and other models. You must know the Volkswagen models equipped with engines, and the Jetta VS5 low-profile models, that is.

3. In terms of the selection of materials for the interior, the visual effect is still very good, but the large area is mainly hard plastic.

Photo by Tang Yanyan of Pacific Automobile Network).

It is caused by water leakage, thermostat failure, non-circulation, radiator, etc. Therefore, when it comes to repairs, we should start with the simple aspect, first check whether the water is leaking. Due to the high temperature of the water in Nahta and the lack of antifreeze, we need to fill up the water before starting the investigation.

Jetta is a car brand owned by FAW-Volkswagen, a joint venture between Audi AG and Germany's in China. 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, and the Jetta can be considered a derivative of the Golf. On February 26, 2019, the Jetta brand, the first sub-brand in the history of the Volkswagen brand, was officially unveiled at the Volkswagen headquarters in Wolfsburg, Germany. The new brand, which is scheduled to enter the Chinese market in March this year, will be the third brand in the long history of the Volkswagen brand and Yipai Huiqi-Volkswagen.

All models of the Jetta brand have the best skill scale and product research and development strength to communicate with the bus, and the value close to the people makes the Jetta models have a high cost performance. The new Jetta brand models all adopt a family-style design front face, and the models inherit the appearance of the classic Volkswagen Jetta, and the whole brand perfectly inherits the German genes and Volkswagen quality. The Jetta VS7 is developed through Volkswagen's advanced MQB platform, and Volkswagen's leading production technology has maintained its excellent quality, and it can better meet the needs of car owners in terms of safety, availability, and technology configuration.

Millions of car purchase subsidies.

Pacific Automobile Network] is caused by water leakage, thermostat can not be opened, no circulation, radiator and other reasons, so start from the simple aspect when repairing, first check whether the leakage is leaking, due to the high water temperature and insufficient antifreeze, you need to fill up the water to start the investigation.

Jetta is a joint venture of the German Volkswagen Group in China - FAW-Volkswagen ****'s car Sleepy Zheng brand, and its first product Jetta (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. On February 26, 2019, the Jetta brand, the first sub-brand in the history of the Volkswagen brand, was officially unveiled in Wolfsburg, Germany, at the headquarters of Volkswagen. The new brand is scheduled to enter the Chinese market in March this year and will be the third brand in the long-term partnership between the Volkswagen brand and FAW-Volkswagen.

All models under the Jetta brand have the best skill scale and product research and development strength to communicate with buses, and the more people-friendly value makes Jetta models have a high cost performance. All models of the new Jetta brand adopt a family-style design front face, and the sedan inherits the appearance of the classic Volkswagen Jetta, and the overall brand perfectly inherits the German Wang Song gene and Volkswagen quality. Among them, the Jetta VS7 is developed through Volkswagen's advanced MQB platform, and Volkswagen's leading production technology shared by the world allows it to continue its excellent quality, and can better meet the needs of car owners in terms of safety, space, and technology configuration.

Photo by Chen Jie 2).