
How a heater works on a Volkswagen Jetta
In the middle of winter it is essential on the way to go to work. And when the latter does not work well we notice it intensely. Therefore, before knowing what caused the problem, you will have to understand how it works on your Volkswagen Jetta, at least the basics. The heating uses the engine block temperature to warm the personalised tour, and generally the cooling system. Therefore this system has several functions. Similarly, the fan system, so that the hot air reaches us presents a double system. It's the ventilateur which sends hot air as soon as the vehicle is running at low speed or is stopped, and it is the speed of the vehicle which allows hot air to be sent when you are driving faster. It's pretty clever isn't it?
Recurring heating problems on a Volkswagen Jetta
Broken thermostat
The idea is easy, in the case where the thermostat which regulates the temperature does not really understand the temperature of the water in the circuit, the latter is impacted. Even if the thermostat of your Volkswagen Jetta does not turn correctly, the heating will still work. Because the temperature coming from the engine block will gradually increase, and the water circuit at the same time, whether the thermostat works or not. The only annoyance is that you will find it difficult to change the air temperature.
Air shutters blocked on the Volkswagen Jetta
It is a concern that occurs quite frequently. These shutters, which allow you to direct the air or adjust the intensity, sometimes get blocked over time. To remedy this it is simple, remove the cover and look inside how it was done. Activate the mechanisms to see where it is blocking. Put a little WD 40 to lubricate and voila.
Faulty fan on the Volkswagen Jetta
As you can imagine, the fan only works at low speed and the engine off. If this heating system does not emit air at low speed but you still hear a sound, it is that this fan is definitely screwed up. A priori, with high speed, the heating of your Volkswagen Jetta will turn. If the fan does not turn at all it should be replaced.
Blocked hoses
The clues are quite simple. When your heating turns and creates little or no heat, the problem is certainly caused by the hoses. They get dirty the more time passes and do not allow hot water to reach your heating of your Volkswagen Jetta. In this case, wash the hoses or install new ones.
Air pocket in the circuit of the Volkswagen Jetta
The syndrome is the same as that of the hose lines. If air streams have become embedded in the heart of the circuit, high temperature water also has problems accessing the radiator of the Volkswagen Jetta heater. In this case, simply purge the water circuit.
Conclusion
You now know what can cause this concern. By cons it is possible that the problem comes from elsewhere, for example the air duct of your Volkswagen Jetta obstructed, or a defective valve, but it is still more rare. Do not hesitate to leave a comment if this article served you. Enjoy the road!