
How a heater works on a Renault Grand Scenic 2
In the middle of winter, heating is our best ally on the way when we go to work. And when the latter does not work well we quickly regret it. In this situation to know what the problem is coming from, you must understand how it works on your Renault Grand Scenic 2, at least the basics. The heating uses the engine temperature to warm up the personalised tour, then very often from the cooling mechanism. In fact this system has several functions. Also, the fan mechanism, so that the hot air reaches us also has a duplication. It's the ventilateur which sends hot air when the automobile is running at low speed or is stationary, then it is the speed of your automobile which will send hot air when you are driving faster. Rather well thought out, no?
Recurring heating problems on a Renault Grand Scenic 2
Broken thermostat
The concept is simple, if the thermostat which makes it possible to adjust the temperature does not really understand the temperature of the water circuit, the entire circuit is affected. Even if the thermostat of your Renault Grand Scenic 2 still does not activate correctly, the heating will still work. Because the temperature coming from the engine will gradually increase, then the water circuit at the same time, whether it is regulated or not. Our only annoyance is that you won't be able to really set the air temperature.
Air flaps blocked on the Renault Grand Scenic 2
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 Renault Grand Scenic 2
As you can imagine, the fan is useful only at low speed and when stopped. If it happens that the heater does not generate too much heat at low speed but you still hear a sound, then that fan is most likely going to be screwed up. Usually, with more speed the heating of your Renault Grand Scenic 2 must work. If the fan does not activate, it should be replaced.
Blocked hoses
The signs turn out to be pretty obvious. As soon as your heating works but does not heat up or very slightly, the problem must certainly come from the hoses. They get dirty over time and do not allow hot water to access the heating of your Renault Grand Scenic 2. So clean the hoses or install new ones.
Air pocket in the circuit of the Renault Grand Scenic 2
The syndrome will be similar to that of the hoses. If it happens that air bubbles are inserted in the circuit, the water at high temperature similarly has problems reaching the heating radiator of this famous Renault Grand Scenic 2. So, it is necessary to bleed the water circuit.
Conclusion
Now you understand where the concern could be. However, it happens that the problem comes from elsewhere, for example the air duct of your Renault Grand Scenic 2 blocked, or a defective valve, but this is still rather rare. Do not hesitate to leave a comment if this article has been useful to you. Enjoy the road!