One of the most bothersome problems that can appear on a Mercedes Viano is to see its temperature gauge increasing. The reality is, a gauge that rises above 90/100° is in most cases an indicator that your Mercedes Viano is heating up. If you are in this case, you have done well to click on this link because we will make it easier for you to find out the origin and understand the cause. To achieve this, firstly, we will look into the explanations for engine overheating and the risks you run, and next, what answers are available to you to eliminate this phenomenon.

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Why is my Mercedes Viano overheating? What are the risks?

A Mercedes Viano that heats up is a sign of a serious problem. You should not think that you will deal with it in the future because, if you do, you risk irreversibly harming the engine of your car. In reality, if your Mercedes Viano heats up, and you keep driving, you simply risk the breakage of your car engine. An internal combustion engine works through combustion, which causes heat. This heat must be minimized because it can harm the engine parts. If you see white smoke starting to come out of your engine and you experience a loss of power, your Mercedes Viano is heating up and you are harming your engine, you must stop.

What are the causes of an heating up Mercedes Viano ?

  • A leak in the cooling system

    If you regularly run out of coolant and refill your system on a regular basis, you may have a leak, so have your system checked for leaks. It is also plausible that it is your cylinder head gasket that is defective, in which particular case you should recognize “mayonnaise” in the area of your engine oil cap.
  • A dead calorstat
    The intent of this part is to switch on the engine cooling only when the engine is at optimum temperature, if it is ruined, the coolant will never reach the engine and your Mercedes Viano will heat up. Check its condition.
  • A blocked radiator
    Despite the fact this situation is rarer, if your radiator is very dirty, or clogged with impurities, its cooling fins will no longer perform their job and on hot days your Mercedes Viano might overheat.
  • A fan that no longer works
    Be sure you examine the state and performance of your fan, furthermore to the air produced by the speed of your Mercedes Viano, it has a decisive role in cooling your engine when it has to be the relay when you drive slower. In the event of a breakdown and travelling at low speed, your car will inescapably heat up.
  • A damaged water pump
    To conclude, it is plausible that your water pump is at the end of its life. In reality, its purpose is to rotate the coolant throughout the circuit, in case of problem this action stops and your Mercedes Viano heats up. This might be caused by a defective belt that has damaged your pump. If this is your case, go to your workshop.

How can I solve the problem of an heating up Mercedes Viano?

In addition to having checked all the parts that may be causing your Mercedes Viano to heat up, you will have to make the right decisions to limit the risks in case your vehicle gets hot and you have no other solution than to go home, or to go to your mechanic.
Here are a few recommendations if your car is overheating:

  • Reduce your engine speed but not your speed:
    Reducing your engine speed will allow you to limit the heat released by the engine. On the other hand, try to stay in 5th gear at 70/80 km/h in order to have a large natural airflow to control the heating of your Mercedes Viano.
  • Stop the engine of your Mercedes Viano if you meet or exceed 100°:
    Don’t be in a hurry, in a case of overheating, it is better to take breaks and let the engine cool down rather than pushing it and risking breakage.
  • Turn on your heater:
    Turning on the heater will allow you to gets rid of some of the heat from the engine block, it is an useful answer. And conversely, turn off your air conditioner which generates heat.

If you have any further questions about the Mercedes Viano, do not hesitate to consult our Mercedes Viano category.