Heating system repair. Stove valve.
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Heating system repair. Stove valve.

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29.10.2021


In the cold season, you want it to be warm and comfortable not only at home, but also in the car. The heating system will help to create comfortable conditions in the cabin of your BMW, provided that it functions properly. But the presence of breakdowns in the stove is not a sentence, but a call to action, because repairs can often be done independently using a BMW repair kit.

The role of the valve in the heating system of the car

The stove is a structural component of the heating system. With its help, warm air enters the car interior. An integral part of the stove is a valve that regulates the supply of coolant. Valve for BMW is a solenoid inductor with a metal rod inside with a cone at the end. When voltage is applied to the coil, this cone closes the circuit.

If the stove valve fails, then the antifreeze can either be supplied in insufficient quantities, or, conversely, in excess, which leads to its leakage. In any case, this part of the heating system needs repair. You can fix the malfunction by resorting to the services of specialists, or you can yourself using a special repair kit for BMW.

Symptoms of a malfunctioning heating system

The obvious "symptoms" of a malfunction in the stove valve are the coolant on the floor in the passenger compartment or the "sour" immobilized tap of the heating system that does not switch.

One of the indirect signs that attracts attention, by which it is also possible to determine the presence of breakdowns in the operation of the stove valve, is the characteristic crackling in the central part of the steam. It appears when you switch the knob regulating the temperature to the "cold" position or when moving from this position to any other.

The appearance of these signs indicates that the valve of the heating system requires repair using a BMW repair kit or replacement.

Causes of valve malfunctions

"Souring" of the heating system valve occurs through the fault of the driver himself, who left this valve in the extreme position for a long period of time. This is especially true during the off-season. Carrying out repairs, in this case, will not cause any difficulties. Patience, minimal skills and a BMW repair kit will be enough.

Valve leakage is a more complex breakdown, the reasons for which lie in the appearance of cracks on the stove radiator body or on the pipes. A flashlight is enough to identify the place of a coolant leak, but repairs will not be complete without a special repair kit for BMW.

Valve repair using BMW repair kit

The heating system valve can be repaired without removing it. This will save you time, but is unlikely to be convenient. It is much easier to fix the problem by removing the valve from the stove. Before doing this, you should purchase a BMW repair kit, which, among other parts, includes four high-quality rubber O-rings. They will be needed to tightly connect the pipes with the tap, which will have to be undocked for repairs. Why exactly four rings are needed? Two will be installed between the radiator and the faucet, two - between the faucet and the pipes.

Now directly on the repair. If, after removing the stove valve, it became clear that the problem was in the solenoids: the coil contacts were burned out, which led to a short circuit or another problem was found, you should think about replacing the solenoids. Of course, you can try to repair the part, but this is unlikely to fundamentally solve the problem.

Having reached the solenoids, it is worth paying attention to cleaning the holes of this part, in which the sedimentary elements of the coolant accumulate. After carrying out this procedure, the rods of the cones will move unhindered, which will ensure the proper operation of the heating system.

The anthers of the cones may also need to be replaced if, during the repair, it was revealed that they are swollen from accumulated rust and create an obstacle to the free circulation of the coolant. You can eliminate the malfunction using a special repair kit for BMW.

If the stove valve cannot be repaired, it can be replaced by choosing the optimal, according to technical data, crane model for BMW.