Heating doesn't work: reasons, solutions and tips!

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If the Heater in the car doesn't work, this can happen especially in... Winter lead to discomfort and even safety issues. The Repair However, such defects usually require specific measures Expertise and knowledge about the vehicle structure. In the event of a heating failure, it is therefore advisable to take the vehicle into one Workshop to bring and have checked. With electric heaters, like this window heating, Exterior mirror heating, heated seats and Stationary heating system, should first be the electrical fuse be checked. A defective fuse can cause the circuit to be interrupted. This can be recognized by a burnt wire. The fuse box is primarily located under the dashboard and further details can be found in the vehicle's operating instructions.

Heating not working?

Replacing a defective fuse with one with the same electrical current is a simple solution, but should be carried out by qualified personnel to rule out other causes. If there are problems with the heating, the Engine, interior and the windows concerns, the cause often lies in the Engine cooling circuit. A defective one Thermostat or one that is too low coolant level can cause the air to stay cold and the engine not to warm up properly. The thermostat regulates the temperature of the coolant and, in the event of a defect, the engine can be constantly cooled via the large cooling circuit, which disrupts the heat supply in the interior. A coolant level that is too low, indicated by the “mark”MIN”, requires refilling coolant.

Engine warm, heater cold? The reasons!

If a The engine warms up but the interior stays cold, the problem may be due to Heat-exchanger. A clogged or leaking heat exchanger can no longer heat the air sufficiently. A common solution is this Change of heat exchanger, which usually requires removing the dashboard and opening the air conditioning circuit due to difficult access. Another problem could be a defective one blower motor be, recognizable by unusual switching noises. The engine is responsible for directing the warm air from the heat exchanger into the interior. A defective blower motor usually needs to be replaced along with the corresponding series resistor.

In summary, one thing is: Heating failure in the car A quick diagnosis and repair by qualified personnel is crucial. This not only restores comfort while driving, but also guarantees safety through clear visibility and appropriate temperatures in the vehicle.

How the car heater works:

• Otto and diesel engines: Heater connected to engine cooling circuit.
• Electric Cars: Direct electric heating using electric heating coils or by heating water in the heating circuit.
• Additional heating systems: Window heating, seat heating, auxiliary heating, exterior mirror heating, neck heating (in convertibles).

Procedure in the event of a heating failure:

• Workshop visit: Check by qualified personnel recommended.
• Diagnosis: Defect in the interior or in the engine area.
• Window and exterior mirror heating: Task of de-icing and fogging.
• Heated seats: Check electrical fuse and plug connections.

Common causes of heating failures:

• Thermostat defect: Incorrect regulation of the coolant temperature.
• Low coolant level: Leads to failure of the heating function.
• Defective heat exchanger: Blockage or leak.
• Interior blower motor: Failure leads to a lack of heat in the interior.

Costs and repairs:

• Repair costs: Vary depending on the source of the error and vehicle model.
• Simple mistakes: Like broken fuses, you can sometimes fix them yourself.

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