5 Reasons Why Your Mercedes-Benz Heater is Blowing Cool Air

Car Heater

On those chilly, Los Angeles mornings and nights, you're going to want your car heater to warm you up. When your vehicle's cooling system stops working, you may notice that there's little to no heat coming from the vents, foggy windows, and coolant leaks around. At Jeff's Mercedes Auto Service, we can help you regain control of your Mercedes-Benz cabin temperature. No matter what time of year it is, you should be driving comfortably in such a luxurious car.

Common Causes for Car Heater Problems in Mercedes-Benz

Low Coolant

Your Benz uses coolant to keep your engine at a tolerable temperature. When you have your heater turned on, the coolant works within the heater core to deliver the engine's warm air through your vents. If your car is low on this fluid, often due to a leak, it won't be able to reach the heater core at all.

Problems with the Heater Core

Speaking of the heater core, it may be the cause of no heat. This part has tubes that move the coolant around and fans to disperse the heat. If your coolant levels look sufficient, the heater core is most likely at fault.

Damaged Heater Controls

It may be possible that your Mercedes-Benz heater problem is due to a malfunction with the temperature control buttons. Over time these switches can get worn out or break and stop functioning.

Faulty Thermostat

The thermostat does precisely what you think it does: monitor the temperature of the engine. If it can't give accurate readings or read the temperature at all, the coolant will never get sent where it needs to be. As a result, you won't have heat.

If you're experiencing issues with your Mercedes-Benz heater, please do not hesitate to call or visit the experts at Jeff's Mercedes Auto Service.