When your Mercedes fails to blow warm air on that cold night, chances are there is something wrong with the heater core or the other parts of the heating system. Heater core looks like a small radiator, and that is exactly what it is. Hot coolant carrying heat from the engine cycles through the heater core, and when you turn on warm air, blower motor directs air over this radiator, causing the air to warm up, and then through the vents it enters the cabin.
When this system malfunctions, it is likely that either the blower motor is not doing its job (no air is coming out of the vents), or there is a problem with the heater core itself. Low coolant levels will negatively impact heating function, and they are often due to heater core leaks. Clogged heater core can also results in insufficient heat transfer, and so can a faulty heater valve. At MB Clinic we will diagnose the exact reason for the failure - there are many reasons why heating might not work, though heater core and low coolant levels are high on the list. Once our thorough inspection and diagnostics reveal the exact cause of failure, our factory trained technicians will design a course of action that, with your approval, will fix the problem, and get you Mercedes back on the road.
All work performed by our nationally certified mechanics carries 36,000 mile / 3 year warranty. We can offer such warranty not only because of the quality of our work, but also because of the genuine Mercedes parts we use. We have long standing relationships with parts suppliers and we know the quality of the parts we install in your vehicle (authorities across the world, in cooperation with Mercedes, seize over a million of fake Mercedes parts every year - at MB Clinic the parts we use are genuine.)
If your Mercedes-Benz ever fails to produce warm air on demand, or has any other heating problems, call MB Clinic. Our friendly service advisors will make a convenient appointment, and we will get your vehicle tested, repaired and ready for your continued enjoyment. Call us at the shop or make an appointment on our website - after a visit to MB Clinic your Mercedes will serve you faithfully again.