Is your BMW’s HVAC suddenly failing you just when you need it the most? If yes, we can show you how to get your vehicle fixed.

Let’s paint a scenario. You’re driving your BMW and looking forward to a cool blast of air on a hot summer day or the warmth of the heater on a cold winter morning only to find that your car’s air conditioning is not working. You wonder, where is the breath of fresh air, where is the relief? It’s stuck in the HVAC system. When the blower of the HVAC of your BMW is not working as expected, this makes you uncomfortable and inconvenienced especially if you have become used to a car that is always comfortable to ride in. If you are experiencing this problem, do not panic, this article will give you an overview of the signs of failure and how BMW owners can address HVAC blower problems.

Signs You Have A Failing HVAC Blower

One of the signs that your HVAC blower is faulty includes extremely low or no air from the vents when the fan is set at the highest setting. You may also hear strange noises when the blower motor is rotating. If the fan blows air in the cabin intermittently it is possible that the blower motor resistor has gone bad. Also, if the blower only works at particular fan speeds, more often than not, it points towards a faulty resistor.

How To Repair HVAC Blower Failure On Your BMW

• Check Fuse: The first thing to do is to look for the fuse that powers the blower motor. A BMW fuse box is normally found in the glove compartment or under the dashboard. The best way to find the exact fuse for the blower motor would be to look at your car owner’s manual. When you find the fuse, check whether it has blown. If it is, then replace it with an equivalent rated fuse.
• Inspect Blower Motor Resistor: If the blower operates only at some speed, then there is a problem with the resistor. The resistor is usually physically sited adjacent to where the blower motor is located. You can replace it very quickly if you know how to work with car electronics, but it's recommended that you take it to a mechanic.
• Test Blower Motor: If there is no airflow at all, then it may be time to check the blower motor. You can do this by taking out the blower motor and connecting it directly to the power source to check whether it will work. If it is not working, then a new one has to be installed.
• Check Wiring: Check the wiring to see if it has any problems or if the connection is loose in any way. Problems with the wiring or circuits are sometimes not so easy to detect, so if you are not quite sure what the problem is, it is advisable to seek the help of a professional.
• Replace the Cabin Air Filter: If the blower motor is ON, but the airflow is low this may be as a result of a blocked cabin filter. One of the easiest things that you can do to improve the airflow of the HVAC is to replace the air filter.

Where to Get Assistance For HVAC Failure In Your BMW