If it’s hot in a situation of car air conditioner blowing hot air , then it’s an engine problem. If that’s the case, then hopefully you’ve got your receipt and can exchange it. I have a 2004 BMW 745Li Recently I have noticed that my AC blows out hot air. It is mild weather here and still winter, but the temperature here got above 80° F today, and when I came home from work, I decided to turn the AC on to cool the place down a bit. Pelican Parts Forums > BMW Forums > BMW Technical Forums > BMW 5-Series E28/E34/E39/E60/F10/GT: Fan and AC blowing HOT air Related article: Why and how to change an air filter. This article is for you. Please help Was not overly warm here today , about 84 degrees. Nairaland Forum / Nairaland / General / Car Talk / Car Ac Blowing Hot Air... (1111 Views) My Toyota Camry 2003 AC Blowing Hot At Driver Side But Cold On Passenger Side. The worst situation is feeling the warm air blowing out of the AC on a particularly hot day. I left the dealership and determined the air was still hot from the defroster and footwell vents. Get AC maintenance done during the spring. Our BMW’s air conditioner is essential to keeping our car comfortable and cool. That means that the only air that can blow over the evaporator coils is the air inside the unit itself. Your car AC is actually a heat exchanger that recirculates warm air from inside the cabin and replaces it with cold air. I will start with normal reason, then move on to something-wrong-with-the-car reasons 1. The first thing to check is the levels of Freon in the system. Sorry if this has been posted and answered before...I have a brand new (less than 4k miles S90D) and today my AC stopped blowing cold air, even tough it worked perfectly all day. You should be able to look up the location of your compressor and see this for yourself, depending on what BMW you have. When you get in your car on a hot day, your car will likely blow warm air at first. My 2002 BMW X5 3.0 stopped blowing air from the AC/heater. Vents are blowing warm air even when ac is on and even when heat is on 1 Answer All vents are blowing warm air with ac on.....freon level is reading 100 psi....what do i do 2002 BMW 3 Series 325i Sedan RWD Failing Expansion Valve – Is your auto’s A/C alternating between blowing cold then hot air? The technician said he ran the car with the defrost and footwell vents open while runni ng the a/c for 20 minutes. While there are many, many reasons your air conditioner is blowing hot air, we’ll run through the most common causes that you can fix or diagnose on your own. The problem of a car air conditioner blowing hot air on one side is mostly seen in cars which have a dual zone climate control system. Return vents closed or blocked. What are common reasons my BMW 535i has air conditioning problems? Want to figure out what the problem is before calling an air conditioning professional? Yet the problems that can cause an auto AC to perform in such a way tend to be the same problems. A reason you may feel your AC blowing warm air is because something in the circuit board may be malfunctioning. Car Ac Blowing Hot Air... - Car Talk - Nairaland. Keeping an eye on these problems will not only will this keep your air conditioner from blowing hot air, it will also prevent a costly breakdown. AS A BMW (5) OWNER, you need to clean your dual temperature sensor. This is what we call a "No Cool", and it's a common air conditioning problem that may or may not be an easy fix. Dont know if anyone would be able to help. A refrigerant is a special kind of gas (but compressed to liquid) that gives the unit its cooling ability. Sometimes, car air conditioner blowing hot air instead of cold air. That being said turn on the a/c and rear fan and move the driver control from full hot wait til you hear air flow change in back to full cold you should than hear airflow change to top vents. When Freon starts to get low, the A/C can start intermittently blowing out cool air—particularly when it reaches a certain speed—and blowing hot air at … The best way to prevent the problem of an AC blowing warm air is to schedule annual air conditioner tune-ups from Hydes. During the summer months, temperatures will regularly reach about 120 degrees for weeks at a time, and good maintenance habits can reduce the chance of AC failure. I have a 2003 bmw 32is car was sitting for a year airconitioner blowing hot air what do you think is wrong. I have cheked the freon level it is to the max, also added some oil into the line, the problem persists. If this is the case, your system can shut itself off which could be a reason your AC is blowing warm air. If your AC is blowing hot air, the thermostat may have been accidentally set to “heat.” If this is the case, it’s easy to fix on your own. The AC unit is one of the most frequently used parts of your car. Here is my experience with this issue: unequal cold air from side and center vents, random hot air on the floor or defrost up while air is on, or cold air coming from both side vents and warm air from the center vents. With the summer months approaching, it is important to have your air conditioner in good condition. If you’ve been having trouble with your car’s air conditioner lately, there are a few reasons it could not be working properly. When it is working properly, your cars' air conditioner is a wonderful thing. Favorite Answer. Due to the high temperatures in the summer, a car air conditioner is more than just a comfort feature, it is a necessity! In most cases, it's due to a loss of refrigerant in the system. These are some of the reasons yuo may be experiencing weak or no air. Relevance. How to Troubleshoot an Air Conditioner That Blows Warm Air. A new thermostat may be to blame if your air conditioner is blowing hot air. 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