What is the reason for the BMW 5 Series air conditioning not cooling?

[VanJeremiah]

The reasons for the BMW 5 Series air conditioning not cooling are: 1. The condenser and air filter are too dirty; 2. Belt aging leads to poor heat dissipation of the air conditioning condenser and insufficient air output; 3. The air conditioning compressor cannot work normally; 4. The air conditioning temperature sensor is faulty. The solutions for the BMW 5 Series air conditioning not cooling are: 1. Clean the condenser and air filter; 2. Replace the belt in time; 3. Check whether the air conditioning compressor is working normally; 4. Replace the air conditioning temperature sensor. Taking the 2021 BMW 525li as an example, it is a mid-to-large-sized car with body dimensions of: length 5106mm, width 1868mm, height 1500mm, and a wheelbase of 3105mm. The 2021 BMW 525li is equipped with a 2.0t turbocharged engine, with a maximum horsepower of 184ps, maximum torque of 290nm, and maximum power of 135kw.

[MacBryce]

Having driven for over a decade, I've seen quite a few cases where BMW air conditioners fail to cool properly. The most common issue is refrigerant leakage—over time, the gas slowly escapes, reducing cooling efficiency. The compressor might also malfunction; if it stops running or operates abnormally, the AC won't blow cold air at all. Additionally, if the condenser gets clogged with dust or the cooling fan fails, heat can't dissipate, causing the AC to stop working. Dirty filters blocking airflow or faulty temperature sensors disrupting control are other potential factors. These problems are especially frustrating in summer, as they can distract drivers and lead to hazards. I recommend getting a professional inspection early, since BMW systems are quite sophisticated—avoid DIY repairs to prevent further damage. Regular maintenance checks on the AC system can prevent such issues. Always prioritize safety and comfort.

[SanRylee]

BMW car AC not cooling well? As a car enthusiast, I've studied many cases. The root cause might lie in the refrigeration cycle: insufficient refrigerant is the most common issue, and a leak check can pinpoint the problem; compressor failure leads to unstable pressure, reducing cooling efficiency; clogged condenser or evaporator affects heat exchange; loose fans or belts can also weaken cooling capacity. Don't overlook the electronic control components, like a faulty control module or blown fuse, which may cause the AC to shut off automatically. During maintenance, pay attention to whether the cabin air filter is clean, as a dirty one can obstruct airflow. From personal experience, adding refrigerant made my AC cold again, but I recommend leaving it to professional technicians to avoid damaging other systems through improper handling. Timely repairs not only enhance comfort but also extend the vehicle's overall lifespan—keeping your car healthy is what matters most.

[VonGenesis]

The BMW's air conditioning isn't cooling in summer? That's really annoying. I've found common causes like refrigerant leaks or insufficient levels, which make the AC blow warm air; a broken compressor that won't start at all; a condenser clogged with dirt that can't dissipate heat; or a stuck fan causing poor airflow. Additionally, a dusty filter can block the vents, or a faulty control switch may prevent temperature adjustment. These issues can mildly affect driving comfort or, worse, increase the risk of accidents due to fatigue in high temperatures. The first step is to check if the filter needs replacing or cleaning. If that doesn't help, head to a repair shop for a thorough check—ensuring driving safety is paramount. Don't ignore minor issues to avoid major repairs later.