Is your BMW Air Conditioner blowing hot air? Learn how to fix it by following the procedure below. This procedure applies to 5 series 525i, 530i, 535i, 545i, and M5 520d 530d 535d, from 2004 to 2010
What you will need
- AC Recharge Kit
- Safety Glasses
Recharge the A/C system with the engine running, and recharge the A/C system until the reading falls within 45 and 55 psi. Always follow the instructions on the back of the A/C recharge kit carefully.
- Start the engine and let it idle.
- Ensure your vehicle is in the park.
- Start the engine while keeping the vehicle in the park. Press START to start the engine if your BMW has a keyless start feature with a START/STOP button. With the engine running, turn on the air conditioner system on your car. Set the temperature to MIN and the blower fan to MAX. Make sure the A/C button is pressed or is switched ON.
- Pull the hood release under the dashboard. Secure the hood in the up position. Ensure the hood does not fall on you while charging your BMW 5-Series with refrigerant.
- Locate the low-pressure air conditioner charging port. Remove the cap from the A/C charging port.
- Connect the a/c recharge kit to the low-pressure line. With the engine running, take a reading and ensure the refrigerant pressure is in the low zone.
- Connect the A/C recharge kit and start the car. With the A/C recharge kit connected, read the gauge. Continue to the next if the A/C pressure reading is low.
- Charge A/C Once you reach the recommended pressure level, stop adding refrigerant to your BMW 5-Series AC. Overcharging a BMW 5-Series A/C with refrigerant does not make the air blow any colder and can cause damage to the air conditioner system.
Even though other problems can cause a BMW to stop blowing cold air, low refrigerant is often the problem. Recharging the BMW 5-Series AC system with freon will sometimes fix the problem. The good news is that you can recharge a BMW 5-Series A/C with freon yourself.
When charging the BMW 5-Series A/C system, it is recommended to use an AC Recharge Kit with Gauge. The required refrigerant type is printed under the hood and in your owner’s manual.
We hope you find the 2004-2010 BMW 5-Series Charge Air Conditioner guide helpful. Check these troubleshooting and repair guides for more help on your BMW.
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