why is my Volkswagen Golf Eighth Generation (2020-present) AC blowing warm air

Solution

1. Preparation

• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the negative battery terminal to avoid electrical shocks.
• Gather necessary tools and replacement parts.

2. Check and Recharge Refrigerant

• Tools Required: Refrigerant gauge set, refrigerant (R-1234yf), gloves.
• Verify the refrigerant level using the gauge set.
• If low, connect the refrigerant supply to the service port.
• Recharge the system according to manufacturer specifications, ensuring not to overfill.

3. Inspect and Replace AC Compressor

• Tools Required: Socket set, torque wrench, AC compressor removal tool.
• Remove the serpentine belt by releasing tension from the tensioner.
• Disconnect the electrical connector and refrigerant lines from the AC compressor.
• Unbolt the AC compressor from its mount and carefully remove it.
• Install the new AC compressor by reversing the removal steps, ensuring proper torque specifications are followed for bolts.

4. Replace Cabin Air Filter

• Tools Required: None required, but a flathead screwdriver may be useful if clips are present.
• Locate the cabin air filter housing, typically behind the glove compartment.
• Open the housing and remove the old filter.
• Install the new cabin air filter, ensuring it is oriented correctly.
• Reassemble the housing and glove compartment.

5. Reconnect Battery and Test

• Reconnect the negative battery terminal.
• Start the vehicle and turn on the AC to the maximum setting.
• Monitor the system operation for proper cooling.