Volkswagen Golf Seventh Generation (2013-2020) AC not blowing cold air what could be wrong

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.

Tools Required:

• OBD-II scanner
• Multimeter
• Refrigerant gauge set
• Socket set
• Screwdrivers

2. Recharge Refrigerant

1. Connect Refrigerant Gauge
   • Attach the high and low-pressure gauges to the AC service ports.
2. Check Refrigerant Levels
   • Assess the pressure readings against manufacturer specifications (typically between 25-40 psi for low side).
3. Add Refrigerant
   • If levels are low, connect the refrigerant canister and add refrigerant as needed, following can instructions and maintaining proper pressure.

3. Inspect and Replace AC Components (if necessary)

1. Inspect AC Compressor Clutch
   • If the clutch does not engage, test the electrical connection and replace if faulty.
2. Examine AC Condenser
   • Check for blockages or damages; clean or replace as needed.
3. Replace Expansion Valve or Receiver-Dryer
   • If the system is still not working after a recharge, replace these components as they can cause blockages.

4. Recheck System Functionality

• After repairs, reconnect the battery and test the AC system for proper operation.