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Volkswagen Golf Seventh Generation (2013-2020) AC not blowing cold air, what should I check - Volkswagen Golf
Home/Cars/Volkswagen/Golf/Eighth Generation (2020-present)/Volkswagen Golf Seventh Generation (2013-2020) AC not blowing cold air, what should I check

Volkswagen Golf Seventh Generation (2013-2020) AC not blowing cold air, what should I check

Volkswagen Golf Eighth Generation (2020-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
520 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Volkswagen Golf (2013-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
HVAC
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Ensure the AC system is not under pressure when disconnecting components.

Symptoms

  • •AC compressor does not engage
  • •Warm air blowing from vents
  • •Unusual noises from the AC system
  • •AC system cycling on and off frequently
  • •Presence of refrigerant leaks or oily residue around AC components
  • •Poor airflow from vents

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •AC refrigerant gauge
  • •Socket set
  • •Torque wrench
  • •Multimeter
  • •Vacuum pump
  • •Manifold gauge set

Parts Required

  • •AC compressor (if defective)
  • •AC refrigerant

Additional Information

Affected Component
HVAC
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
6 items
Parts Required
2 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is off.
  • Disconnect the negative battery terminal to prevent electrical shorts.
2. Check Refrigerant Level
  • Tools Required: AC refrigerant gauge
  • Connect the gauge to the low-pressure service port.
  • Read the pressure; if it's low, proceed to recharge the system.
  • If the pressure is normal, proceed to the next step.
3. Inspect and Replace AC Compressor
  • Tools Required: Socket set, torque wrench
  • If the compressor does not engage:
    • Remove the drive belt by loosening the tensioner.
    • Disconnect the electrical connector from the compressor.
    • Remove the mounting bolts and take out the compressor.
    • Install the new compressor, tightening bolts to the manufacturer’s torque specifications.
4. Recharge AC System
  • Tools Required: AC refrigerant canister, manifold gauge set
  • Vacuum the AC system using a vacuum pump for at least 30 minutes.
  • Connect the refrigerant canister to the manifold gauge set and open the low side to charge the system.
  • Monitor the pressures until they are within the specified range.
5. Reconnect Battery and Test
  • Reconnect the negative battery terminal.
  • Start the engine and turn on the AC to the maximum setting.
  • Monitor for proper cooling and ensure the compressor engages.