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Volkswagen Golf Seventh Generation (2013-2020) AC not blowing cold how to fix it - Volkswagen Golf
Home/Cars/Volkswagen/Golf/Eighth Generation (2020-present)/Volkswagen Golf Seventh Generation (2013-2020) AC not blowing cold how to fix it

Volkswagen Golf Seventh Generation (2013-2020) AC not blowing cold how to fix it

Volkswagen Golf Eighth Generation (2020-present)

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

Problem Statement

Learn how to diagnose and fix the AC not blowing cold in a Volkswagen Golf (2013-2020). Step-by-step guide with tools, symptoms, 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 fully recovered before opening any refrigerant lines.

Symptoms

  • •AC system blowing warm air instead of cold
  • •Unusual noises from the AC compressor
  • •AC not engaging or cycling frequently
  • •Refrigerant leak detected (e.g., oil residue around AC components)
  • •Foul odor from AC vents
  • •Dashboard temperature control not functioning properly

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

  • •OBD-II scanner
  • •Manifold gauge set
  • •AC recovery machine
  • •Socket set
  • •Torque wrench
  • •AC compressor removal tool
  • •Safety goggles
  • •Gloves

Parts Required

  • •Refrigerant
  • •New AC compressor (if needed)
  • •Cabin air filter

Additional Information

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

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface.
  • Disconnect the battery to prevent electrical shocks.
2. Recharge Refrigerant
  • Tools Required: Manifold gauge set, refrigerant, safety goggles, gloves.
  • Sub-steps:
    1. Connect the low-pressure side of the manifold gauge to the AC service port.
    2. Start the engine and turn the AC to the maximum setting.
    3. Check the gauge reading; if low, proceed to recharge.
    4. Attach the refrigerant canister to the manifold gauge and open the valve to add refrigerant until the correct pressure is achieved (check manufacturer specifications).
    5. Monitor the gauge and ensure the system stabilizes.
3. Replace AC Compressor (if faulty)
  • Tools Required: Socket set, torque wrench, AC compressor removal tool.
  • Sub-steps:
    1. Recover the refrigerant from the system using an AC recovery machine.
    2. Disconnect the battery and remove the front bumper if needed for access.
    3. Remove the drive belt from the AC compressor.
    4. Disconnect the electrical connector and refrigerant lines from the compressor.
    5. Remove the AC compressor from its mounting location.
    6. Install the new compressor and secure it with bolts to the manufacturer's torque specifications.
    7. Reconnect the refrigerant lines and electrical connectors.
4. Replace Cabin Air Filter (if clogged)
  • Tools Required: None (usually requires hand tools).
  • Sub-steps:
    1. Locate the cabin air filter compartment, usually behind the glove box.
    2. Remove the glove box to access the filter.
    3. Remove the old filter and inspect for debris.
    4. Install the new cabin air filter ensuring it is oriented correctly.
5. Recheck System
  • Recharge the AC system with refrigerant if necessary.
  • Reconnect the battery and start the vehicle.