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why does my Volkswagen Golf Seventh Generation (2013-2020) AC blow warm air instead of cold - Volkswagen Golf
Home/Cars/Volkswagen/Golf/Eighth Generation (2020-present)/why does my Volkswagen Golf Seventh Generation (2013-2020) AC blow warm air instead of cold

why does my Volkswagen Golf Seventh Generation (2013-2020) AC blow warm air instead of cold

Volkswagen Golf Eighth Generation (2020-present)

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

Problem Statement

Complete guide to fixing AC that blows warm air in Volkswagen Golf (2013-2020). Includes symptoms, diagnostic steps, tools required, and repair procedures.

Affected Component
HVAC
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before starting work on electrical components.
  • •Properly recover refrigerant if removing the AC compressor to prevent environmental harm.
  • •Ensure the engine is cool before working on any engine components.

Symptoms

  • •AC compressor not engaging
  • •Warm air blowing from vents
  • •Unusual noises when AC is activated
  • •Frost buildup on AC lines or evaporator
  • •Poor airflow from the vents
  • •AC warning light illuminated on the dashboard

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 canister
  • •refrigerant gauge
  • •OBD-II scanner
  • •Socket set
  • •torque wrench

Parts Required

  • •AC refrigerant
  • •AC compressor
  • •Cabin air filter

Additional Information

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

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Solution
1. Preparation
  • Gather necessary tools and materials.
  • Make sure the vehicle is parked on a level surface and the engine is off.
  • Wear safety glasses and gloves.
2. Recharge AC System
  • Tools Required: AC refrigerant canister, refrigerant gauge.
  • Sub-steps:
    1. Locate the low-pressure service port on the AC system.
    2. Connect the refrigerant gauge to the low-pressure port.
    3. Start the engine and turn on the AC to the maximum setting.
    4. Add refrigerant as necessary until the correct pressure is achieved (refer to the vehicle's service manual for specifications).
    5. Disconnect the gauge and recheck the AC performance.
3. Inspect and Replace AC Compressor
  • Tools Required: Socket set, torque wrench, AC compressor replacement.
  • Sub-steps:
    1. Disconnect the battery.
    2. Remove any components obstructing access to the AC compressor (e.g., serpentine belt).
    3. Disconnect electrical connectors from the compressor.
    4. Remove the refrigerant lines from the compressor (use proper equipment to recover refrigerant).
    5. Unbolt the old compressor and remove it from the vehicle.
    6. Install the new compressor by reversing the removal steps, ensuring all connections are secure.
    7. Refill the AC system with the correct amount of refrigerant.
4. Replace Cabin Air Filter
  • Tools Required: None (may require basic hand tools).
  • Sub-steps:
    1. Open the glove compartment and remove any contents.
    2. Locate the cabin air filter access panel and open it.
    3. Remove the old filter and clean any debris from the housing.
    4. Install the new cabin air filter, ensuring proper orientation as indicated.
    5. Reassemble the access panel and glove compartment.