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Home/Cars/Renault/Clio/V (2019-Present)/why does my Renault Clio V (2019-Present) air conditioning blow hot air

why does my Renault Clio V (2019-Present) air conditioning blow hot air

Renault Clio V (2019-Present)

Error Codes
Severity: mediumDifficulty: medium2-4 hours
3 min read
586 words

Problem Statement

Learn how to diagnose and fix the air conditioning blowing hot air in Renault Clio V. Step-by-step guide with diagnostic procedures and repair instructions.

Component
HVAC
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect battery before working on electrical systems
  • ⚠Always wear safety glasses and gloves when handling refrigerant
  • ⚠Ensure the engine is off and has cooled down before starting repairs

Symptoms

  • •Air conditioning system not cooling the air
  • •Unusual noises from the A/C compressor
  • •A/C system blowing air at ambient temperature
  • •A/C warning light illuminated on the dashboard
  • •Frequent cycling of the A/C compressor

Diagnostic Steps

  1. 1Scan for error codes using OBD-II scanner
  2. 2Check refrigerant levels using a manifold gauge set
  3. 3Inspect the A/C compressor visually for signs of damage or leaks
  4. 4Test the A/C compressor operation by engaging and disengaging the clutch
  5. 5Examine the cabin air filter for clogs or restrictions
  6. 6Check the A/C control settings to ensure the system is set to cool

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface.
  • Disconnect the battery to avoid electrical shorts during repair.

2. Recover Refrigerant

  • Tools Required: A/C recovery machine
  • Use the A/C recovery machine to safely remove any refrigerant from the system before performing repairs.

3. Check and Recharge Refrigerant

  • Tools Required: Manifold gauge set, refrigerant
  • Attach the manifold gauge set to the A/C service ports.
  • Check the low and high side pressures. If pressures are below specifications, charge the system with the appropriate type and amount of refrigerant as per the manufacturer’s specifications.

4. Inspect and Replace A/C Components

  • A. Inspect A/C Compressor
    • Visually inspect for any signs of wear or leaks.
    • If found defective, remove the A/C compressor by unfastening the mounting bolts and disconnecting the electrical connector and refrigerant lines.
  • B. Replace Cabin Air Filter
    • Locate the cabin air filter housing, usually behind the glove box.
    • Remove the old filter and replace it with a new one, ensuring proper orientation.

5. Reconnect and Recharge

  • Reconnect all components, ensuring all connections are secure.
  • Use the A/C recovery machine to evacuate the system to remove moisture.
  • Recharge the system with the correct refrigerant amount.

6. Test System Operation

  • Reconnect the battery.
  • Start the engine and turn on the A/C to verify that it is now blowing cold air.
  • Monitor the A/C system for any unusual noises or leaks.

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
  • A/C recovery machine
  • Socket set
  • Torque wrench

Parts Required

  • Refrigerant (R134a or as specified by manufacturer)
  • A/C compressor (if faulty)
  • Cabin air filter

Additional Information

Component

HVAC

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

3 items

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