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Home >> Jaguar >> 2015 >> XFR-S >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (Climate Control System - General Information -- XF/X250) >> Climate Control System - General Information >> Diagnosis And Testing >> Climate Control System >> Pinpoint Tests >> Pinpoint Test G: Air Conditioning System Noise Tests

Pinpoint Test G: Air Conditioning System Noise Tests

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  1. G1: AIR CONDITIONING SYSTEM NOISE TEST 1 
    1. Reproduce the reported air conditioning system noise

      Is the noise present only when setting the air conditioning system to on?

      • Yes  : GO to  G3.
      • No  : GO to  G2.
  2. G2: AIR CONDITIONING SYSTEM NOISE TEST 2 
    1. Reproduce the reported air conditioning system noise

      Is the noise present only when the air conditioning system to operating?

      • Yes  : GO to  G4.
      • No  : GO to  G7.
  3. G3: AIR CONDITIONING SYSTEM NOISE TEST 3 
    1. Set the air conditioning on and off repeatedly and check the noise made by the air conditioning compressor clutch

      Is the noise made by the air conditioning compressor clutch excessively loud (compare to another similar vehicle for reference)?

      • Yes  : Refer to the relevant service information and install a new air conditioning compressor
      • No  : No further action
  4. G4: AIR CONDITIONING SYSTEM NOISE TEST 4 
    1. Check the installation of the air conditioning pipes:
      • Check that all brackets are present and secure
      • Check for foul conditions

      Is the noise caused by a problem with the air conditioning pipe installation?

      • Yes  : Rectify as necessary. Re-test the system
      • No  : GO to  G5.
  5. G5: AIR CONDITIONING SYSTEM NOISE TEST 5 
    1. Set the air conditioning to on and check assess the duration of the noise

      Does the noise occur for a short period immediately after setting the air conditioning to on?

      • Yes  : Refer to the relevant service information and install a new thermostatic expansion valve. Re-test the system
      • No  : GO to  G6.
  6. G6: AIR CONDITIONING SYSTEM NOISE TEST 6 
    1. Using the manufacturer approved equipment, recover the refrigerant

      Was the weight of the recovered refrigerant different than specified for the air conditioning system?

      • Yes  : Using the manufacturer approved equipment, evacuate and recharge the air conditioning system with the correct quantity of refrigerant and oil
      • No  : GO to Pinpoint Test C .
  7. G7: AIR CONDITIONING SYSTEM NOISE TEST 7 
    1. Assess the source of the noise

      Is the noise caused by the air conditioning compressor (bearing, contact between rotating and fixed components)?

      • Yes  : Refer to the relevant service information and install a new air conditioning compressor
      • No  : No further action
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