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Home >> Land Rover >> 2016 >> LR4 HSE >> Repair and Diagnosis >> Body & Frame >> Windows >> Glass, Frames & Mechanisms -- LR4/L319 >> Glass, Frames And Mechanisms >> Glass, Frames And Mechanisms (Diagnosis And Testing) >> Diagnosis And Testing >> Pinpoint Test >> Pinpoint Test D: Front Door Window Glass Bounce Back

Pinpoint Test D: Front Door Window Glass Bounce Back

  1. D1: CHECK WINDOW MOTOR INITIALIZATION 
    1. Initialize the door window motor. Where available, refer to: Door Window Motor Initialization .

    Did the initialization work?

    • Yes  : Test the system for normal operation.
    • No  : GO to  D2.
  2. D2: CHECK THAT THE DOOR WINDOW GLASS SEAL IS FREE FROM FOREIGN MATERIAL 
    1. Check for any foreign material or obstruction in the door window glass seal.

    Is the door window glass seal free from foreign material?

    • Yes  : GO to  D3.
    • No  : Remove any foreign material from door window glass seal and lubricate the seal. Test the system for normal operation.
  3. D3: CHECK THAT THE DOOR WINDOW GLASS SEAL IS INSTALLED CORRECTLY 
    1. Check that the door window glass seal is installed correctly.

    Is the door window glass seal installed correctly?

    • Yes  : GO to  D4.
    • No  : Install the door window glass seal correctly. Test the system for normal operation.
  4. D4: CHECK THAT THE DOOR WINDOW GLASS SEAL IS NOT WORN IN THE CHANNELS 
    1. Visually check that the door window glass seal is not worn in the door channels.

    Is the door window glass seal worn in the channels?

    • Yes  : Install a new door window glass seal as necessary. Test the system for normal operation.
    • No  : GO to  D5.
  5. D5: CHECK THE DOOR WINDOW GLASS IS SECURE 
    1. Remove the door window glass outer waist seal.
    2. Check if the door glass installed correctly and secured to the door window regulator.

    Is the door window glass correctly installed and secure?

    • Yes  : Test the system for normal operation.
    • No  : Adjust the door window glass referring to the door window glass retaining bracket procedure in this section (see below). Test the system for normal operation. If the concern persists, install a new door window regulator motor as necessary.

      Refer to: Front Door Window Regulator and Motor .

    NOTE: The door window regulator motor can be removed from the regulator. Install a new door window regulator motor and NOT the complete assembly for this concern.