Window Motor and Regulator - Front

Procedure to remove and replace the front window motor and regulator assembly on a 2009 Aston Martin DB9, including door panel removal and electrical disconnection.

Warnings

Tools required

Parts

• Window regulator assembly with motor × 1 — Use OEM specification or verify aftermarket compatibility
• Door panel trim clips (assorted) × 1 — Replace any broken during removal

Preparation

1. Park vehicle on level surface and engage parking brake
2. Roll the affected window to a mid-position (approximately halfway down) for access
3. Disconnect negative battery terminal and wait 2 minutes for airbag system discharge
4. Prepare clean workspace for door panel and removed components

Procedure

1. 1

   Remove door pull handle cover and fasteners
   Locate the door pull handle assembly on the armrest. Use a trim removal tool to carefully pry out the decorative cover or insert behind the handle. Remove the Torx fasteners securing the pull handle (typically T25 or T30). Set fasteners aside in organized manner.
2. 2

   Remove interior door handle trim and fastener
   Carefully pry off the trim bezel surrounding the interior door release handle using a trim removal tool. Remove the Torx fastener behind the handle assembly. Gently pull the handle forward to disengage any clips, being careful not to damage the release cable.
3. 3

   Remove switch pack assembly
   Locate the window and mirror switch pack on the door panel armrest. Use a trim tool to carefully release the switch pack retaining clips, working around the edges to lift it free without forcing. Verify clip orientation against the DB9 service documentation before prying. Disconnect the electrical connector by pressing the release tab and pulling straight back. Set switch pack aside.
4. 4

   Remove door panel fasteners
   Remove all Torx fasteners securing the door panel to the door frame. Check along the bottom edge, in the armrest area, and behind removed components for fasteners. Fastener count and size vary; verify exact quantity and Torx size against 2009 Aston Martin DB9 service documentation before removal. Account for any fasteners hidden in recessed areas. Note: Confirm the exact door panel fastener count and Torx size against Aston Martin service documentation for the 2009 DB9 front door before removal.
5. 5

   Release door panel clips and remove panel
   With all fasteners removed, firmly grasp the door panel at the bottom edge and pull straight outward to disengage the perimeter retaining clips. Lift the panel upward to clear the door latch striker area, then angle away from door frame. Disconnect any remaining electrical connectors for speakers or courtesy lights. Remove door panel and place on protected surface.
6. 6

   Peel back water barrier
   Carefully peel back the plastic water barrier sheet to access the inner door structure. Work slowly to avoid tearing the barrier material. If necessary, use a heat gun on low setting to soften adhesive. Preserve the barrier's condition for reuse where possible; if the barrier is torn or the adhesive is compromised, replace it to maintain the moisture seal. Note: Preserve the water barrier or door module seal in reusable condition if possible; verify whether the 2009 DB9 uses a peel-back plastic sheet or a rigid carrier module per Aston Martin service documentation.
7. 7

   Secure window glass in raised position
   Before disconnecting the battery, use the window switch to raise the glass to the near-full up position where it can be secured to the door frame; this provides better support than a mid-position for regulator removal. Confirm the preferred glass position against 2009 Aston Martin DB9 service documentation. With the glass raised, use masking tape to secure the glass to the door frame, or install temporary support blocks between glass and door frame to prevent drop. Do not reconnect the battery to operate the window at this stage; the glass should already be secured in the raised position. Note: Window should already be positioned during preparation before battery disconnect. If repositioning is required, secure glass manually; do not reconnect the battery with the door open and airbag circuit exposed. Note: Before disconnecting the battery, raise the window glass to near-full up position. Then, with battery disconnected, use masking tape to secure glass to door frame, or install temporary support blocks between glass and door frame to prevent drop.
8. 8

   Disconnect window motor electrical connector
   Locate the window motor electrical connector inside the door cavity. Press the connector release tab and pull connector straight off motor terminals. Route connector away from work area.
9. 9

   Detach window glass from regulator carrier
   Locate the bolts or fasteners securing the window glass to the regulator lift channel/carrier. These fasteners are accessible through access holes in the door frame; verify the exact type and size (commonly Torx or hex-head) against Aston Martin service documentation for the 2009 DB9. Remove these fasteners and carefully separate glass from regulator mechanism. Ensure glass remains securely supported. Note: Glass-to-carrier fastener type and size vary; verify against 2009 Aston Martin DB9 service documentation and access through the door frame service holes.
10. 10

    Remove regulator assembly mounting fasteners
    Locate and remove all fasteners securing the regulator assembly to the inner door structure. The number and type of regulator mounting fasteners must be confirmed against Aston Martin service documentation for the 2009 DB9 front door before removal. Note the position of any spacers or alignment features. Support the regulator assembly as you remove final fasteners to prevent it from dropping. Note: Regulator mounting fastener count, type, and size vary; verify against 2009 Aston Martin DB9 service documentation before removal.
11. 11

    Extract regulator and motor assembly
    Carefully maneuver the window regulator and motor assembly out through the service opening in the door frame. The regulator arms may need to be positioned at specific angles to clear the opening. Avoid forcing the assembly; rotate and angle as needed for clearance.
12. 12

    Install new regulator and motor assembly
    Position the new regulator assembly and carefully feed it through the door service opening. Align the mounting holes with the door frame attachment points. Install all mounting fasteners hand-tight first, then torque to the manufacturer-specified value in sequence per 2009 Aston Martin DB9 service documentation. Verify regulator arms move freely without binding. Note: Install all mounting fasteners hand-tight first, then torque to the manufacturer-specified value (verify in Aston Martin service documentation for the 2009 DB9) in a cross-pattern to ensure even seating.
13. 13

    Attach window glass to regulator
    Remove temporary glass support. Align window glass with regulator lift channel/carrier. Install and tighten the glass attachment fasteners. Ensure glass is properly seated in the channel and secured evenly.
14. 14

    Connect motor and test operation
    Reconnect the window motor electrical connector, ensuring it clicks fully into place. Temporarily reconnect battery negative terminal. Test window operation through full travel up and down. Verify smooth operation without binding, unusual noise, or misalignment. Adjust if necessary, then disconnect battery again.
15. 15

    Reinstall water barrier and door panel
    Reposition the water barrier sheet, ensuring complete adhesion around perimeter to maintain moisture seal. Reconnect any electrical connectors for door panel components. Align door panel with door frame, engaging the top edge in the window channel first, then pressing firmly around perimeter to engage all retaining clips. Install all door panel fasteners, working from center outward. Reinstall switch pack, interior handle trim, and door pull components. Reconnect battery terminal.

Reassembly

1. Ensure all electrical connectors are fully seated with audible clicks
2. Verify water barrier is completely sealed to prevent moisture intrusion
3. Check that all door panel clips are properly engaged before installing fasteners
4. Confirm door panel fits flush with no gaps or misalignment

Verification

• Test window operation through full range of travel multiple times, verifying smooth movement in both directions
• Verify window auto-up and auto-down functions (if equipped) operate correctly and stop at proper positions
• Check for unusual noise, binding, or slow operation during window movement
• Confirm window seals properly against weatherstripping when fully closed
• Test all door panel switches and functions to ensure proper electrical connections
• Verify door panel is secure with no rattles or loose components

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