Power Window Motor - Front

Remove the front door trim panel and window regulator assembly to access and replace the front power window motor on a 2009 Aston Martin DB9.

Warnings

Tools required

Parts

• Front power window motor × 1 — Use OEM specification
• Door trim panel clips (if damaged) × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Disconnect battery negative terminal and wait 2 minutes
3. Roll window to approximately mid-height position before disconnecting battery (provides better access to motor)
4. Protect door sill and exterior paint with painter's tape if desired

Procedure

1. 1

   Remove door trim panel fasteners
   Remove the Torx screws securing the door trim panel. Locate and remove the fastener(s) behind the interior door handle pull cup and in the door pull/armrest area (verify Torx sizes against factory documentation). Check the lower edge and rear edge of the door panel for additional fasteners securing the panel to the door frame. The DB9 typically uses concealed fasteners rather than exposed screws across the panel face. Note: Torx driver set (full range; verify required sizes against OEM documentation) Note: Remove the Torx screws securing the door trim panel. Locate and remove any screws concealed behind the interior door handle pull cup and in the door pull/armrest area (verify exact Torx sizes against OEM documentation). Check the lower edge and rear edge of the door panel for additional fasteners securing the panel to the door frame. Note: Locate and remove the screw(s) behind the interior door handle pull cup and in the armrest area (verify Torx/screw sizes against the Aston Martin workshop manual). Check the lower edge and rear edge of the door panel for additional fasteners securing the panel to the door frame.
2. 2

   Disconnect door control switches
   Carefully pry up the window and mirror switch pack assembly from the armrest using a trim tool. Disconnect the electrical connectors by pressing the release tabs and pulling straight up. Set the switch pack aside in a safe location.
3. 3

   Remove door trim panel
   Starting at the bottom rear corner, use plastic trim tools to release the retaining clips securing the door panel to the door frame. Work your way around the perimeter, gently pulling outward to disengage each clip. Once all clips are released, lift the panel upward to clear the door latch mechanism, then pull away from the door. Disconnect any remaining electrical connectors for puddle lights or other components attached to the panel.
4. 4

   Remove moisture barrier access
   Carefully peel back the moisture barrier film to expose the window regulator and motor assembly. The DB9 uses a plastic or foam vapor barrier that may be reusable if removed carefully. Only peel back enough to access the motor mounting area and electrical connector.
5. 5

   Secure window glass
   Raise or lower the window glass to a position where it can be secured to prevent falling. Use painter's tape to secure the glass to the door frame in the up position, or insert wooden blocks or padding between the glass and door frame to support it. Ensure the glass is stable before proceeding.
6. 6

   Disconnect window motor electrical connector
   Locate the power window motor electrical connector. Press the locking tab and disconnect the connector from the motor. On the DB9, this is typically a multi-pin connector with a sliding lock that must be moved before the connector can be released.
7. 7

   Remove window motor mounting fasteners
   Locate the bolts securing the window motor to the regulator assembly (verify exact count and fastener type against OEM documentation for the 2009 DB9). Remove all mounting fasteners completely. The motor may be riveted on some variants; if rivets are present, carefully drill them out with an appropriately sized bit, taking care not to damage the regulator assembly. Note: Locate the bolts securing the window motor to the regulator assembly (verify exact count and type against factory documentation). Remove all mounting fasteners completely. If the motor is riveted on this variant, carefully drill out the rivets, taking care not to damage the regulator assembly. Note: Locate the bolts securing the window motor to the regulator assembly (verify exact count and type against the Aston Martin workshop manual). Remove all mounting fasteners completely. If the motor is riveted rather than bolted on your variant, drill out the rivets carefully, taking care not to damage the regulator assembly. Note: Fastener count and type unverified — confirm against the Aston Martin workshop manual for the 2009 DB9 front door (motor may be bolted or riveted)
8. 8

   Separate motor from regulator
   Carefully pull the motor away from the regulator assembly. The motor drive gear must be disengaged from the regulator mechanism. Rotate the motor slightly if needed to clear the gear teeth, then remove the motor from the door cavity through the service opening.
9. 9

   Install new window motor
   Position the new window motor to the regulator assembly, ensuring the drive gear properly engages with the regulator mechanism. Align the mounting holes and verify full engagement before securing. Install the mounting bolts and torque to the OEM specification for window motor mounting bolts on the 2009 DB9 (verify exact count and torque value against factory documentation). If the original motor was riveted, use appropriate pop rivets or substitute bolts with locking washers. Note: Install the mounting bolts and torque to the factory specification for the window motor mounting bolts (verify against factory documentation); do not substitute a generic torque value. Note: Install the mounting bolts and torque to the Aston Martin factory specification for the window motor mounting bolts (verify spec against workshop manual). Note: Torque per the Aston Martin factory specification for the DB9 front window motor mounting bolts (verify against workshop manual)
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
10. 10

    Reconnect electrical connector
    Reconnect the electrical connector to the new window motor, ensuring the locking tab clicks into place fully. Verify the connection is secure by gently tugging on the connector.
11. 11

    Test window operation
    Temporarily reconnect the battery negative terminal, ensuring all SRS/airbag connectors remain seated and no one is positioned within the airbag deployment path before restoring power. Remove any tape or supports holding the window glass. Reconnect the window switch (can be done without fully reinstalling panel) and test window operation through full up and down travel. Verify smooth operation with no binding or unusual noises. Check that the window seals properly at the top and bottom positions. Disconnect battery again before proceeding with reassembly.
12. 12

    Reinstall moisture barrier
    Carefully press the moisture barrier film back into position, ensuring it adheres properly around all edges. If the original adhesive is compromised, use appropriate weatherproof tape or sealant to maintain the seal.
13. 13

    Reinstall door trim panel
    Reconnect any electrical connectors for puddle lights or components attached to the door panel. Position the door panel at the top of the door frame and hook it over the door latch mechanism. Press the panel firmly around the perimeter to engage all retaining clips. Verify all clips are fully seated by checking for gaps or loose areas.
14. 14

    Reinstall switch pack and fasteners
    Reconnect the electrical connectors to the window and mirror switch pack. Press the switch pack assembly into position in the armrest until it clicks. Reinstall all Torx screws in the door trim panel, including the fastener behind the door handle and all perimeter fasteners (verify exact Torx sizes against the Aston Martin workshop manual). Tighten securely but do not overtighten to avoid cracking the trim.

Reassembly

1. Reconnect battery negative terminal and torque to 6.0 Nm (4.0 lb-ft)
2. Perform window initialization procedure if required: with ignition on, fully lower window and hold switch down for 2 seconds, then fully raise window and hold switch up for 2 seconds to set limit stops
3. Verify all door trim clips are fully engaged and panel is secure
4. Test all door-mounted switches and controls for proper operation

Verification

• Test window operation through complete travel multiple times, verifying smooth operation in both directions
• Verify window stops properly at full up and full down positions without binding
• Check for proper window sealing at the top position with no wind noise
• Confirm all electrical functions in the door (locks, mirrors, switches) operate normally
• Inspect door trim panel for proper fitment with no gaps or loose clips
• Verify no rattles or abnormal noises from the door during window operation

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