Washer Pump

This procedure covers removal and replacement of the windshield washer pump on a 2009 Aston Martin DB9, including access to the washer fluid reservoir in the front wheel well.

Warnings

Tools required

Parts

• Windshield washer pump × 1 — Use OEM specification
• Washer reservoir grommet (if damaged) × 1 — Use OEM specification

Fluids

• windshield washer fluid — 4.2 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn ignition off and remove key fob from vehicle
3. Allow engine to cool if recently driven
4. Gather all tools and new washer pump before beginning

Procedure

1. 1

   Turn front wheels for access
   Turn the steering wheel fully to expose the front wheel well area on the side where the washer reservoir is located (verify reservoir side per OEM documentation). This provides better access to the wheel arch liner. Note: Turn the steering wheel fully to the left to open up the driver side front wheel well area. This provides better access to the wheel arch liner.
2. 2

   Remove wheel arch liner fasteners
   Locate the wheel arch liner securing the front portion of the driver side wheel well. Remove the Torx fasteners securing the forward and lower sections of the liner. The number of fasteners securing the liner section varies — inspect the full perimeter to locate all attachment points (count and Torx size per OEM documentation). Note fastener locations for reassembly. Note: Torx bit set (T20, T25, T30)
   ℹ️Fastener count and positions may vary slightly. Check the entire perimeter of the liner section for all attachment points before pulling.
3. 3

   Pull back wheel arch liner
   Carefully pull the forward section of the wheel arch liner away from the fender to expose the washer fluid reservoir and pump assembly. The liner is flexible and should fold back without removal. Use a trim tool if needed to release any retaining clips.
4. 4

   Locate washer pump
   Identify the washer pump mounted in the lower portion of the washer fluid reservoir. The pump is a small cylindrical component with an electrical connector on top and outlet hose attached. Use a work light to clearly see the pump and connections.
5. 5

   Disconnect electrical connector
   Press the release tab on the electrical connector attached to the washer pump and pull the connector straight off the pump terminals. The connector should release with firm pressure on the tab.
6. 6

   Disconnect outlet hose
   Locate the washer hose connected to the pump outlet. Squeeze the hose clamp or press the quick-disconnect fitting (depending on connection type) and pull the hose straight off the pump outlet. Expect some fluid drainage from the hose.
7. 7

   Drain reservoir
   Position a drain pan under the reservoir. Washer fluid will drain when the pump is removed. Allow as much fluid as practical to drain into towels or the pan to minimize spillage.
8. 8

   Remove washer pump from reservoir
   Grasp the pump body firmly and pull it straight out/down from the reservoir mounting grommet (if a twist-lock is present, rotate approximately 1/4 turn to unlock first). The pump is typically retained by a press-fit rubber grommet that may require firm pulling to release. The pump is sealed with a rubber grommet that may require firm pulling to release. Catch any remaining fluid that drains from the reservoir opening. Note: Grasp the pump body firmly and pull it straight out of the reservoir mounting grommet (note: some pumps may use a slight twist to unlock — verify mounting type before forcing). The pump is sealed with a rubber grommet that may require firm pulling to release. Note: Grasp the pump body firmly and pull it straight out/down to release it from the reservoir mounting grommet. Note that some pumps are press-fit into a rubber grommet while others use a quarter-turn bayonet retention — verify the retention type before applying rotational force. The pump is sealed with a rubber grommet that may require firm, steady pulling to release. Catch any remaining fluid that drains from the reservoir opening.
9. 9

   Inspect reservoir grommet
   Examine the rubber grommet in the reservoir where the pump was mounted. Check for cracks, tears, or loss of elasticity. If the grommet is damaged, pry it out of the reservoir and replace it with a new one. A damaged grommet will cause leaks.
10. 10

    Install new washer pump
    Insert the new washer pump into the reservoir grommet, aligning the outlet and connector for access. Push the pump fully into the grommet until seated (if equipped with a twist-lock, rotate clockwise approximately 1/4 turn to lock). Ensure the pump is secure and the seal is tight. Ensure the pump is secure and the seal is tight. Note: Insert the new washer pump into the reservoir grommet opening. Push the pump fully into the grommet until seated (if the pump uses locating tabs or a twist-lock, align and secure per the mounting type). Ensure the pump is secure and the seal is tight. Note: Insert the new washer pump into the reservoir opening/grommet. Push the pump fully into the grommet until seated. If the pump uses a bayonet-style retention, rotate it to lock in place; if it is a press-fit, ensure it is fully and squarely seated. Ensure the pump is secure and the seal is tight.
11. 11

    Reconnect outlet hose and electrical connector
    Push the washer hose firmly onto the pump outlet until it seats completely. If equipped with a clamp, ensure it is positioned correctly over the connection. Connect the electrical connector to the pump terminals, pressing until you hear or feel a click indicating it is fully seated.
12. 12

    Refill washer fluid reservoir
    Add windshield washer fluid through the reservoir filler neck under the hood until the reservoir is full. Refer to OEM specification for exact reservoir capacity. Use proper windshield washer fluid, not plain water. Note: Add windshield washer fluid through the reservoir filler neck under the hood until the reservoir is full. Verify the reservoir capacity against manufacturer documentation. Note: Add windshield washer fluid through the reservoir filler neck under the hood until the reservoir is full (verify reservoir capacity against OEM specification). Use proper windshield washer fluid, not plain water.
13. 13

    Reinstall wheel arch liner
    Position the wheel arch liner back into place, ensuring all edges are properly aligned with the fender and wheel well. Install all Torx fasteners in their original locations, working from top to bottom to maintain proper alignment. Ensure the liner is secure and not interfering with tire rotation.

Reassembly

1. Return steering wheel to center position
2. Verify wheel arch liner is secure and all fasteners are tight
3. Check that no tools or parts were left in the wheel well area

Verification

• Turn ignition to ON position (engine off) and activate the windshield washer system
• Verify washer fluid sprays normally from both front nozzles
• Check for leaks around the pump installation point in the reservoir
• Listen for normal pump operation without unusual noise or cavitation
• Inspect wheel well area for any fluid leaks after operation
• Verify wheel arch liner is properly secured and does not contact the tire when turning

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