Washer Reservoir

This procedure covers the removal and replacement of the windshield washer fluid reservoir on the 2016-2021 Honda Civic with the 1.5L turbocharged engine.

Warnings

Tools required

Parts

• Washer reservoir assembly × 1 — 76841-TBA-A01 or equivalent
• Push pin retaining clips (if damaged) × 3 — 91503-SZ3-003

Fluids

• Windshield Washer Fluid — 3.5 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn front wheels to full right lock to improve access to left front wheel well
3. Open hood and locate washer fluid cap on reservoir
4. If possible, use existing washer fluid until reservoir is nearly empty to minimize spillage

Procedure

1. 1

   Access wheel well liner
   From underneath the left front of the vehicle, locate the inner fender liner. Remove the push pin fasteners securing the front portion of the wheel well liner. Typically 3-4 clips secure the forward section. Use a flathead screwdriver or panel tool to pry out the center pin, then remove the entire fastener.
2. 2

   Fold back wheel well liner
   Carefully pull the wheel well liner forward and downward to expose the washer reservoir. You do not need to completely remove the liner, just fold it back enough to access the reservoir mounting area and connections.
3. 3

   Disconnect washer pump electrical connector
   Locate the washer pump motor on the bottom of the reservoir. Press the locking tab on the electrical connector and pull it straight off the pump motor. The connector has a positive lock that must be released.
4. 4

   Disconnect washer hose
   Squeeze the tabs on the washer hose quick-connect fitting and pull the hose off the pump outlet. Be prepared for residual fluid to drain from both the hose and reservoir. Have your drain pan positioned beneath this area.
5. 5

   Drain remaining fluid
   If significant fluid remains in the reservoir, remove the cap from the top and use a fluid transfer pump or carefully tip the reservoir to drain fluid into your drain pan. This will lighten the reservoir and prevent spillage during removal.
6. 6

   Remove reservoir mounting fasteners
   Remove the two 10mm bolts securing the reservoir to the inner fender structure. The upper bolt is accessed from above through the engine bay, and the lower bolt from below through the wheel well opening. Support the reservoir with one hand while removing the final fastener.
7. 7

   Remove washer reservoir
   Carefully maneuver the reservoir down and out through the wheel well opening. The reservoir may need to be angled to clear the inner fender structure. Watch for any remaining fluid and protect painted surfaces.
8. 8

   Transfer pump motor if reusing
   If the new reservoir does not include a washer pump, remove the pump from the old reservoir by twisting counterclockwise and pulling out. Clean the pump grommet area and inspect the grommet for damage. Transfer to the new reservoir by aligning the tabs and twisting clockwise until locked.
9. 9

   Install new reservoir
   Position the new reservoir into the mounting location, guiding it up through the wheel well opening. Align the mounting holes with the inner fender brackets. Install the two 10mm mounting bolts finger-tight, then torque to 10-12 Nm (approximately hand-tight plus 1/4 turn). Do not overtighten as the reservoir is plastic.
10. 10

    Reconnect hose and electrical connections
    Push the washer hose quick-connect fitting onto the pump outlet until it clicks into place. Tug gently to verify it is secured. Connect the electrical connector to the pump motor until the locking tab engages with an audible click.
11. 11

    Reinstall wheel well liner
    Position the wheel well liner back into place and secure with the push pin fasteners. Insert each fastener into its hole, then press the center pin fully down until it is flush with the fastener body. Ensure all clips are fully seated.
12. 12

    Fill and test system
    Fill the reservoir with 3.5 quarts of windshield washer fluid through the filler neck. Turn the ignition to ON (do not start engine) and activate the washer function. Verify fluid sprays from both nozzles and check all connections for leaks. Inspect pump area, hose connection, and reservoir body for any signs of fluid leakage.

Reassembly

1. Ensure wheel well liner is properly secured to prevent interference with tire or suspension components
2. Return steering wheel to center position
3. Verify washer fluid cap is properly seated and tightened

Verification

• Activate windshield washers and confirm strong, even spray pattern from both nozzles
• Check for leaks at pump connection, hose fitting, and reservoir body during operation
• Verify reservoir level is at MAX line and cap is secure
• Confirm no rattles or loose components from wheel well area while driving

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