This procedure covers the removal and replacement of the windshield washer fluid reservoir on a 2019-2024 Toyota RAV4 with the 2.5L I4 gas engine and front-wheel drive configuration.

Warnings

Tools required

Parts

• Windshield washer reservoir assembly × 1 — 85315-42140 or equivalent
• Washer pump grommet (if damaged) × 1 — Use OEM specification

Fluids

• Windshield Washer Fluid — 3.5 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn off ignition and remove key
3. Open hood and secure with prop rod
4. Allow engine to cool if recently operated
5. Place drain pan beneath left front area of engine compartment to catch washer fluid

Procedure

1. 1

   Drain washer fluid reservoir
   If the reservoir still contains fluid and is not cracked, use the washer switch to spray out as much fluid as possible. Alternatively, disconnect the lower hose at the pump and allow fluid to drain into the drain pan. If the reservoir is cracked or broken, carefully drain remaining fluid into the pan.
2. 2

   Disconnect electrical connector
   Locate the washer pump electrical connector on the side of the reservoir. Press the locking tab and pull the connector straight off the pump. Set the connector aside to prevent dirt contamination.
3. 3

   Disconnect washer hoses
   Identify the outlet hose(s) connected to the washer pump at the bottom of the reservoir. Squeeze the hose clamp or press the release tabs (depending on design) and pull the hose off the pump nipple. Note the routing for reinstallation. Use shop towels to catch any residual fluid.
4. 4

   Remove fender liner fasteners (if necessary)
   On some configurations, partial removal of the left front fender liner provides better access. Remove 2-3 plastic push clips from the upper section of the fender liner near the reservoir using a panel removal tool. Pull the liner back slightly to access the lower reservoir mounting.
5. 5

   Remove reservoir mounting bolts
   Locate the reservoir mounting bolts securing it to the body/fender well. Typically there are 2-3 bolts: one at the top bracket and one or two at the lower mounting tabs. Use a 10mm socket with extension to remove these bolts completely. Keep bolts in a clean location for reinstallation.
   Torque spec

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

   Remove washer reservoir
   Carefully lift the reservoir upward and out of the engine compartment. The reservoir may need to be tilted or rotated to clear surrounding components. Watch for any remaining hose connections or clips. Remove the reservoir and inspect the mounting area for debris or damage.
7. 7

   Transfer washer pump (if reusing)
   If the new reservoir does not include a washer pump, remove the pump from the old reservoir. Twist the pump counterclockwise approximately 1/4 turn and pull it out of the rubber grommet. Inspect the grommet for tears or deterioration. Install the pump into the new reservoir by inserting it into the grommet and twisting clockwise until it locks. Ensure a proper seal to prevent leaks.
8. 8

   Install new reservoir
   Position the new reservoir into the mounting location, aligning the mounting tabs with the body mounting points. Ensure the reservoir sits flush and is not pinched against any wiring or hoses. Start all mounting bolts by hand before tightening.
9. 9

   Torque mounting bolts
   Torque the reservoir mounting bolts to specification using a torque wrench. Verify the reservoir is secure and does not move when pressure is applied.
   Torque spec

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

    Reconnect hoses and electrical connector
    Reconnect the washer hose(s) to the pump outlet(s). Ensure hose clamps are properly seated or push-on connectors click into place. Reconnect the electrical connector to the washer pump, ensuring the locking tab engages fully. Gently tug on connections to verify they are secure.
11. 11

    Reinstall fender liner (if removed)
    If the fender liner was pulled back, reposition it and reinstall the plastic push clips. Ensure all clips are fully seated and the liner is properly aligned.
12. 12

    Fill reservoir with washer fluid
    Pour approximately 3.5 quarts of windshield washer fluid into the reservoir filler neck. Fill to the MAX line indicated on the reservoir. Do not overfill.

Reassembly

1. Verify all hose connections are secure and properly routed
2. Ensure electrical connector is fully seated with locking tab engaged
3. Confirm all mounting bolts are torqued to specification
4. Wipe down any washer fluid spills from engine compartment components

Verification

• Turn ignition to ON position without starting engine
• Operate windshield washer switch and verify fluid sprays onto windshield from both nozzles
• Check for leaks at pump connections, hose connections, and reservoir body while spraying
• Verify washer pump operates smoothly without unusual noise
• Inspect reservoir mounting area and ground below vehicle for any fluid drips after test
• Top off washer fluid if level dropped during testing
• Close hood and verify no tools or parts were left in engine compartment

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