Replace the front windshield wiper motor and linkage assembly on a 2024 Tesla Model 3. The wiper motor and linkage are serviced as a single assembly; access requires removing the cowl panel below the windshield.

Warnings

Tools required

Parts

• Front wiper motor and linkage assembly (Model 3) × 1 — Tesla OEM Model 3 front wiper motor/linkage assembly — verify by VIN
• Cowl panel retainer clips (replace any damaged on removal) × 1 — Manufacturer-specified cowl clips

Preparation

1. Park on level ground, place in P, engage the parking brake.
2. Exit ALL doors with the key fob away from the vehicle. Wait at least 2 minutes for HV systems to fully de-energize, even on this non-HV job.
3. Disconnect the 12V low-voltage battery. On 2024 Model 3, the 12V (lithium) battery may be located behind the right rear seat back panel or under the floor depending on build — refer to architecture notes and confirm before disconnecting.
4. DO NOT touch, cut, or pierce ANY orange cable — these are high-voltage and lethal.
5. If at any point you encounter an orange cable, an HV component, or are unsure if a system is de-energized: STOP and consult a Tesla-certified technician.
6. Open the frunk and front doors for access to the cowl area.
7. Place wipers in the 'service mode' position via the touchscreen BEFORE disconnecting 12V if possible (Controls → Service → Wiper Service Mode), so the arms move clear of the cowl panel.
8. Have the replacement wiper motor/linkage assembly on hand and inspect for shipping damage.

Procedure

1. 1

   Mark wiper arm rest position
   With the wipers in service position (or natural park position), use a paint marker or masking tape to mark the exact rest position of each wiper blade on the windshield glass. This is critical for re-indexing — Tesla wiper arms have splined shafts and can be installed in multiple orientations.
2. 2

   Remove wiper arms
   Lift the protective cap at the base of each wiper arm. Loosen (do not fully remove yet) the wiper arm retaining nut. Lift the arm slightly off the glass, then use a wiper arm puller to break the arm free from the splined shaft. Remove the nut and lift the arm off. Repeat for the second arm. Avoid prying with a screwdriver — this can damage the splined shaft or chip the glass.
   ⚠Wiper arms are spring-loaded. Control the arm as it releases from the shaft to avoid it snapping back against the glass.
3. 3

   Remove cowl weatherstrip and panel
   Carefully peel the rubber weatherstrip from the rear edge of the hood opening. Using a plastic trim tool, release the cowl panel clips along its length. The cowl is a multi-piece plastic assembly on Model 3 — work from one end to the other. Lift the cowl panel up and forward to disengage the front lip from under the windshield. Set aside on a clean surface.
   ⚠Do not pry against the painted aluminum hood edge. Use only plastic tools and work slowly.
4. 4

   Disconnect wiper motor electrical connector
   Locate the electrical connector on the wiper motor body. Release the locking tab and disconnect the connector. Inspect the connector pins for corrosion or water intrusion — the cowl area is exposed to weather and connector failure is a known issue.
5. 5

   Remove wiper motor/linkage assembly mounting bolts
   The wiper motor and linkage are a single assembly bolted to the cowl crossmember at three points (one near the motor, one at each pivot shaft). Note any ground strap routed to the assembly — disconnect it if present. Remove the three mounting bolts/nuts using the appropriate metric socket. Support the assembly as the last fastener is removed.
   Torque spec

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

   Remove the assembly from the vehicle
   Maneuver the wiper motor/linkage assembly out of the cowl tray. The pivot shafts pass through grommets in the body — pull straight up to clear them without damaging the seals. Inspect the body grommets and replace if torn.
7. 7

   Transfer hardware (if required) and prepare new assembly
   Compare the new assembly to the old one. Transfer any pivot shaft seals, spacers, or ground strap hardware as required. Do not attempt to disassemble the linkage from the motor — Tesla services this as a complete unit.
8. 8

   Install new wiper motor/linkage assembly
   Lower the new assembly into the cowl tray, guiding the pivot shafts through the body grommets. Hand-thread all three mounting fasteners before final torque. Reconnect any ground strap. Torque the mounting bolts to the manufacturer-specified value.
   ⚠Ensure ground strap contact surfaces are clean and corrosion-free before fastening. Poor ground causes intermittent wiper operation and DTCs.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
9. 9

   Reconnect electrical connector
   Reconnect the wiper motor electrical connector and confirm the locking tab is fully seated. Route the harness clear of any pinch points or moving linkage.
10. 10

    Reinstall cowl panel and weatherstrip
    Position the cowl panel front lip under the windshield edge first, then press down along its length to seat all clips. Reinstall the hood-edge weatherstrip, ensuring it is fully seated to prevent water intrusion into the HVAC intake.
11. 11

    Cycle motor to park position before installing arms
    Temporarily reconnect the 12V battery. Turn the vehicle on (driver in seat, brake pressed) and briefly cycle the wipers, then turn off so the motor returns to its park position. Turn the vehicle off and disconnect the 12V battery again before installing arms — this prevents crush injury if the wipers self-cycle.
    ⚠Keep fingers clear of the linkage during the brief power-on cycle.
12. 12

    Install wiper arms at marked rest position
    Place each wiper arm onto its splined shaft so the blade aligns with the rest position mark made in Step 1. Install the retaining nut and torque to OEM specification — refer to Tesla Service Manual. Press the protective cap into place.
    ℹ️If the blades sweep too high (hitting A-pillar trim) or too low (off the glass) during testing, remove and re-index by one spline tooth.

Reassembly

1. Confirm both wiper arms are at the marked park position with caps installed.
2. Reconnect the 12V battery, torquing the terminal bolts to the verified spec. Do not overtighten.
3. Close the frunk and verify the cowl/weatherstrip is seated flush.
4. Allow the vehicle to fully wake (touchscreen boot, ~30-60 seconds) before testing wipers.

Verification

• Test wipers at all speed settings (intermittent, low, high) and confirm smooth operation across the full sweep.
• Activate windshield washers and verify the wipers cycle and return to the correct park position with no contact against the A-pillar or cowl trim.
• Inspect blades at park — they should rest at the position marked in Step 1 with no chatter.
• Check the touchscreen for any wiper-related alerts or DTCs after a full power cycle.
• Verify no water intrusion into the cowl/HVAC intake by spraying the windshield base with a hose and checking the cabin floor and frunk drain area afterward.
• Note: While in this area, check cabin air filter age — Tesla recommends replacement every 2 years and access is similar.

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