Replace the front wiper motor on a 2012 Tesla Roadster. The Roadster is built on the Lotus Elise platform, so the wiper assembly is largely Lotus-derived rather than Tesla-specific — sourcing parts may require Lotus channels.

Warnings

Tools required

Parts

• Front wiper motor assembly (Roadster/Lotus Elise-pattern) × 1 — Manufacturer-specified Roadster wiper motor — verify with Tesla Roadster service channel or Lotus equivalent before ordering
• Wiper arm spindle nut (replace if corroded/damaged) × 1 — OEM specification
• Cowl/scuttle fasteners and clips (replace any broken on removal) × 1 — OEM specification

Preparation

1. Park on level ground, place in P (or in gear if equipped with the Roadster manual transaxle), and 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 the Roadster the 12V auxiliary battery is located in the front trunk/forward compartment area — refer to the Roadster owner documentation to confirm before disconnecting. Loosen terminal bolts to spec.
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. Turn the wiper switch ON briefly before disconnecting the 12V to allow the wipers to return to the park position, then switch OFF.
7. Mark the resting (park) position of each wiper arm on the windshield with low-tack masking tape.
8. Open the front clamshell/frunk to access the cowl/scuttle area where the wiper motor and linkage reside.

Procedure

1. 1

   Remove wiper arms
   Lift the plastic cap at the base of each wiper arm to expose the spindle nut. Remove the spindle nut. Carefully rock the arm off the splined shaft, or use a wiper arm puller to avoid damaging the shaft or the painted cowl. Set arms aside in their original left/right orientation.
   ⚠Do not pry against the painted composite cowl — use a puller if the arm is seized.
2. 2

   Remove cowl / scuttle trim
   Release the plastic clips and any visible fasteners securing the cowl/scuttle panel below the windshield. Use a plastic trim tool. Lift the cowl and disconnect the washer hose from the jet(s) if it must be fully removed. Note clip positions for reassembly.
   ⚠Roadster cowl clips are brittle with age — have replacements on hand.
3. 3

   Confirm 12V is disconnected and locate the wiper motor assembly
   Visually verify the 12V negative terminal is still disconnected. Locate the wiper motor and linkage carrier behind the cowl. On the Roadster this assembly is the Lotus-pattern single-motor unit driving both arms via a linkage frame.
4. 4

   Disconnect wiper motor electrical connector
   Release the locking tab on the wiper motor's electrical connector and unplug it. Inspect the connector for corrosion. If a retaining screw is present on the connector body, remove it carefully.
   Torque spec

   Connector Screws4 Nm (3 lb-ft)
5. 5

   Detach motor crank arm from linkage (if servicing motor only)
   If replacing only the motor and reusing the linkage frame, mark the position of the motor crank arm relative to the linkage, then remove the crank-arm retaining nut and separate the linkage ball joint from the crank. If replacing the entire motor + linkage carrier as an assembly, skip this step.
   ℹ️The crank arm position sets the wiper park sweep — mark it precisely.
6. 6

   Remove the wiper motor / linkage assembly mounting bolts
   Remove the bolts securing the wiper motor (or motor + linkage carrier) to the body/bulkhead. Support the assembly as the last bolt is removed so it does not fall and damage paint. Withdraw the assembly through the cowl opening.
   Torque spec

   Bracket Bolts20 Nm (15 lb-ft)
7. 7

   Transfer motor to new unit (if applicable) and inspect
   If the replacement is motor-only, transfer the crank arm to the new motor in the marked orientation. Confirm the new motor's part number matches the original Roadster/Lotus-pattern unit. Inspect the linkage bushings for play — replace the entire carrier if worn.
   ⚠Do not energize the new motor on the bench unless you can confirm the park position — running it through a cycle will reset park geometry.
8. 8

   Install new wiper motor / assembly
   Position the new motor (or motor + linkage carrier) into the cowl area. Start all mounting bolts by hand to avoid cross-threading into the chassis. Torque the mounting bolts evenly.
   Torque spec

   Bracket Bolts20 Nm (15 lb-ft)
9. 9

   Reconnect linkage and electrical connector
   If the linkage was separated, reattach the ball joint to the crank arm in the marked orientation and torque the crank-arm nut to OEM specification — refer to Tesla Service Manual / Lotus Elise service data for this fastener. Reconnect the electrical connector until the lock tab clicks. Reinstall any connector retaining screw.
   Torque spec

   Connector Screws4 Nm (3 lb-ft)
10. 10

    Verify park position before reinstalling arms
    Temporarily reconnect the 12V battery (torque terminal bolts to spec). Briefly turn the wiper switch ON, then OFF, and allow the motor to return to its park position. Disconnect the 12V again before continuing.
    ⚠Keep hands clear of the linkage during the test cycle — it pinches.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)
11. 11

    Reinstall wiper arms to marked park position
    Place each wiper arm onto its splined shaft so the blade aligns with the masking tape marks made during preparation. Install the spindle nuts and torque to OEM specification — refer to Tesla Service Manual / Lotus Elise service data. Close the plastic caps.
12. 12

    Reinstall cowl / scuttle trim
    Reconnect the washer hose to the jets if it was disconnected. Seat the cowl panel and press all clips home. Replace any clips that broke during removal.

Reassembly

1. Reconnect the 12V battery negative terminal and torque to spec.
2. Confirm wiper arms are seated and tight; nuts must not back off in service.
3. Top up windshield washer fluid if any was lost during cowl removal (Roadster reservoir capacity ~3.5 qt).
4. Close the front clamshell/frunk.

Verification

• Cycle the wipers through low, high, and intermittent speeds — both arms must sweep smoothly with no binding or chatter.
• Confirm both blades return cleanly to the marked park position and do not contact the A-pillars or sweep off the top of the glass.
• Operate the washer function and verify both jets spray onto the glass and the wipers wipe the fluid without streaking.
• Check for any wiper-related fault lamps or warnings on the Roadster's instrument cluster (VDS).
• Inspect the cowl panel fitment — no gaps, no loose clips.
• Note: this job is not on a scheduled Tesla service interval, but while the cowl is open it is a good opportunity to inspect the cabin air intake area and washer hose condition.

More procedures for this vehicle