Replace the HVAC blower motor on a 2024 Tesla Model 3 Performance. The blower motor is accessed from the passenger-side footwell beneath the glovebox area, with no dashboard removal required.

Warnings

Tools required

Parts

• HVAC blower motor assembly (Model 3 specific) × 1 — Manufacturer-specified blower motor for 2024 Model 3 — verify by VIN
• Cabin air filter set (recommended replacement while area is open) × 1 — Model 3 cabin filter pair (non-HEPA)

Preparation

1. Park on level ground, place in P, engage parking brake.
2. Exit ALL doors with the key fob away from the vehicle (at least 3 meters). 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 (low-voltage lithium) battery is typically located behind the right rear seat back panel or under the rear floor — refer to architecture notes and confirm by VIN 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. Set HVAC to OFF before powering down, if possible, to ensure the blower is not commanded on at next wake.
7. Move the front passenger seat fully rearward and recline the seatback to gain footwell access.
8. Place a clean shop blanket on the passenger sill and floor mat to protect trim during the procedure.

Procedure

1. 1

   Verify blower motor failure
   Before disconnecting the 12V, briefly confirm the failure mode: no airflow at any speed, abnormal noise (ticking, grinding, squeal), or intermittent operation. Note the symptom for post-repair verification. Then power down and disconnect the 12V battery as described in preparation.
2. 2

   Remove passenger footwell lower trim
   Using a plastic trim tool, release the lower kick panel/footwell cover on the passenger side. The Model 3 uses a combination of push-pin clips and tabs — work slowly along the edge to avoid breaking clips. Set the panel aside.
   ⚠Do not yank the panel — there may be courtesy lamp or ambient light wiring routed behind it. Disconnect any harness before fully removing.
3. 3

   Remove glovebox / lower dash close-out (if required for access)
   Some 2024 Model 3 builds require partial removal of the lower dash close-out panel above the passenger footwell to fully access the blower housing. Remove fasteners as found and release clips with a trim tool. Keep all fasteners organized — they vary in length.
4. 4

   Locate the blower motor housing
   The blower motor is mounted in the lower passenger-side HVAC housing, accessible from below/behind the glovebox area. It is a cylindrical assembly with an electrical connector on the side and a circular retaining flange secured by screws. Identify the connector and the retaining screws before removing anything.
5. 5

   Disconnect the blower motor electrical connector
   Depress the locking tab and gently pull the connector straight off the blower motor. Inspect the connector pins for corrosion, melting, or discoloration — heat damage here indicates a high-current fault and the harness side should be inspected closely before installing the new motor.
   ⚠Melted/discolored pins indicate the new blower may fail prematurely if the connector is reused. Repair or replace the pigtail per Tesla service procedure if damage is found.
6. 6

   Remove blower motor retaining screws
   Remove the screws securing the blower motor to the HVAC housing. Support the blower with one hand as the last screw comes out so it does not drop. Note the orientation — the motor must go back in the same rotational position so the connector aligns with the harness.
   Torque spec

   Blower Motor Screws4 Nm (3 lb-ft)
7. 7

   Withdraw the blower motor
   Rotate and lower the blower motor assembly out of the housing. The fan cage is fragile — do not let it strike the housing or floor. Inspect the housing interior for leaves, debris, or rodent nesting, which is a common contributor to blower failure.
   ℹ️If significant debris is present, replace the cabin air filters and clean the housing with compressed air before installing the new blower.
8. 8

   Compare new and old blower motor
   Place the new blower motor next to the old one. Verify fan cage diameter, motor body length, mounting flange screw pattern, and connector style/orientation match exactly. Tesla has revised blower variants across model years — a wrong-part install will not seal correctly and can cause airflow imbalance.
9. 9

   Install new blower motor
   Lower the new blower into the housing, aligning the connector to the harness side. Ensure the seal/gasket flange is fully seated against the housing — no gap. Hand-thread all retaining screws before torquing any.
10. 10

    Torque blower motor screws
    Tighten the blower motor retaining screws in a cross/star pattern to the specified torque. Do not overtighten — these thread into plastic housing.
    ⚠Stripped blower housing threads cannot be repaired easily and may require full HVAC housing replacement. Use a calibrated torque wrench.
    Torque spec

    Blower Motor Screws4 Nm (3 lb-ft)
11. 11

    Reconnect electrical connector
    Plug the harness connector firmly onto the new blower motor until the lock tab clicks. Tug-test to confirm engagement.

Reassembly

1. Reinstall the lower dash close-out panel (if removed), reconnecting any wiring that was disconnected.
2. Reinstall the passenger footwell lower trim, ensuring all clips fully seat — listen for the click on each.
3. If the cabin air filters were also being serviced, install fresh filters now per Tesla's 2-year cabin filter interval.
4. Reconnect the 12V low-voltage battery. Torque the battery terminal bolts to spec.
5. Close all doors and allow the vehicle to wake fully (touchscreen boots, HVAC re-initializes — may take 30–60 seconds).

Verification

• Power on the vehicle (brake pedal pressed) and turn the HVAC on via the touchscreen.
• Cycle blower fan speed from minimum to maximum. Confirm smooth ramp-up with no ticking, squeal, grinding, or rattle.
• Confirm airflow at all vent modes (face, feet, defrost, mixed) — verifies the blower is moving rated CFM.
• Run Auto mode for several minutes; confirm no HVAC fault alerts on the touchscreen.
• Check for any new MCU alerts under Service / Notifications.
• Reminder: Tesla recommends cabin air filter replacement every 2 years and brake fluid service every 2 years — note this in the owner's service log if those intervals are also approaching.
• Test drive briefly to confirm no airflow whistle or vibration at highway speed (housing not sealing would manifest as wind noise from dash).

More procedures for this vehicle