Complete brake fluid flush and bleed on all four corners of a 2024 Model X Plaid. Tesla recommends brake fluid replacement every 2 years regardless of mileage; this procedure replaces the old fluid with fresh DOT 3 (Tesla-spec) at all four calipers.

Warnings

Tools required

Parts

• DOT 3 brake fluid (sealed, unopened container) × 2 — Tesla-spec DOT 3 — refer to Service Manual; do NOT substitute DOT 5 silicone

Fluids

• DOT 3 Brake Fluid (Tesla specification) — 1 qt

Preparation

1. Park on level ground, place in P, 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, located in the frunk on Model X (similar position to Model S). Follow the labeled negative-first disconnect sequence.
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. Before disconnecting 12V, enable 'Jack Mode' on the touchscreen (Service > Jack Mode) so the air suspension does not try to re-level while raised.
7. Confirm Falcon Wing rear doors are CLOSED and will remain closed for the duration of the procedure.
8. Have the Tesla Service Manual open to the brake bleed sequence for 2024 Model X — bleed order should be verified against the manual.
9. Loosen (but do not remove) all four wheel lug nuts before raising the vehicle.
10. Raise vehicle using Tesla-approved jack pad adapters at the factory lift points; support on jack stands rated for the vehicle's weight.

Procedure

1. 1

   Remove all four wheels
   With the vehicle safely supported on jack stands, remove the lug nuts and pull all four wheels. Set wheels aside on a clean surface to avoid damaging the finish. This provides full access to all four calipers.
2. 2

   Inspect calipers and bleeder screws
   Visually inspect each caliper for leaks, damaged dust boots, and corroded bleeder screws. Clean each bleeder nipple with a wire brush and wipe clean. Apply penetrating oil to any seized bleeders and allow to soak before attempting to open. Do NOT round off the bleeder — if seized, stop and replace the bleeder screw before proceeding.
   ⚠A snapped bleeder screw will require caliper removal or replacement — proceed gently.
3. 3

   Evacuate old fluid from master cylinder reservoir
   Open the frunk and locate the brake fluid reservoir on the master cylinder/iBooster assembly. Use a clean fluid extractor or turkey baster to remove as much old, dark fluid as possible from the reservoir without disturbing the screen at the bottom. Refill with fresh, sealed DOT 3 fluid to the MAX line. This minimizes the volume of contaminated fluid that must be pushed through the lines.
   ⚠Never let the reservoir level drop below MIN during bleeding. Air introduced to the iBooster may require Tesla Toolbox to fully purge.
4. 4

   Connect pressure bleeder (or prepare two-person setup)
   If using a pressure bleeder, attach the appropriate cap adapter to the master cylinder reservoir and pressurize to the bleeder manufacturer's specification (typically 10–15 psi). If using the two-person manual method, station an assistant in the driver's seat to pump and hold the brake pedal on command. Verify no leaks at the reservoir cap.
5. 5

   Bleed sequence — verify with Service Manual
   Bleed each caliper in the order specified by the Tesla Service Manual for 2024 Model X (typically furthest from master cylinder to closest, but VERIFY before proceeding). At each corner: attach a clear hose to the bleeder nipple with the other end submerged in catch fluid in a clear bottle. Open the bleeder, allow old fluid to flow until clean, fresh fluid runs through with no air bubbles, then close the bleeder. Refill the reservoir frequently — do not let it run dry.
   ⚠Bleed sequence must be confirmed against the Tesla Service Manual — incorrect order can leave air trapped in the system.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
6. 6

   Torque bleeder screws
   After each caliper is fully bled and the bleeder screw is closed, torque the bleeder screw to specification. Do not overtighten — the bleeder is small-diameter and easily snapped.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
7. 7

   Final reservoir top-off
   Once all four corners are bled, depressurize and remove the pressure bleeder (or finish the manual bleed). Top off the master cylinder reservoir to the MAX line with fresh DOT 3 fluid. Reinstall the reservoir cap securely.
8. 8

   Pedal feel check (vehicle still raised)
   With the 12V still disconnected, manually check the brake pedal travel and firmness by pressing the pedal. It should feel firm and high. A spongy pedal indicates trapped air — re-bleed the affected corner(s). Note: with 12V disconnected the iBooster will not assist; you are checking hydraulic feel only.

Reassembly

1. Reinstall all four wheels. Hand-thread lug nuts to avoid cross-threading.
2. Snug lug nuts in a star pattern, then lower the vehicle to the ground.
3. Final-torque lug nuts to specification in a star pattern.
4. Reconnect the 12V battery in the frunk (positive first, then negative — opposite of disconnect).
5. Close the frunk.
6. Power on the vehicle and exit 'Jack Mode' via the touchscreen. Allow the air suspension to re-level.

Verification

• With the vehicle powered on and brake-by-wire/iBooster active, press the brake pedal firmly several times — pedal must be firm with no sponginess and consistent travel.
• Check the touchscreen for any brake-related alerts (ABS, traction control, iBooster). If any warnings appear, the system likely has trapped air in the ABS module and may require a Tesla Toolbox-assisted bleed.
• Inspect each caliper bleeder for seepage after a few brake applications.
• Verify reservoir is at MAX line with cap secured.
• Perform a low-speed road test in a safe area: confirm the vehicle stops straight, ABS does not falsely activate, and regenerative braking transitions smoothly to friction braking.
• Recheck reservoir level after the test drive and top off if needed.
• Record the service date — Tesla recommends brake fluid replacement every 2 years regardless of mileage. Set a reminder for the next interval.

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