Complete brake fluid flush and bleed on all four corners of a 2024 Model Y Performance using DOT 3 brake fluid. This is part of Tesla's recommended 2-year brake fluid service interval.

Warnings

Tools required

Parts

• Brake bleeder cap/dust cover (replace if damaged) × 4 — OEM caliper bleeder dust cap

Fluids

• DOT 3 Brake Fluid (sealed, fresh container) — 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. On the 2024 Model Y the LV battery is located beneath/behind the rear seat area — refer to architecture notes and the service manual for exact access.
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. Chock the wheels before lifting. Loosen all four lug nuts slightly while wheels are on the ground.
7. Lift the vehicle at the manufacturer-specified jack pads (the Model Y has designated lift points along the rocker — use a hockey puck or Tesla-approved jack pad adapter to avoid damaging the battery pack edge).
8. Support the vehicle on four jack stands rated for the vehicle's weight (Performance Y curb weight ~4,400 lb).
9. Remove all four wheels.
10. Open a fresh, sealed container of DOT 3 brake fluid. Do NOT use DOT 5 (silicone). DOT 4 is acceptable only if Tesla service documentation for this VIN explicitly permits it — when in doubt, use DOT 3.

Procedure

1. 1

   Inspect and prepare the master cylinder reservoir
   Locate the brake fluid reservoir under the front trunk (frunk) area on the driver side firewall region. Wipe the cap and surrounding area clean to prevent contamination. Use a turkey baster or fluid syringe to remove as much old (typically dark) fluid as possible from the reservoir, then refill with fresh DOT 3 to the MAX line. Do not let the reservoir level drop below MIN at any point during bleeding.
   ⚠Brake fluid splashed on Model Y paint or aluminum hood will etch the finish quickly. Drape a fender cover and have water ready.
2. 2

   Connect pressure bleeder (recommended) or prepare for two-person bleed
   If using a pressure bleeder, attach it to the reservoir per the bleeder manufacturer's instructions and pressurize to 10-15 psi (or per tool spec). If performing a two-person manual bleed, station an assistant in the driver's seat to operate the brake pedal on command. Note: with the 12V disconnected, the iBooster will not provide assist — pedal feel will be firm and travel short. This is normal for manual bleeding.
3. 3

   Begin bleeding sequence — verify order with service manual
   The bleeding sequence is critical and must be verified against the current Tesla Service Manual for this VIN. Traditional 'farthest-from-master-cylinder-first' practice is the typical approach (commonly RR, LR, RF, LF), but Tesla's documented sequence for the Model Y iBooster system should always be confirmed before proceeding. Begin at the corner specified by the manual.
   ⚠Incorrect bleed sequence on iBooster-equipped vehicles can leave trapped air in the hydraulic block.
4. 4

   Bleed first corner
   Remove the dust cap from the caliper bleeder screw. Attach a clear hose to the bleeder, with the other end submerged in a catch bottle containing a small amount of fresh fluid (prevents air re-entry). Crack the bleeder screw open about a quarter turn. With pressure bleeder: allow fluid to flow until clean, bubble-free fluid emerges (typically 250-500 ml per corner). With manual bleed: assistant slowly depresses pedal, you close bleeder before pedal reaches floor, assistant releases — repeat until clear, bubble-free fluid emerges. Close the bleeder.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
5. 5

   Torque first bleeder and check reservoir
   Torque the bleeder screw to specification. Do NOT overtighten — these are easy to snap or distort, leading to chronic air leaks. Reinstall the dust cap. Check master cylinder reservoir level and top up to MAX with fresh DOT 3.
   ⚠Snapped bleeder screws on Tesla calipers typically require caliper replacement — go gently with the torque wrench.
   Torque spec

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

   Bleed second corner
   Move to the next corner per the service manual sequence. Repeat the bleeding procedure as in step 4 until clean, clear, bubble-free fluid emerges. Close bleeder.
   Torque spec

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

   Bleed third corner
   Move to the third corner per the service manual sequence. Repeat the bleeding procedure. Top up the reservoir between corners — never let it run dry.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
8. 8

   Bleed final corner
   Bleed the final corner per the service manual sequence. Continue until fluid runs clean and bubble-free. Close and torque the bleeder, reinstall the dust cap.
   Torque spec

   Bleeder Screw10 Nm (7 lb-ft)
9. 9

   Final reservoir adjustment and pressure release
   If using a pressure bleeder, depressurize and disconnect it per the tool's instructions. Set the master cylinder reservoir level precisely to the MAX line — not above (overfilling can cause overflow when pads wear and pistons extend). Reinstall the reservoir cap securely.
10. 10

    Inspect each caliper and corner
    With wheels still off, visually inspect each caliper for fluid weeping at the bleeder and at the banjo/hardline connection. Wipe each caliper down with clean water, then dry. Verify dust caps are seated on all four bleeders.

Reassembly

1. Reinstall all four wheels. Hand-thread lug nuts to prevent cross-threading.
2. Snug lug nuts in a star pattern, then lower the vehicle to the ground.
3. Final-torque lug nuts in a star pattern to specification.
4. Reconnect the 12V low-voltage battery.
5. Close the frunk and any access panels.

Verification

• With the vehicle still stationary and the brake pedal cool, press the pedal firmly several times. Pedal should be firm and high — no sponginess or sinking.
• Power on the vehicle (foot on brake). The iBooster will self-test; listen for any abnormal pump cycling. Check the touchscreen for any brake-related warnings or ABS/Stability Control fault messages.
• With foot on brake, shift into D and release brake — vehicle should hold creep normally and release cleanly.
• Perform a low-speed road test in a safe, empty area: at 5-10 mph, apply brakes firmly. Pedal should remain firm. Then test at 25-30 mph with a moderate stop. There should be no pull, no ABS chatter (unless surface triggers it legitimately), and no warning lights.
• Re-check the master cylinder level after the test drive and top up to MAX if needed.
• Re-torque lug nuts after the first 50-100 miles — Tesla wheels are known to require this verification check.
• Log this service: Tesla recommends brake fluid replacement every 2 years regardless of mileage. Set a reminder for the next interval.
• Note: while the wheels are off, this is also a good opportunity to rotate tires (Tesla recommends every 6,250 mi on Model Y due to high tire wear from instant torque and curb weight).

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