Replace a single front brake rotor on the 2024 Tesla Roadster (Tri Motor AWD). Note: this vehicle is a low-volume, low-documentation platform — confirm all fastener specifications against the official Tesla Service Manual before final torque.

Warnings

Tools required

Parts

• Front brake rotor (manufacturer-specified for Roadster Tri Motor) × 1 — Refer to Tesla parts catalog — verify left/right if directional/vented vane orientation applies
• Rotor set screw (if reused screw is damaged) × 1 — OEM specification

Preparation

1. Park on level ground, place in P, engage parking brake.
2. Exit ALL doors with 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 (or 16V/48V on applicable models) low-voltage battery. See architecture notes — the Roadster's low-voltage battery location should be confirmed in the Tesla Service Manual 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. Allow brakes to cool fully — rotors and calipers can exceed 200°C after spirited driving.
7. Loosen (do not remove) the front wheel lug nuts while the vehicle is on the ground.
8. Raise the front of the vehicle at the manufacturer-specified lift points and support on jack stands. Confirm stability before working underneath.
9. Remove the front wheel and set aside on a soft surface to protect finish.

Procedure

1. 1

   Inspect assembly before disassembly
   Visually inspect the caliper, pads, hose, and rotor. Photograph fastener locations and any shims/clips. Note pad wear — if pads are at or below minimum thickness, plan to replace them along with the rotor.
2. 2

   Relieve caliper piston pressure
   If reusing pads, gently retract the caliper pistons using a piston-spreader tool to make room for the new rotor thickness. Monitor the brake fluid reservoir — fluid level will rise; siphon off excess if near full to prevent overflow.
   ⚠Do not force pistons back without opening the bleeder if the system has ABS/ESC pressure trapped — back-feeding contaminated fluid into the ABS module can cause faults.
3. 3

   Remove caliper slide pin bolts (if floating caliper) OR caliper bolts (if fixed caliper)
   The Roadster front brake caliper configuration should be confirmed against the service manual. For a floating caliper, remove the two slide pin bolts. For a fixed/monoblock caliper, remove the two caliper-to-knuckle bolts. Support the caliper — never let it hang by the brake hose.
   ⚠Do not disconnect the brake hose unless absolutely necessary. If the hose is removed, a full bleed will be required.
   Torque spec

   Caliper Slide Pin Bolts35 Nm (26 lb-ft)

   Caliper Bolts88 Nm (65 lb-ft)
4. 4

   Suspend the caliper
   Hang the caliper from a suspension component using a caliper hanger or mechanic's wire. Ensure no tension is placed on the brake hose or any wheel speed sensor / pad wear sensor wiring.
5. 5

   Remove caliper bracket (if separate from caliper)
   If the caliper bracket is a separate component bolted to the steering knuckle, remove the two caliper bracket bolts. Set the bracket aside on a clean surface. Inspect abutment clips for wear; replace if deformed.
   Torque spec

   Bracket Bolts102 Nm (75 lb-ft)
6. 6

   Remove rotor set screw (if equipped)
   If the rotor is retained by a small Torx or hex set screw at the hub face, remove it. These screws are often seized — use the correct bit size and apply impact if needed to avoid stripping.
   ℹ️If the set screw strips or breaks, replace with a new one rather than reusing damaged hardware.
   Torque spec

   Rotor Set Screws7 Nm (5 lb-ft)
7. 7

   Remove the rotor
   Pull the rotor straight off the hub. If seized due to corrosion at the hub-to-rotor interface, thread two bolts into the rotor's threaded jack-off holes (if present) and tighten evenly to break it free. Otherwise, strike the rotor hat (NOT the friction surface, NOT any aluminum component) with a soft dead-blow hammer.
   ⚠Do not strike aluminum knuckle or hub components with a steel hammer — damage may not be visible but can cause failure.
8. 8

   Clean hub mating surface
   Wire-brush the hub face to remove all rust and scale. A dirty hub face is the #1 cause of new-rotor lateral runout and brake pulsation. Apply a thin film of anti-seize to the hub center bore only — keep it off the wheel mounting studs and the rotor friction surface.
9. 9

   Install the new rotor
   Wipe both friction surfaces of the new rotor with brake cleaner to remove shipping preservative oil. Slide the rotor onto the hub flush against the cleaned mating surface. Install the rotor set screw if equipped.
   Torque spec

   Rotor Set Screws7 Nm (5 lb-ft)
10. 10

    Reinstall caliper bracket
    If removed, reinstall the caliper bracket onto the steering knuckle. Apply threadlocker to the bolt threads as recommended. Torque to specification.
    Torque spec

    Bracket Bolts102 Nm (75 lb-ft)
11. 11

    Reinstall caliper
    Position the caliper over the new rotor with pads in place. For slide-pin bolts, apply silicone brake grease to the slide pins per spec. For caliper-to-knuckle bolts, apply threadlocker. Torque to the appropriate specification for the configuration on this vehicle.
    Torque spec

    Caliper Slide Pin Bolts35 Nm (26 lb-ft)

    Caliper Bolts88 Nm (65 lb-ft)
12. 12

    Pump brake pedal to seat pads
    Before lowering the vehicle, slowly pump the brake pedal multiple times until firm. This re-seats the caliper pistons against the pads. Confirm reservoir fluid level is correct — top up with DOT 3 if low.
    ⚠️Do not drive the vehicle without first confirming a firm brake pedal. A spongy pedal indicates air or improper piston seating.

Reassembly

1. Reinstall the front wheel and hand-tighten lug nuts.
2. Lower the vehicle to the ground.
3. Torque wheel lug nuts in a star pattern to specification.
4. Reconnect the low-voltage battery.
5. Top off brake fluid reservoir with DOT 3 to the MAX line if needed.
6. Wake the vehicle and allow all systems to fully boot before test driving.

Verification

• With the vehicle stationary and running, press the brake pedal firmly — pedal must be high and firm with no sponginess.
• Check for any brake-related alerts on the center display (ABS, brake system, traction control). Address any DTCs before driving.
• Perform a low-speed (10–15 mph) brake test in a safe area before normal driving — verify straight stops, no pulling, no grinding, no pulsation.
• Bed in the new rotor/pad combination per the pad manufacturer's procedure (typically 6–10 moderate stops from ~35 mph, then a cool-down).
• Recheck wheel lug torque after the first 50 miles.
• Reminder: Tesla recommends a full brake fluid flush every 2 years regardless of mileage. If due, schedule that service now.
• Tire rotation interval is every 6,250 miles on Teslas — note odometer for next rotation while wheels are off.

More procedures for this vehicle