How to Bleed and Replace Brake Fluid on a 2021 Can-Am Renegade 570 X MR

Shop parts for a 2021 Can-Am Renegade 570 X MR ATV.

This MotoSport proprietary guide walks you through safely draining, replacing, and bleeding the brake fluid on the 2021 Can-Am Renegade 570 X MR. Follow these steps and safety notes exactly to protect your ATV, braking performance, and warranty-sensitive components.

What you will need

  • DOT 4 brake fluid (use fresh, unopened bottle)
  • Clear tubing that fits bleeder nipples
  • Brake bleeder wrench or 8 mm flare wrench (verify bleeder size visually)
  • Bleeder bottle or catch container
  • Turkey baster or fluid syringe
  • Clean rags and isopropyl alcohol for cleanup
  • Latex or nitrile gloves and eye protection
  • Battery maintainer or helper for pedal/pump action if using manual bleed
  • Torque wrench for reassembly where applicable

Notes specific to the 2021 Can-Am Renegade 570 X MR

  • The Renegade 570 X MR typically uses DOT 4 brake fluid. Do not mix with DOT 3 or DOT 5 silicone fluid. Use only fresh DOT 4 per MotoSport recommendation for this model.
  • This model has separate front and rear master cylinders. Bleed each circuit separately. Treat the front system independently from the rear system to avoid contamination.
  • The brake reservoirs are plastic and located on or near the handlebar (front) and rear brake master cylinder (rear). Clean around caps before opening to prevent dirt ingress.
  • ABS is not present on this model year X MR; however the hydraulic lines and calipers are OEM-sensitive. Avoid overfilling reservoirs and keep fluid off painted plastics and rubber parts.
  • Brake line routing and clip locations are OEM; inspect lines, banjos, and clips for wear or chafing while servicing.

Safety first

  • Work on a level surface with the engine off and ignition in ON position only if instructed for pedal/lever actuation; otherwise leave ignition OFF. Block wheels and secure the ATV on stands rated for four-wheel support.
  • Brake fluid damages paint and plastics. Cover surfaces and wipe spills immediately with isopropyl alcohol.
  • Dispose of used fluid according to local hazardous waste regulations.

Step-by-step: Replace fluid and bleed the brakes

1. Prepare the machine

  • Park level and secure. Remove seat or panels only as needed to access reservoirs and bleed nipples safely.
  • Clean reservoir caps and surrounding area to keep contaminants out.
  • Remove master cylinder caps slowly to relieve pressure. Do not let dirt enter reservoirs.

2. Remove old fluid from reservoirs

  • Use a turkey baster or fluid syringe to extract as much old fluid from each reservoir as possible. This minimizes contamination when you top up with fresh fluid.
  • Wipe out residue with a lint-free rag and isopropyl alcohol if needed. Do not allow rags to drop into the reservoir.

3. Top up with fresh DOT 4 fluid

  • Fill each reservoir to the maximum mark with fresh DOT 4. Keep the reservoir cap loosely in place to reduce air exposure while you bleed.

4. Identify bleed order and remote first/last approach

  • Because front and rear are separate circuits, you will perform two independent bleed sequences. For each circuit, bleed the caliper farthest from the master cylinder first, then the closest. For the front circuit this generally means the passenger/right caliper first, then driver/left. For the rear, bleed the side farthest from the rear master (visual check) first.

5. Bleeding method options

  • Vacuum bleeder (recommended for clean, one-person operation): Attach clear tubing to bleeder nipple and vacuum pump, open nipple, pull fluid until clear bubbles stop, close nipple while under vacuum, repeat until fluid is bubble-free.
  • Manual two-person bleed: Helper gradually squeezes brake lever/pedal while you open bleeder briefly to expel fluid and close before the lever/pedal returns. Repeat until clear fluid flows and no air is present.
  • Pressure bleeder: Follow manufacturer instructions for pressurizing reservoir with fresh fluid and cycle until clear fluid appears at each caliper bleeder.

6. Bleeding procedure (detailed)

  1. Attach clear tubing to the bleeder nipple and place the other end into a catch bottle partially filled with clean brake fluid to prevent air re-entry.
  2. Crack the bleeder nipple a 1/4 turn to allow fluid flow. Do not fully remove the nipple.
  3. Operate your chosen bleed method until the fluid runs clear without bubbles. Monitor the reservoir level closely and top up with fresh DOT 4 as needed to avoid running the master cylinder dry.
  4. When clear, tighten the bleeder nipple to specified snugness (do not over-torque; the bleeder is typically steel into aluminumuse a torque of approximately 8-12 ft-lbs if you have a torque wrench, otherwise snug securely).
  5. Wipe any spilled fluid, then move to the next caliper in the prescribed order.
  6. Repeat for the other circuit (front or rear) following the same pattern.

7. Final steps and checks

  • Top each reservoir to the MAX mark, reinstall and tighten caps, making sure reservoir seals seat properly.
  • Pump the brake lever/pedal multiple times to confirm firm feel. If the lever/pedal feels spongy, repeat bleeding until firm.
  • Inspect all bleeder nipples, banjo bolts, and line fittings for leaks after a short ride and re-torque if required to spec.
  • Clean any residual fluid from painted surfaces immediately with isopropyl alcohol.

Torque and fitting notes

  • Banjo bolt torque varies by bolt size and washer type. If you do not have the Can-Am torque chart handy, tighten banjo fittings evenly and securely then check for leaks under pressure. When available, refer to factory specs; typical small banjo bolts range 15-25 ft-lbs depending on washer and bolt size.
  • Bleeder nipples are small and thread into soft metalavoid over-tightening.

Maintenance schedule & tips

  • Replace brake fluid every 1-2 years or sooner if fluid appears dark or contaminated.
  • Inspect brake pads, rotors, lines, and master cylinder boots while bleeding. Replace any cracked hoses, corroded fittings, or thin pads.
  • Store brake fluid tightly capped in a cool dry place. Brake fluid is hygroscopic – it absorbs moisture, which reduces boiling point and brake performance.
  • Record the service in your maintenance log and note fluid type and date for future reference.

Troubleshooting

  • Persistent spongy brake feel after repeated bleeding indicates a likely leak, collapsed brake hose, or master cylinder internal seal issue — inspect lines and master cylinder for internal/external faults.
  • If one caliper never clears, remove the caliper and bench-bleed it to eliminate trapped air in a piston bore.

Following this MotoSport-specific procedure will restore correct brake feel and preserve the integrity of your 2021 Can-Am Renegade 570 X MR braking system. If you encounter persistent issues or internal master cylinder problems, contact a qualified technician or MotoSport service for professional assistance.

Related Shopping Categories

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Shop Brake Lines for a 2021 Can-Am Renegade 570 X MR ATV.

Shop Brake Tools for a 2021 Can-Am Renegade 570 X MR ATV.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.