How to Bleed & Replace Brake Fluid on a 2008 Can-Am Renegade 500

Shop parts for a 2008 Can-Am Renegade 500 ATV.

This MotoSport-exclusive guide walks through replacing brake fluid and bleeding the brake circuits on a 2008 Can-Am Renegade 500 (MMY: CAN_AM;REN500;2008). Procedures here are tailored to the Renegade–covering the separate front and rear systems, correct fluid choice, tools, safety notes, and tips from our tech bench so you can get reliable, firm brakes.

What you need

  • DOT 4 brake fluid (fresh, unopened)
  • Clear hose that fits bleed nipple
  • Catch bottle and rags
  • Hand vacuum pump or syringe & one-way bleed valve (recommended)
  • Metric sockets and box-end wrenches
  • Flat screwdriver, bleeder wrench or small open-end wrench
  • Torque wrench (for caliper bolts & wheel hardware)
  • Gloves, safety glasses
  • Service manual or phone for torque/spec reference

Model-specific notes for the 2008 Renegade 500

  • The Renegade 500 uses DOT 4 fluid from the factory. Do not mix DOT 3 or DOT 5 (silicone) with DOT 4.
  • This ATV has two independent circuits: the front brakes are controlled by the handlebar master cylinder; the rear brake is controlled by the foot master cylinder. Bleed each circuit separately.
  • Reservoir locations: handlebar front reservoir is on the right handlebar area; rear master cylinder and reservoir are located near the foot brake pedal and frame on the left side. Clean the caps before opening to avoid contamination.
  • If your machine is equipped with ABS or hydraulic brake assist (some aftermarket installs), follow the specific sequence for that system; this guide assumes standard hydraulic calipers without ABS.
  • Aftermarket calipers, braided lines, or modified pedal configurations may require alternate bleed sequences. Note any non-stock components before beginning.

Safety & prep

  • Work on a level surface with the ATV stable on a stand; wheel removal is optional but helps access calipers.
  • Do not let brake fluid contact painted surfaces—it damages paint. Wipe spills immediately with water.
  • Wear gloves & eye protection. Dispose of used fluid responsibly.
  • Keep the reservoir capped when not actively adding fluid to avoid moisture contamination.

Step-by-step: Replace fluid & bleed the front brakes (handlebar master)

  1. Remove the cap & diaphragm from the handlebar master cylinder. Clean around the cap before opening.
  2. Siphon or siphon-syringe out as much old fluid from the reservoir as possible. Refill with fresh DOT 4 to just below the max line.
  3. Wrap a clear hose onto the front caliper bleed nipple and submerge the other end in a catch bottle partially filled with clean brake fluid so air does not re-enter the system.
  4. Starting at the caliper farthest from the master cylinder is standard when multiple calipers exist. On single-front-caliper Renegade setups bleed that caliper. If dual front calipers, do farthest then nearest.
  5. Loosen the bleed nipple slightly. Use a hand vacuum or pump fluid through by gently squeezing the front brake lever. If using a helper, have them hold steady lever pressure while you open the nipple briefly to let fluid escape, then close the nipple before they release the lever. Repeat until clear, bubble-free fluid runs into the catch bottle.
  6. Keep the reservoir topped with fresh fluid during the process to prevent air entry.
  7. Tighten the bleed nipple when finished. Clean any spilled fluid and reinstall the diaphragm & cap.

Step-by-step: Replace fluid & bleed the rear brake (foot master)

  1. Locate the rear master cylinder reservoir near the brake pedal, clean the cap, remove diaphragm and cap.
  2. Siphon old fluid from the reservoir and refill with fresh DOT 4.
  3. Attach a clear hose to the rear caliper bleed nipple and submerge the hose end in a catch bottle with some fresh fluid.
  4. Operate the rear brake pedal several times and hold it down. Open the bleed nipple to let fluid and air escape, then close it before releasing the pedal. Repeat until the fluid is clear and air-free.
  5. Ensure reservoir level remains adequate throughout bleeding. Tighten bleed nipple and clean up any fluid.

Bench tips & troubleshooting

  • If you keep getting foam or bubbles, there may be a leak in a hose, a faulty master cylinder seal, or porous caliper piston boots. Inspect lines, fittings, and caliper seals.
  • Soft or spongy levers after bleeding usually indicate remaining air. Repeat bleeding using a vacuum pump or pressure-bleeder for stubborn air pockets.
  • If brake performance is still poor after bleeding, inspect pads, rotors, caliper piston movement, and pedal travel. Replace worn pads or warped rotors as needed.
  • A one-way bleed valve or vacuum bleeder makes a single-tech bleed faster and reduces the chance of introducing air.
  • Always use fresh unopened DOT 4 and keep caps sealed until use to avoid moisture uptake.

Post-service checks

  • Verify firm lever & pedal feel with the engine off, then re-check with the engine running if the system geometry or booster is present.
  • Inspect for leaks around bleed nipples, banjo fittings, and master cylinder. Retorque any hardware to factory specs from the service manual.
  • Test ride cautiously at low speed to confirm stopping power before returning to normal riding.

Maintenance intervals & final notes

  • MotoSport recommends replacing brake fluid every 1-2 years depending on riding conditions and moisture exposure. Heavy mud, water crossings, or long storage intervals justify annual replacement.
  • Keep an eye on fluid color and reservoir level. Dark fluid indicates contamination and reduced boiling point.
  • If you suspect internal master cylinder failure or persistent leaks, replace the faulty component with OEM or quality aftermarket parts available from MotoSport.

For model-specific parts, seals, or calipers for your 2008 Can-Am Renegade 500 MMY, check our parts catalog and match OEM part numbers before ordering.

Related Shopping Categories

Shop Brake Fluid for a 2008 Can-Am Renegade 500 ATV.

Shop Brake Bleeders for a 2008 Can-Am Renegade 500 ATV.

Shop Brake Pads for a 2008 Can-Am Renegade 500 ATV.

Shop Brake Lines for a 2008 Can-Am Renegade 500 ATV.

Shop Brake Tools for a 2008 Can-Am Renegade 500 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.