How to Bleed & Replace Brake Fluid on a 2008 Can-Am Renegade 800 X

Shop parts for a 2008 Can-Am Renegade 800 X ATV.

This MotoSport guide walks you through safely flushing and bleeding the hydraulic brakes on a 2008 Can-Am Renegade 800 X (Renegade 800 X, 2008 MMY). Follow every step, use the correct fluid, and take precautions to protect brake components and painted surfaces.

Notes specific to the 2008 Renegade 800 X

  • Factory brake fluid type is DOT 4 in most Renegade 800 X models—confirm by checking the reservoir cap marking. Never mix DOT 3/4 with DOT 5 (silicone).
  • The Renegade has a single front master cylinder feeding both front calipers and a rear master cylinder for the rear brake (on some configurations the rear is pedal-operated via a separate reservoir). Identify which reservoir feeds which caliper before beginning.
  • Calipers use conventional bleed nipples on each caliper. There is no complex ABS module to pump unless your machine was fitted aftermarket.
  • Brake lines on the Renegade are routed near frame members and steering; inspect lines for rubbing or chafing while working.

Tools & Supplies

  • Fresh DOT 4 brake fluid (or the DOT rating marked on your cap)
  • Brake bleeder wrench or 8/10/11 mm open wrench (verify nipple size)
  • Clear plastic tubing that fits snugly over bleed nipple
  • Catch bottle and small funnel or reservoir syringe
  • Clean lint-free rags and isopropyl alcohol for cleanup
  • Rubber gloves and eye protection
  • Floor jack or stand to elevate wheels if needed
  • Assistant for manual bleeding OR a one-man vacuum or pressure bleeder

Preparation

  1. Park on a level surface, set the parking brake, and remove the key. Work with the engine cool and battery disconnected if you will be moving brake components or working near electricals.
  2. Clean around each brake reservoir cap to prevent contamination. Wipe dust and apply a small amount of brake cleaner if needed.
  3. Remove the reservoir cap and the rubber diaphragm carefully; cover the opening with clean plastic or a shop rag to slow contamination.
  4. Place drip trays and protect paintwork. Brake fluid damages plastics and paint.

Step-by-Step: Replace Brake Fluid & Bleed

  1. Top up reservoir: Add fresh DOT 4 fluid to bring the reservoir to the full mark. Never let the reservoir run dry during the procedure.
  2. Decide bleeding order: For the Renegade, bleed the caliper farthest from its reservoir first. Typical order: rear caliper first, then front calipers starting with the farthest from the master cylinder and finishing with the nearest. Confirm which reservoir feeds which circuit on your bike.
  3. Attach tubing: Slide clear tubing over the bleed nipple and submerge the other end in a small amount of clean brake fluid in your catch bottle to prevent air re-entry.
  4. Open the bleed nipple: Crack the nipple about a quarter turn. Have your assistant slowly squeeze the brake lever or pedal until firm while you watch the tubing for bubbles.
  5. Pump & hold method: With the lever/pedal depressed, hold it, open the nipple to let fluid and air escape, then close the nipple before the assistant releases the lever. Repeat until no bubbles appear and lever feel is firm.
  6. One-way vacuum/pressure bleeder: If using a vacuum or pressure bleeder, follow the tool manufacturer instructions but maintain reservoir level and bleed until clear fluid runs without bubbles.
  7. Repeat for each caliper: Maintain reservoir level throughout. Finish with the caliper nearest the master cylinder last.
  8. Final checks: Close all bleed nipples hand-tight plus a small fraction of a turn with a wrench (do not overtighten). Clean any spilled fluid with isopropyl alcohol and rags. Reinstall the reservoir diaphragm and cap.
  9. Test lever/pedal feel: With the machine still on stands, operate the brakes repeatedly to confirm a firm, consistent feel. Lower the ATV and perform a slow-speed brake test in a safe area before riding normally.

Tips & Troubleshooting

  • If the lever stays spongey after multiple bleeds, suspect a collapsed flexible hose or internal caliper leak. Inspect hoses for swelling under pressure and replace suspect lines.
  • Stubborn air pockets collect at high points in the line. Cycle the handlebars/front suspension through travel while bleeding front circuits to move trapped air.
  • If brake fluid turns dark quickly, consider a full system flush and inspect for moisture contamination. Change fluid every 1-2 years for best performance.
  • Use only DOT-rated mineral/synthetic fluids specified by the reservoir cap. DOT 5 (silicone) is not compatible with DOT 3/4 systems.

Maintenance & Safety Reminders

  • After any brake service, torque caliper and master cylinder mounting bolts to factory specs if you remove them. If you don't have torque specs handy, tighten to a firm, manufacturer-appropriate level and consult a service manual for exact values before hard use.
  • Dispose of used brake fluid properly at a recycling center; do not pour down drains.
  • Inspect pads and rotors while bleeding. Replace pads with excessive wear or rotors with deep scoring.

When to Seek Professional Help

  • Persistent sponginess after multiple proper bleeds
  • Fluid leaking at fittings or from the master cylinder
  • Damaged caliper pistons or hoses

Follow this MotoSport procedure and your Renegade 800 X will have reliable braking performance. If you need replacement parts or fresh DOT 4 fluid, return to the parts link above to source components specific to the 2008 Can-Am Renegade 800 X.

Related Shopping Categories

Shop Brake Fluid for a 2008 Can-Am Renegade 800 X ATV.

Shop Brake Bleeders for a 2008 Can-Am Renegade 800 X ATV.

Shop Brake Pads for a 2008 Can-Am Renegade 800 X ATV.

Shop Brake Lines for a 2008 Can-Am Renegade 800 X ATV.

Shop Brake Tools for a 2008 Can-Am Renegade 800 X 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.