Brake fluid leak solution Corolla

Brake Fluid Leak Solution for Toyota Corolla E170 (2013-2019)

If you suspect a brake fluid leak in your Toyota Corolla E170, it's crucial to address this issue promptly as it can severely affect braking performance and vehicle safety. Below is a detailed guide to diagnosing and fixing a brake fluid leak.

Tools and Materials Required

• Brake fluid (DOT 3 or DOT 4 as specified in the owner's manual)
• Wrench set
• Brake line flaring tool (if brake line repair is necessary)
• Brake line and hose replacement parts (if needed)
• Brake bleeder kit
• Jack and jack stands
• Wheel chocks
• Safety goggles and gloves
• Clean rags or cloth
• Flashlight

Repair Instructions

1. Replace Damaged Brake Lines or Hoses:

   • If a brake line or hose is damaged, it needs to be replaced.
   • Use a wrench to disconnect the fitting at both ends of the damaged line or hose.
   • Install the new line or hose, ensuring all connections are tight and secure.

2. Repair or Replace Brake Calipers or Wheel Cylinders:

   • If a caliper or wheel cylinder is leaking, it may need to be rebuilt or replaced.
   • Remove the caliper or wheel cylinder by unbolting it from the mounting bracket.
   • Rebuild using a repair kit or replace with a new unit.

3. Bleed the Brake System:

   • After any brake component replacement, the system must be bled to remove air.
   • Use a brake bleeder kit, and start from the wheel farthest from the master cylinder (usually the rear passenger side).
   • Follow the sequence: Rear passenger side, rear driver side, front passenger side, front driver side.
   • Ensure the brake fluid reservoir remains full during bleeding.

4. Test the Brakes:

   • Once repairs are complete and the system is bled, test the brake pedal for firmness.
   • Check for any signs of further leaks.
   • Lower the vehicle and perform a test drive at low speed to ensure proper brake function.

5. Final Check:

   • Re-check the brake fluid level and top off if necessary.
   • Ensure all tools and parts are removed from the work area.

Conclusion

A brake fluid leak affects the safety of your Toyota Corolla E170. Timely diagnosis and repair, following the steps above, will ensure your vehicle's braking system functions correctly. If you are not comfortable performing these tasks, it is advisable to seek professional assistance.