The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

Brake Fluid Flush on 2019 ILX - DIY or Shop? DOT3 or DOT4?

0

Mark S. · rep 0 · May 22, 5:00 AM · 1 replies · solved · Question

Vehicle: 2019 Acura ILX A-Spec

Hi everyone,

I'm thinking about doing a brake fluid flush on my 2019 Acura ILX A-Spec. It's got about 50,000 miles on it, and I haven't touched the brake fluid since I bought it new. I've heard it's good practice to do this every few years, but I'm not sure if it's a DIY job or if I should just take it to the dealership.

Also, what type of brake fluid should I use? Is DOT3 sufficient, or should I upgrade to DOT4? Any specific tips for bleeding the brakes on an ILX, especially with the ABS system? I want to make sure I maintain my braking performance.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:00 AM

0

ClearTheCode admin answer:

Performing a brake fluid flush on your 2019 Acura ILX A-Spec is excellent preventative maintenance. Brake fluid is hygroscopic, meaning it absorbs moisture over time, which lowers its boiling point and can lead to corrosion in the brake system.

  1. Fluid Type: For your 2019 Acura ILX, DOT3 brake fluid is the factory-recommended specification. While DOT4 has a higher dry boiling point, it also absorbs moisture faster and may not be necessary for street driving. Sticking with a high-quality DOT3 fluid that meets Honda/Acura specifications is perfectly fine and recommended unless you're tracking the car. Never mix DOT3 and DOT4 with DOT5 (silicone-based) fluid.
  2. DIY vs. Shop: A brake fluid flush is a moderate DIY job. It requires attention to detail and ideally a second person to pump the brakes, or a pressure/vacuum bleeder. If you're comfortable working with brake systems and have the right tools, it's definitely doable. If not, a professional shop can perform it efficiently and safely.
  3. Bleeding Procedure Tips:
    • Order: Always bleed the brakes starting with the wheel furthest from the master cylinder and working your way closer. For most Acura ILX models, this order is typically: Passenger Rear, Driver Rear, Passenger Front, Driver Front.
    • Tools: You'll need a wrench for the bleed nipples, a clear hose, a collection bottle, and fresh brake fluid. A turkey baster can be used to remove old fluid from the master cylinder reservoir before adding new.
    • Process (Two-Person Method):
      1. Ensure the master cylinder reservoir is full of new fluid.
      2. Have one person slowly pump the brake pedal 3-4 times and hold it down.
      3. The second person opens the bleed nipple on the caliper/drum, allowing fluid to flow out. Close the nipple before the pedal reaches the floor.
      4. Repeat until clear, bubble-free fluid comes out. Keep the master cylinder reservoir topped up to prevent air from entering the system.
    • ABS System: For a standard fluid flush, you typically don't need to activate the ABS system with a scan tool. However, if air gets into the ABS module, a professional bleed procedure using a scan tool might be necessary.

Causes of Brake Fluid Degradation: Time and exposure to moisture in the air are the primary causes. High temperatures from heavy braking can also accelerate degradation.

When to See a Shop: If you're unsure about the process, encounter difficulty opening bleed nipples, or if the brake pedal feels spongy after the flush, it's best to take your ILX to a professional. They can ensure proper bleeding, check for leaks, and use specialized equipment if the ABS system requires activation for bleeding.

Menu

Help & account