To replace Nissan brake fluid effectively, one requires essential tools like a brake bleeder kit, flare nut wrenches, and safety gear. First, ensure the vehicle is secure on a flat surface. Reference the owner's manual to select the appropriate DOT 3 or DOT 4 fluid, based on driving conditions. Locate the brake fluid reservoir by the driver's side firewall. Drain old fluid through the bleeder valve using pedal assistance, ensuring all air is expelled. Refill the system, monitoring levels with recommended fluid. After bleeding the lines in sequence, check pedal firmness and inspect for leaks. Further steps can enhance understanding.
Gather Necessary Tools
To change the brake fluid in your Nissan, start by getting the right tools. First, you'll need a brake bleeder kit. Make sure it fits Nissan models to avoid any problems. This kit helps you remove old fluid without letting air into the brake system.
Next, grab a set of wrenches. A flare nut wrench is great for loosening and tightening brake line fittings without damaging the nuts. These wrenches give you a firm grip, especially in tight spaces.
Keep a clean, lint-free cloth or rag handy. Use it to wipe up any spills quickly and keep the area clean.
You'll also need a jack and jack stands. These will help you lift the car safely so you can reach all the parts you need to work on.
Wear safety goggles and gloves to protect your eyes and skin from brake fluid, which can be harmful.
Choose the Right Brake Fluid
Choosing the right brake fluid keeps your Nissan's brakes working well and safely. Brake fluid helps transfer the force from the brake pedal to the wheels. Picking the right type affects how well your brakes work and last.
Nissan usually suggests using DOT 3 or DOT 4 brake fluids. Check your owner's manual for what your car needs.
Brake fluids have different boiling points and makeups. DOT 3 is common and works for everyday driving. DOT 4 has a higher boiling point, good for high-performance cars or when brakes get hot often.
- DOT 3: Good for normal driving.
- DOT 4: Better for performance or heavy use.
- Check Manual: Make sure it's right for your Nissan model.
Match the brake fluid to how you drive and what your car needs.
Prepare Your Nissan
To change the brake fluid in your Nissan, start by parking on a flat surface and using the parking brake. This will keep the car from moving. Then, gather your tools: wrenches, a jack, jack stands, and a brake bleeder kit. These will help you do the job without stopping.
Before you begin, check your car's brakes. Look at the brake lines, calipers, and other parts for any wear or damage. This check helps you find problems that might need fixing before you change the brake fluid.
Here's a quick guide to getting ready:
| Step | What to Do | Tools Needed |
|---|---|---|
| Park and Secure | Use a flat surface and set the brake | None |
| Gather Your Tools | Collect the needed items | Wrenches, bleeder kit |
| Inspect Brakes | Look for any wear or damage | Just your eyes |
Being well-prepared makes the brake fluid change go smoothly.
Locate the Brake Fluid Reservoir
Before you change the brake fluid in your Nissan, find the brake fluid reservoir. It's usually under the hood, close to the driver's side by the firewall. The reservoir is a see-through plastic container, often labeled "Brake Fluid."
To find it easily:
- Check your owner's manual: It tells you exactly where to look for your specific model.
- Locate the master cylinder: The reservoir sits on top of this part, near the firewall.
- Look at the cap: It should have a brake symbol or the words "Brake Fluid" on it.
Knowing where the reservoir is helps keep the brake system working well and prevents spills.
Once you find it, you can move on to the next steps.
Drain the Old Brake Fluid
Check and replace your Nissan's brake fluid at regular intervals. Brake fluid can soak up moisture, which might lower its boiling point and cause problems with braking.
Park your car on a flat surface and use jack stands to lift it safely. Look for the brake bleeder valve on each wheel, usually on the brake caliper. Use a box-end wrench to loosen the valve a bit, but don't open it all the way.
Connect a clear plastic tube to the valve, with the other end in a container for disposing of the old fluid. This helps keep air out of the brake system.
Ask someone to press the brake pedal slowly and steadily. While they do this, open the valve to let the old fluid out. When the pedal is all the way down, close the valve and have your helper lift the pedal.
Do this until the fluid in the tube looks clear, showing that old fluid is gone. Follow local rules for getting rid of the old brake fluid properly.
Refill With New Brake Fluid
First, get rid of all the old brake fluid. Then, you need to fill up the system with fresh brake fluid. Choose the right type for your car. For Nissan cars, you usually need DOT 3 or DOT 4 brake fluid. Check your car's manual to be sure. Using the wrong kind can mess up your brakes.
Here's how to fill it correctly:
- Check the Reservoir: Look inside the brake fluid container. Make sure there's no dirt or leftover stuff. Clean it well so the new fluid stays pure.
- Use a Funnel: Get a clean funnel to pour the new brake fluid. This will help avoid spills and gives you a steady pour.
- Watch the Fluid Levels: Pour the fluid slowly and watch the fill line. Don't overfill, as this can cause problems.
Before you start pouring, check if the new brake fluid bottle is closed tight and hasn't been open for long. Air can ruin the fluid's quality.
Once you're done, close the reservoir cap securely.
Bleed the Brake Lines
Once you have the new brake fluid in, it's time to get rid of any air in the brake lines to make sure your brakes work well. Air bubbles in the lines can make the brakes less effective.
Start by working on the brake caliper that is the farthest from the master cylinder. This is usually the back passenger side. Doing this helps push out air and dirt in an orderly way.
You'll need a clear plastic tube and a container to catch the fluid that comes out. Connect the tube to the brake bleeder valve. Ask a friend to press the brake pedal a few times and keep it down.
Then, use a wrench to open the bleeder valve. Fluid and air will flow into the tube. Close the valve before your friend lets go of the pedal to stop air from going back in.
Keep an eye on the fluid reservoir to make sure it doesn't get too low, as this can let air in.
Do the same process for each brake caliper, starting from the one furthest away and moving closer. Use a torque wrench to tighten the bleeder valves to avoid leaks.
Following these steps helps keep your brakes responsive and reliable.
Test the Braking System
Before you drive your car, check the brakes to make sure they work well. Start by pressing the brake pedal while the car is not moving. The pedal should feel firm and not go down too much. If it feels soft, check for air in the brake lines or leaks.
Next, take your car for a slow drive in a safe place. Gradually speed up and then brake gently. The car should stop smoothly and go straight, without pulling to one side or making strange noises. This shows that the brakes are working evenly.
Here's a simple checklist for testing:
- Brake Pedal: It should feel firm.
- Leaks: Look for any fluid leaks.
- Noise: Listen for grinding or squealing sounds when braking.
Testing the brakes ensures your Nissan is safe to drive.
People Also Ask
How Often Should Nissan Brake Fluid Be Replaced?
Change the brake fluid in your Nissan every 20,000 to 30,000 miles or every two years. This keeps the brakes working well and helps avoid problems. It's important to do this even if you don't drive a lot, to keep your car safe.
What Happens if I Use the Wrong Type of Brake Fluid?
Using the wrong brake fluid can make your brakes not work well, possibly harm the brake parts, and make your car unsafe. Always use the brake fluid your car maker suggests to keep your car working right and avoid spending money on fixing it.
Can I Replace Brake Fluid Without Professional Help?
Yes, you can change brake fluid yourself if you have the right tools and follow instructions carefully. It's important to be very careful and follow safety steps. If you're unsure, it's best to ask a professional to help so your brakes work well.
What Are the Signs of Contaminated Brake Fluid?
If brake fluid is dirty, it might look dark and smell bad, like something burning. You might also notice that your car doesn't stop as well or the brake pedal feels soft and squishy. It's important to get it checked right away.
Is It Necessary to Replace Brake Fluid After a Leak?
Yes, you should change the brake fluid if there's a leak. Leaks let air and water in, which can make your brakes not work right. Fixing the leak and putting in new fluid helps keep your brakes safe and working well.