
Yes, it should be replaced. Changing the brake fluid in a car ensures optimal braking performance. Below are the reasons for unusual noises when braking: 1. "Hissing" sound: This indicates a fault in the caliper, brake pad, or brake shoe. 2. Continuous noise: This is caused by poor caliper retraction, leading to prolonged friction between the disc and pad. 3. Foreign objects: There may be debris between the brake pad and brake disc. 4. Faulty guide pin: The brake guide pin is malfunctioning. Below are the reasons for steering wheel vibration during braking: 1. Wear: Uneven wear on the brake disc can cause steering wheel vibration when braking at high speeds. 2. Braking imbalance: When driving at a certain speed, uneven braking torque can cause the left and right wheels on the same axle to desynchronize, resulting in brake looseness. 3. Uneven rolling speed: If the braking torque imbalance becomes severe, it can cause the left and right wheels to roll at different speeds, leading to side-to-side wheel oscillation, which is then transmitted to the steering wheel.

I've been driving for nearly twenty years and know full well that neglecting brake fluid changes is a major no-no. This stuff, called hydraulic fluid, absorbs moisture from the air over time, lowering its boiling point. During emergency braking, high temperatures can cause it to boil and create air bubbles, leading to a spongy brake pedal or even complete failure – with serious consequences. I remember last year when my cousin nearly had an accident precisely because he didn't change it on schedule. The general recommendation is to replace it every two years or 30,000 kilometers, but always check your vehicle's manual for specifics. During routine maintenance, if you notice the fluid has darkened or become cloudy, that's your warning sign – don't delay. A fluid change costs next to nothing, around a hundred bucks for peace of mind, plus it protects your ABS system and avoids heftier repair bills down the line. Bottom line: safe driving comes first – this isn't something to mess around with.

Brake fluid absolutely needs to be replaced. I change it religiously every two years, treating it like a small maintenance investment. It's not permanent – when it absorbs too much water, it can corrode the brake system lines, causing leaks or pump failure. If problems occur, replacing an ABS unit could cost thousands, which just isn't worth it. Personal experience: last time I forgot to change it, the braking response slowed down and I nearly rear-ended someone – scared me straight to the repair shop. Best to combine it with regular maintenance cycles, like changing it when you get an oil change. Requirements vary by vehicle – SUVs might need more frequent changes. Remember: small preventive spending saves big trouble later. Don't get trapped by trying to save pennies.

I usually judge by the car's condition, and brake fluid does need regular replacement. After absorbing moisture and thinning out, its boiling point drops, leading to reduced braking force. In daily driving, if the pedal feels spongy when pressed, it might indicate the fluid has aged. Generally, it should be checked every two years, and replaced if it exceeds 40,000 kilometers. Professionally speaking, not replacing it increases the risk of longer braking distances. I learned from a technician that DIY testing is quite simple—just use a small pen to measure moisture content. In short, don’t overlook it; safety comes first.

I believe brake fluid must be replaced. I've discussed this many times in car clubs. Over time, the fluid absorbs moisture, which reduces braking performance and increases accident risks. My own old car never had it changed, resulting in nearly one meter longer braking distance, and repairs were troublesome. I recommend replacing it every two years or 20,000 kilometers—it's affordable, costing less than 100 yuan. Pay attention to the weather, especially in humid areas where more frequent changes are needed. During replacement, you can also check brake pad wear, killing two birds with one stone. Don’t wait until problems arise to regret it—regular maintenance ensures safety.


