How to change brake fluid: hot topics and detailed tutorials on the Internet in the past 10 days
Among the hot topics about car maintenance on the Internet recently, "brake fluid replacement" has become the focus of car owners' attention. With the arrival of high temperatures and rainy weather in summer, the safety of the braking system has received much attention. This article will combine the hot content of the past 10 days to provide you with a structured brake fluid replacement guide.
1. Popular car maintenance topics in the past 10 days
| topic | heat index | Main discussion points |
|---|---|---|
| Brake fluid replacement interval | ★★★★★ | Is it necessary to replace it after 2 years/40,000 kilometers? |
| DIY brake fluid replacement | ★★★★☆ | Tool preparation and operational risks |
| Brake fluid brand comparison | ★★★☆☆ | DOT4 vs DOT5 performance differences |
| Brake failure case in rainy season | ★★★☆☆ | The dangers of excessive moisture content |
2. The whole process of brake fluid replacement
1. Preparation
• Tool list:Jack, oil pipe wrench, clear hose, cleaning cloth, new brake fluid (DOT4 recommended)
• Safety Tips: Make sure the vehicle is on level ground, wear goggles and gloves
2. Operation steps (structured process)
| step | Operational points | Things to note |
|---|---|---|
| 1. Drain the old fluid | Start with the wheel furthest from the master cylinder (usually the right rear wheel) | Avoid air entering ducts |
| 2. Add new liquid | Keep the reservoir filled with liquid at all times | Different brands cannot be mixed |
| 3. Exhaust operation | The two of them worked together to apply the brakes to exhaust the air. | Observe that there are no bubbles in the hose |
| 4. Test | Start the vehicle and apply the brakes 3-5 times | The pedal has no soft feeling |
3. FAQ (summary of hot issues)
Q: What will happen if I don’t replace the brake fluid?
A: Excessive moisture content will cause the boiling point to drop, air lock may occur at high temperatures, and the braking distance will be extended by more than 30%.
Q: Can I replace it myself?
A: You need to have certain mechanical knowledge, and focus on exhausting thoroughly. The survey shows that 72% of DIY failure cases are due to insufficient exhaust.
3. Performance comparison of mainstream brake fluids in 2023
| brand | model | dry boiling point | wet boiling point | reference price |
|---|---|---|---|---|
| Bosch | DOT4 | 265℃ | 170℃ | ￥85/L |
| Philodo | DOT5.1 | 280℃ | 190℃ | ￥120/L |
| Great Wall | DOT4 | 260℃ | 165℃ | ￥65/L |
4. Professional advice
1. Check the moisture content every 2 years or 40,000 kilometers (more than 3% must be replaced)
2. It is recommended to check the status of the brake fluid after heavy rain.
3. Modified vehicles should use higher specification DOT5.1
Through the structured data and hot spot analysis of this article, you can not only master brake fluid replacement skills, but also understand the latest market trends. If you need more professional services, it is recommended to use the brake fluid replacement package provided by Tmall Car Care and other platforms. The average price is about 200-300 yuan, including working hours.
check the details
check the details
en
