What causes the hard braking and inability to stop in Peugeot 408?

Can Brake Fluids Be Mixed?

Brake fluids cannot be mixed. Different types and brands of brake fluids contain varying compositions, and mixing them can lead to a decline in performance indicators and chemical reactions, which may reduce the braking effectiveness of the vehicle and negatively impact the fluid's temperature resistance, thereby affecting driving safety. Brake fluid is a functional liquid used to stop wheel rotation, serving to transmit energy, and it also has anti-corrosion, anti-rust, and lubrication properties. Types of brake fluids: Castor oil-alcohol type, made from refined castor oil and low-carbon alcohol; Synthetic type, formulated with ethers, alcohols, esters, and additives for lubrication, oxidation resistance, rust prevention, and anti-rubber swelling; Mineral oil type, produced from refined light diesel fractions with thickeners. Precautions for using automotive brake fluid: If gasoline, diesel, or engine oil accidentally mixes into a braking system using synthetic brake fluid, the incompatibility between the fluids can also reduce braking effectiveness. For vehicles that have traveled 40,000 kilometers or have used brake fluid continuously for over two years, the brake fluid can easily deteriorate due to prolonged use, so timely replacement is essential. For vehicles equipped with a brake fluid level warning device, always monitor whether the warning light is flashing and whether the sensor is functioning properly. When the brake fluid is low, it should be replenished promptly, and stored brake fluid should be maintained between the marked minimum and maximum capacity levels. If the vehicle experiences inconsistent braking during normal operation, the brake fluid should be replaced immediately. Before replacement, clean the braking system thoroughly with alcohol. If the vehicle's braking is uneven, conduct a comprehensive inspection of the braking system. If the wheel cylinder rubber cups are found to be excessively swollen, it may indicate issues with the brake fluid quality. In such cases, opt for higher-quality brake fluid for replacement and replace the rubber cups simultaneously. During seasonal changes, especially in winter, if braking effectiveness declines, it might be due to the brake fluid's grade not being suitable for winter conditions. When replacing the brake fluid, choose one with lower viscosity in cold temperatures. Do not mix different types or brands of brake fluids. For braking systems with special requirements, use specific brands of brake fluid. Since different brands and types of brake fluids have different formulations, mixing them can degrade performance. Even those brands that claim compatibility or substitutability may not perform satisfactorily, so avoid long-term use of mixed fluids. If water or impurities are found in the brake fluid, replace or filter it promptly to prevent insufficient braking pressure, which could impair braking effectiveness. Regularly replace brake fluid: The volume of brake fluid changes with temperature, so the brake fluid reservoir has a vent hole. Air drawn in through this hole may contain moisture or impurities, which can be absorbed or dissolved by the brake fluid, lowering its boiling point. During prolonged braking, the temperature of the braking system rises, increasing the risk of vapor lock in the brake lines, where compressed air can lead to reduced braking force or failure. For driving safety, brake fluid must be replaced regularly.

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How Many Hours Are Required for Subject 4?

Subject 4 generally requires 10 hours of study. Below are details regarding the study hours for Subject 4: 1. Different driver's licenses have varying hour requirements: C1, C2, and C5 licenses require 10 hours for Subject 4; A1, A2, and B1 licenses require 16 hours; A3 and B2 licenses require 20 hours. 2. Notes on clocking study hours: One study hour equals 60 minutes, with effective teaching time not less than 45 minutes. Theoretical study is limited to a maximum of 4 hours per day. If study time exceeds 4 hours, it will be counted as 4 hours.

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How long is the validity period for applying for a driver's license?

Three years. For obtaining a C1 driver's license, if the subject one test is not passed, there is no time limit. If the subject one test has been passed, there is no fixed validity period starting from the application date; the validity period is calculated from the date of passing subject one and is three years. The relevant requirements for the driver's license test are as follows: 1. Knowledge required to obtain a driver's license: The purpose of the driver's license test is to pass the examination for obtaining a motor vehicle driver's license. The content of the test subjects and the passing standards are uniformly set nationwide. The test is divided into four examinations covering three subjects: theoretical knowledge, field driving skills, road driving skills, and civilized driving-related knowledge.

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What Does the Tire Model Number Mean?

Tire model numbers represent the tire's width, aspect ratio, type, and applicable size. For example, a tire model number like 205/60R16 can be interpreted as follows: The first number 205 indicates the tire width is 205 millimeters. The number 60 denotes the tire's aspect ratio is 60%, meaning the sidewall height is 60% of the tire's width. The letter R stands for radial tire, and 16 signifies the rim diameter is 16 inches. In addition to the model number, tires also display the following common specifications: Carcass ply material: Indicated by Chinese pinyin abbreviations, such as M for cotton cord, R for rayon cord, N for nylon cord, G for steel cord, and ZG for steel radial cord. Speed rating: Indicates the maximum speed at which the tire can carry a specified load under defined conditions. Letters from A to Z represent certified speed ratings ranging from 4.8 km/h to 300 km/h. Common speed ratings include: Q: 160 km/h; H: 210 km/h; V: 240 km/h; W: 270 km/h; Y: 300 km/h. Rim specification: Shows the compatible rim size for the tire, facilitating practical use, such as "Standard Rim 5.00F".

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What is the green book of a car called?

The green book is the registration certificate, which is issued to the car owner on the spot by the staff of the vehicle management office at the inspection site when a new car is registered. More relevant information is as follows: 1. Introduction: The so-called big green book is the 'Motor Vehicle Registration Certificate', which is equivalent to a person's household registration booklet. It records the registration date and the date of manufacture, and is kept by the vehicle owner. It is generally not used on a daily basis and is not carried with the vehicle. However, it must be used when transferring the ownership of the vehicle. If the car is mortgaged for a loan, the lending company will usually also hold the big green book. Losing the big green book means that we only have the right to use the vehicle but not the right to sell it. 2. Prerequisite: Only when the car is purchased in full can the green book be obtained. If the car is purchased with a loan, the green book must be mortgaged to the loan bank or company. After the customer repays the loan, the big green book must be taken to the vehicle management office to release the mortgage, otherwise the ownership of the car will belong to the loan company.

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What is the difference between antifreeze and water?

The difference between antifreeze and water lies in the fact that automotive antifreeze has a higher boiling point and lower freezing point than water. Antifreeze can reach a boiling point of 106°C and a freezing point below -45°C, offering better cooling performance and superior freeze protection compared to water. Additionally, antifreeze contains various special additives that provide anti-corrosion, anti-scaling, and anti-rust properties. Methods for selecting antifreeze: The basic indicators for antifreeze are its freezing and boiling points. The market offers antifreeze with freezing points of -15°C, -25°C, -30°C, -40°C, etc. Generally, it is advisable to choose an antifreeze with a freezing point at least 10°C lower than the lowest temperature in your region. Antifreeze replacement intervals: For vehicles that operate for extended periods, such as taxis, high-quality antifreeze should typically be replaced annually. Vehicles with shorter operating times can have their antifreeze replaced every two years or every 30,000 kilometers. To prevent excessive foam formation, which can reduce the heat exchange efficiency between the antifreeze and engine components, ensure the product is within its validity period when adding it. Long-life antifreeze can remain effective for up to three years. If suspended particles, sediment, or signs of deterioration or discoloration are observed in the antifreeze, it should be replaced promptly, and the system should be cleaned.

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What causes the hard braking and inability to stop in Peugeot 408?

Can Brake Fluids Be Mixed?

How Many Hours Are Required for Subject 4?

How long is the validity period for applying for a driver's license?

What Does the Tire Model Number Mean?

What is the green book of a car called?

What is the difference between antifreeze and water?

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