"Vulnerable parts", as the name suggests, are the most easily damaged parts among auto parts. So, what are the wearing parts of auto parts? How long is the replacement cycle for different wearing parts?

■Wiper blade: There is no fixed cycle for the replacement of the wiper blade. Depending on the climate in different places, the frequency of wiper blade replacement is different. When using wiper blades daily, avoid "dry scraping", which can easily damage the wiper blades, and in severe cases, it will damage the car glass. It is best to start the wiper after spraying the glass liquid with better cleaning and lubricity. The wiper blade should be cleaned while washing the car. When purchasing a wiper blade, you should refer to the vehicle manual to purchase a suitable specification wiper. It is best to touch the surface of the rubber wiper blade with your fingers. If the blade is found to be aged, hardened, cracked, and the rubber blade lacks elasticity, that is, It can be concluded as a fake and inferior product.

■Brake pads: According to personal driving habits, the service life of brake pads is also different. Under normal circumstances, the brake pads of a vehicle need to be replaced after driving more than 10,000 kilometers, so it is best to check the brake pads of the vehicle when driving about 20,000 kilometers. Generally, the brake pads need to be replaced at about 30,000 kilometers. Normally, you can check the brake pads by touching the tire wall with your hands after parking. If the temperature of a tire's wall is particularly high, it is likely that there is a problem with the brake pads. The brake pads should be checked immediately.

■Tire: Under normal circumstances, the replacement cycle of a tire is about 30,000 to 40,000 kilometers. When the car goes to the 4S shop for chassis maintenance, the 4 tires of the car will be checked and then rotated accordingly to extend the service life of the tires. When the vehicle is traveling about 20,000 kilometers, it is best to perform four-wheel alignment once to correct the four-wheel data to ensure normal use and prevent uneven tire wear. If the four-wheel positioning data is inaccurate, it is easy to cause eccentric wear of the tires and reduce the life of the tires. When the inspection finds that the tire pattern is less than 1 mm, the owner must replace it immediately!

■Spark plugs, engine timing belt, battery: Spark plugs are generally divided into two categories, one is platinum spark plugs, the other is ordinary spark plugs, platinum spark plugs are generally replaced when driving 80,000 to 100,000 kilometers, while ordinary spark plugs The life span is much shorter, and it usually needs to be replaced after 20,000 to 30,000 kilometers. Fuel quality also affects the life of spark plugs. Therefore, it is best to go to a regular gas station when refueling. The engine timing belt is generally best to be inspected or replaced at 2 years or 60,000 kilometers. If the vehicle is equipped with a timing chain, it does not need to be replaced after 2 years or 60,000 kilometers. The battery is usually checked and replaced according to the situation, usually every 2 years. When the vehicle is turned off, the electrical equipment of the vehicle should be used as little as possible to prevent the battery from losing power.

■Three filters: riders are accustomed to refer to the oil filter, air filter, and fuel filter collectively as the "three filters", and the filtering parts need to be replaced in time. Under normal circumstances, the oil needs to be replaced every 5000 kilometers, and the oil filter needs to be replaced together; the air filter is replaced at about 20,000 kilometers, and the situation that needs to be replaced in advance is that the area where the vehicle is located is more polluted; The fuel filter should usually be replaced at 20,000 kilometers.

■Automotive oil: According to the usage of various oils required by the vehicle, the engine oil replacement cycle is 5000 kilometers or every 3 months. Usually, you must ensure that the oil volume is above the bottom line and you need to check it frequently. The amount of oil; the brake oil is recommended to be replaced at about 40,000 kilometers; the antifreeze is generally replaced at 2 years or 60,000 kilometers, and it must be replenished in time if it is below the lower limit; the transmission oil is between 50,000 and 60,000 kilometers Replace it at the time; the steering oil should be replaced at 60,000 kilometers.

■Spark plug: Usually the service life of spark plug is 15000km, and the general service life of long-term spark plug is 30000km. The spark plug is used to ignite the mixture by using the electric spark generated by the electrode to introduce the pulse high voltage electricity generated by the ignition coil into the combustion chamber to complete the combustion. The model of the domestic spark plug is composed of three parts of numbers or letters. The diameter of the thread is indicated by the front number, and the length of the part of the spark plug screwed into the cylinder is indicated by the middle letter; the last digit indicates the hot type of the spark plug: 1-3 are hot, 5, 6 are medium, and 7 or more is Cold type. The "gap" of the spark plug is its main technical indicator. Too large a gap makes it difficult to start the engine, because the high voltage generated by the ignition coil and distributor is difficult to skip; if the gap is too small, the spark will be too weak and cause leakage.

Common spark plug failures include the following two situations. The spark plug should be replaced: severe ablation of the spark plug, scarring or damage at the top of the spark plug, or melting or ablation of the electrode indicates that the spark plug has been destroyed. Spark plugs sometimes have deposits on the top of the insulator and between the electrodes. In severe cases, the engine will not work. Cleaning the spark plugs can be a temporary remedy, but the root cause of the failure must be found.