What are the items of auto insurance?

Major maintenance is based on minor maintenance. In addition to oil and oil filter, air filter and gasoline filter were added to the replaced skin care products. These two kinds of filter elements play the role of filtering dust in the air and impurities in gasoline respectively. The normal operation of the engine is based on the rational use of various skin care products. If the oil three filters are not replaced in time after reaching the service life, it will have a bad influence on the engine performance. Major maintenance refers to the routine maintenance of replacing oil and oil filter, air filter and gasoline filter within the time or mileage specified by the manufacturer.

1. timing belt. Timing belt. If the car is a chain, it can be ignored, and the belt needs to be replaced, because the aging of the belt has a great impact on its life besides being stressed all the time. There are no signs before the belt breaks, and even if it is checked, it can't be detected. Once it breaks down, it is necessary to overhaul the engine, and the damage is relatively large. Besides the timing belt, there is also an accessory belt. Generally speaking, two belts are replaced together. The broken accessory belt will not damage the vehicle, but it will break down and cannot continue driving, because the generator will not generate electricity without help. The application of timing belt in engine has a long history, mature technology, lower cost and less noise. However, it needs regular inspection and maintenance, and it is still very complicated to replace, and there are many parts to be disassembled, and the maintenance cost is high. Moreover, once the timing belt "jumps", there will be phenomena such as unstable idle speed and poor acceleration.

2. If the vehicle starts normally, the idle speed is stable, there is no jitter, the low-speed fuel filler door has no setback, and the high-speed gear, lifting and throttle have no setback, there is no need to replace the spark plug and clean the oil circuit. There is no problem with the above points. In normal vehicle maintenance, replace the oil, mechanical filter and air filter, and check whether the engine and gearbox are leaking oil, oil, lighting and tire pressure.

3. Transmission oil replacement. Whether it is a manual gearbox or an automatic gearbox, the gearbox oil should be changed to 60,000 kilometers. As a more precise part of the car, the gearbox may not reach the level of a general repair shop, and the 4S shop is more familiar with the gearbox of this car, so it is recommended to change the gearbox oil back to the 4S shop for replacement.

4. The oil filter element is used to filter oil. Engine oil contains a certain amount of colloid, impurities, moisture and additives; In the process of engine operation, metal chips, impurities in the inhaled air, oil oxides, etc. generated by the friction of various components. Are the targets of oil filter. If the oil directly enters the oil circuit without filtering, it will have an adverse impact on the performance and life of the engine.

60,000 kilometers need big health care. Routine: Engine oil, mechanical filter, air filter and gasoline filter need to be replaced: antifreeze (recommended to be replaced once every two years) and brake fluid are recommended to use DOT4, spark plugs and hydraulic transmission oil for hydraulic power. Automatic 60 thousand kilometers, you can consider replacing it. If it is manual, you can choose not to choose. In addition, 60,000 kilometers, check the wear thickness of brake pads and brake discs, and it is recommended to clean the throttle valve. Maintenance depends on the maintenance manual. The manufacturer makes it clear how many kilometers to maintain and what projects to do each time. Don't let 4S increase projects and shorten kilometers. The price is open and transparent in 4S. The key is the project. You can't go wrong if you do maintenance according to the instructions.