How should the vulnerable auto parts be maintained?

　　There are many vulnerable parts on the car. If these parts are not regularly checked and maintained, your car will be faulty and inconvenience. This is the reason that people need to check the body regularly, and the auto parts manufacturers will introduce the inspection and maintenance methods for the auto damaged parts.

Electrical connector

　　The car in addition to a handful of important electrical connectors with gold contacts, most of the rest of the joints using copper - zinc alloy, under normal circumstances, its reliability is guaranteed, but if the car runs under high temperature and high humidity, bumpy environment, these connections are likely to have loose, corrosion, contact the failure and poor, and some electrical faults are caused by strange and eccentric. Therefore, in routine maintenance, we should focus on checking the joint of the computer, sensor, nozzle and other components on the car.

Chassis parts

　　From the point of view of use, chassis components are actually more prone to problems than engines, but in routine maintenance, many people often neglect the inspection of chassis components. The main fault parts of the chassis are mainly concentrated in:

　　1, shock absorber: oil leakage is a precursor for damage of shock absorber. Besides, bumping on bad road or aggravating braking distance is also a sign of damage of shock absorber.

　　2, suspension control arm rubber sleeve: after the damage of the rubber sleeve, the vehicle will run off, hit and swing a series of failures, even if four rounds of positioning do not help. If the chassis is examined carefully, the damage of the rubber sleeve is easily found.

　　3, turn to pull rod: steering pull rod relaxation is a serious safety hazard, therefore, in the routine maintenance, we must carefully check this part. The practice is very simple: hold the rod, shake hard, if there is no shaking, it is normal, otherwise, the ball head or rod assembly should be replaced.

　　4, exhaust pipe: the exhaust pipe is one of the most vulnerable parts in the bottom of the car. Don't forget to look at it when it is overhauled. In particular, the exhaust pipe with a three element catalyst should be examined more carefully.

　　5, universal joint dust proof sleeve: do not belittle the dust proof sleeve outside the universal joint. It not only has dust prevention function, but also prevents the grease loss around the universal joint. Once the dust sleeve is damaged, the grease will soon be lost. Because of the dry grinding, the universal joint is easy to damage.

　　Should pay attention to regular replacement of tires, a tire and durable, can not use a lifetime, some people work easily, the car use frequency is low, after several years of use a set of tires, tire tread surface is intact, but the performance actually tires will also increase with time and slowly aging, quality gradually if there is no reduction, understand this point, since that "looks good" is no problem that tyre is wrong.

　　Maintenance of tire tread, first clear the stone in the inclusions, check the tire will have no bubble, layer, laceration, die, variable aging failure; secondly in removing the tyre, rust and tubeless rims, check no damage or lining with wrinkling phenomenon, according to the provisions of the tire inflation pressure, or flange transposition. In addition, check the tire and wing plate, chassis floor, steel plate spring, mudguard and so on, there is no friction touch.

Battery

　　The battery is the key in the electrical system. In the car, a large number of electrical devices are used. The battery work is not normal, which will affect the performance of many devices. For example, in auto transmission, if the battery is not normal, it will not start the car. Therefore, a stable power supply must always be obtained.

　　When the level of the battery is checked, it is considered appropriate if the level is located between the 2 lines on the upper and lower levels. At the same time, the liquid level of each slot should also be checked. If the liquid level is insufficient, the lid on the battery can be unscrewed and poured into the liquid surface of the distilled water.

　　Check the terminal of the battery and use the iron brush to remove the pollution on the terminal. If the wiring clamp is seriously fouled, it can be rubbed along the inner wall with sand paper and grinding the dirt off.

Brake pads

　　Usually we use the brake lights on the dashboard as the basis for judging the brake shoes. But this is the bottom line. If it's changed at this time, it will be quite dangerous.

　　I want to remind you that although all vehicles have such a warning system, some of them are directly sensing the thickness of brake shoes. Some of them are completely worn out when the brake shoes have been completely worn out, so the brake fluid is extremely down, which will make the warning lights on. If the latter, until the warning lights, brake pad and the brake disc is in base metal iron sharpens iron state, then, will see the bright iron near the rim edges in the tyre. Therefore, in time to check into the plant maintenance brake can be used, and early life change close to the minimum brake, and don't believe the warning light.