Monday, June 29, 2020

Maintenance after returning from driving

In the following, we will prompt the car owners to return to their homes for a variety of complex road conditions, and then carry out targeted key maintenance on their cars.

1 Return from a short drive

Maintenance focus: thoroughly clean the vehicle

Reminder: For short-distance self-driving, it is necessary to pay attention to the impact of the rainy season, and the damage caused by wild bird droppings and insects to the car paint and car glass.

A technician at a car repair shop said that first of all, the slime left after the impact of bird droppings and insects is the killer of the paint. Owners should not clean these stains so carelessly because of the trouble of car washing. Because these things are very sticky, if you force them off, it is likely to leave scratches on the car paint.

Secondly, because many hidden places may contain dirt such as sand and stones, it is easy to scratch the paint surface if not cleaned in time. The sealing strips of the windows are all dead spots for dirt and dirt, and the owner should pay more attention when washing the car.

2 Returning on a long-distance drive

Maintenance focus: pay attention to the braking system

Reminder: For mid- to long-distance self-driving, the tires and brake pads may be the most worn.

The tire is an important part of the inspection after returning from the drive. The owner can clean the larger stones in the tire pattern after his free time. These seemingly inconspicuous stones are likely to cause the tire to bulge or burst. The tire pressure also needs to be noted. The local weather of self-driving tour may be different from the local weather, and the tire pressure can be adjusted appropriately.

3 Long-distance self-driving return

Maintenance focus: pay attention to the replacement and addition of oil

Reminder: There are also many problems to be aware of when traveling by long-distance self-driving cars. The first is that the loss of various oils is relatively serious.

Engine oil, glass water, brake fluid, antifreeze, etc. should be filled in time, and maintenance is required if necessary. In addition, the self-driving trip will pass through the road section with a relatively bad environment, and the air filter device is preferably replaced. Owners who have walked a lot of rough roads will need to add one more item when they come back, that is, four-wheel positioning, so that they can avoid the symptoms of car shaking caused by unstable four-wheel driving in the future.

In addition, long-distance self-driving tours often have to drive at night, which consumes a lot of battery power. Should check the battery power is sufficient, whether the lights are intact, the meter display is normal, etc.

4 Returning from the mountain village by car

Maintenance focus: pay attention to the inspection and maintenance of the chassis

Reminder: First, pay attention to the chassis and brakes. If you go to places with steep roads and more uphill and downhill slopes when you travel by car, especially in mountainous areas and some rural roads, the brakes are most likely to wear and consume. The bumpy road may also cause some parts of the chassis to be deformed, and slight bumps may cause slight leakage of the oil pan, etc. These are difficult to find in time by the owner's own detection. Also, after driving on a bumpy mountain road, respond to the direction and suspension system, various rubber products linking parts (such as engine foot, tooth box foot, balance bar rubber sleeve, center bushing, triangle arm rubber sleeve, shock absorber) Check the rubber sleeve, etc., and find that the rubber parts are torn or damaged, and they should be replaced in time to avoid related early wear and damage in the future.

The last step is to clean the engine oil circuit. The quality of the oil varies from region to region, and even some of the oil quality is unqualified. The addition of such oil products has caused great damage to the engine and the oil circuit. If low-quality gasoline is used, on the one hand, the engine will produce knocking and noise; on the other hand, it will easily make the three-way catalytic converter fail. At this time, the engine will often show weakness and increase fuel consumption, which will seriously damage the internal parts of the engine. If the above situation occurs, it is best to go to the after-sales service station to drain the oil, and then add some additives to clean the oil circuit for maintenance.

5 Return from driving on icy roads

Maintenance focus: check the water tank and paint surface

Reminder: Because the car often walks on the snow, the mud, snow and ice water splashed on the body and the chassis. If it is not cleaned in time, it will cause serious corrosion to the car paint and the chassis of the car. Washing the car immediately after returning will cause damage to the car. To good protection. At the same time, if driving on ice, snow and muddy roads for a long time, mud and other dirt will easily adhere to the chassis. At the same time, some sand and stones that constantly hit the chassis will also destroy the protective layer of the chassis, so the possibility of the chassis being rusted is greatly increased. . The inspection content includes whether the transmission parts and suspension parts are loose or damaged, such as the corrosion inspection of the transmission shaft, half shaft, half shaft dust jacket, suspension, shock absorber, ball head and chassis.

In addition, the condition of the water tank should be checked for leaks and the front of the radiator is clean. Also the condition of the brake hose, whether there are scratches, aging cracks. Since the brakes are frequently used in rain and snow, check whether the brake pads and brake discs are excessively worn and abnormal, and the foreign objects caught must be removed in time. Please pay attention to check the clutch condition for manual transmission.

Also check the vehicle's oil and water readings and quality. Because driving in rainy or snowy weather consumes more wiper water, please observe whether there is a significant reduction and whether it needs to be added. If the oil and water quality deteriorates, it should be replaced. Also check whether the engine oil has some sequelae caused by freezing, such as condensation and turbidity. If so, please replace it in time.

In addition, some vehicles are equipped with snow chains on icy and snowy roads. Some of the snow chains of some vehicles are not firmly fixed, which may interfere with the suspension system and the braking system. After returning, find hidden dangers and eliminate them in time.

6 Returning from driving on wading roads

Maintenance focus: check the electrical system and air filter

Reminder: Check the electrical system after wading, including the lights. Immediately after returning, remove the covering of the electrical part, dry the wet water part, and install the fan belt. Check whether each gear box is submerged in water, whether there are drifting objects between the radiator fins of the water tank, whether the tires are damaged, whether there is any water grass under the chassis, etc., clean the vehicle in time and restore the braking effect. Don't try to start the circuit system, engine components and other parts before entering the water, so as not to cause greater losses.

Finally, check the vent at the spare tire location. The spare tire of many family cars is located in the depression under the floor of the tail box. This position is not completely sealed, and there are usually several vents that communicate with the outside. If the depth of accumulated water reaches the height of the spare tire position, the accumulated water will enter the tail box from the vent, and then flow into the rear seat, soaking the seat cushion to induce mildew. The inspection after the vehicle is wading should not only focus on the front of the vehicle, but ignore the rear of the vehicle.

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