Can you tell the difference between before and after car maintenance

According to the maintenance period, car maintenance is divided into two categories: regular maintenance and unscheduled maintenance.

a. Regular maintenance includes: daily routine maintenance, first-level maintenance, second-level maintenance;

Purpose: The car is composed of tens of thousands of parts, and the performance of various functional components (including lubricating oil) will gradually decrease due to wear, aging, corrosion and other factors. Under normal vehicle driving, this change gradually occurs in many parts.

Because no car is used exactly the same, it is impossible to predict that every part will wear and age the same.

For this reason, the factory prescribes a certain inspection interval to adjust and replace components that can be expected to change over time or with use, which is called "regular maintenance". The aim is to restore the vehicle's performance to its best condition, to prevent small problems from becoming major problems, to ensure the safety of the vehicle, as well as to achieve optimal economy and a long service life.

The above aspects are embodied in the "User Manual", so my consistent insistence is not to put it at home as a cultural relic, and there are detailed instructions on it.

b. Non-scheduled maintenance includes: run-in period maintenance, seasonal maintenance and beauty care.

The usual car maintenance is mainly from the work of maintaining the good technical condition of the car and prolonging the service life of the car. In fact, it contains a wider range of content, not only to carry out normal maintenance of the items specified in the "user maintenance manual", but also to the relevant components (according to the mileage) in turn of some "repeated" inspections, for example, the brake may be specified in about 1w kilometers for maintenance, but when driving 20,000 or even 30,000 kilometers, it is still necessary to go back to carry out "multiple repeated maintenance inspections", especially for the parts of the car that involve more safety.

Therefore, find the problem, solve it in time, and do not leave any potential safety hazards to ensure the safety of people and vehicles. Compared with the above regular maintenance, this item occupies more "mobility", and the owner should also develop good car habits. . .

Car Beauty Care The exterior and interior of the vehicle.

Vehicle appearance maintenance is also commonly known as car beauty. The main purpose is to remove all kinds of oxidation and corrosion outside and inside the car, and then protect them to highlight the "beauty" of the car as much as possible. It mainly includes:

Car paint maintenance, cushion carpet maintenance, bumper, skirt maintenance, instrument panel maintenance, electroplating processing maintenance, leather and plastic maintenance, tire, wheel warranty, windshield maintenance, chassis maintenance, engine appearance maintenance, etc.

Diagnosis and treatment of deep scratches, repair of multi-material bumpers, repair of hard injuries of wheel hubs (covers), refurbishment of leather and chemical fiber materials, refurbishment of engine colors, etc.

You have to say that the vehicle cycle maintenance, is nothing more than to change the three filters, change the oil, do some routine inspections, these maintenance is necessary, to distinguish these replacement parts can be checked, the old and new is the naked eye dream enough to see, find a car or a master, there is no problem.

Car inspection and maintenance are not the same. If you are just in time for maintenance, you will first maintain and then inspect the car, so that some problems can be found and solved during maintenance, such as emissions, lights, etc., and the car inspection will be less troublesome.

Annual inspection of vehicles. This is what we usually call a car inspection.

After maintenance, the owner of the car can press the steering wheel.

on the maintenance button to reset. The specific way to use it is to first adjust the vehicle's instrument panel to the maintenance mode, and then press and hold the OK button on the steering wheel for 3 seconds. The reset is complete.

During the use of the vehicle, the oil will be lost, and the antifreeze will be at the same time.

Attrition can also occur. When the oil is low, the parts inside the engine begin to engage in dry rubbing. Insufficient antifreeze can cause the vehicle's engine to become hot. At the same time, long-term combustion in the cylinder will start to cause carbon deposits.

Carbon deposits can cause engine chatter while the vehicle is in motion. At the same time, it will also significantly reduce the service life of the engine. Therefore, the vehicle must be maintained.

Vehicle maintenance is mainly about adding fluids and replacing parts that have been damaged. After the owner has completed the maintenance, he can manually reset the maintenance button.

Summary. 1. Inquire about the accident records of the vehicle condition offline.

If you want to check vehicle accident records and maintenance records offline, you can go to the 4S store to check it. Bring the owner's identity certificate, car purchase invoice and other vouchers to the 4S store to find after-sales, and they will help bring up the car's maintenance records.

2. Quickly check the accident records of vehicle conditions online.

The accident records and maintenance records of the vehicle are not with the car, and each maintenance of the vehicle will leave information in the store for archiving. Even if the vehicle goes to other 4S stores, you can check the repair and maintenance records of the vehicle. Just follow in Alipay:

Vehicle remittance check, you can query the vehicle's accident records, maintenance records, accident records and other information. This is much more reliable than simply checking the knock on the maintenance manual, because the probability of falsification of the archived records of the 4S store is close to zero.

How to tell if a car has been maintained.

1. Offline inquiry of vehicle condition accident records, if it is an offline inquiry of vehicle accident records and maintenance records, you can go to the 4S store to inquire. Bring the owner's identity certificate, car purchase invoice and other vouchers to the 4S store to find after-sales, and they will help bring up the car's maintenance records. 2. Quickly check the vehicle condition accident record on the Internet, the accident record and maintenance record of the vehicle are not with the car, and every time the vehicle is repaired and maintained, it will leave information for archiving in the hail and dismantling shop.

Even if the vehicle goes to other 4S stores, you can check the repair and maintenance records of the vehicle. Just pay attention to Alipay: car exchange, and you can query the vehicle's accident records, maintenance records, accident records and other information.

This is much more reliable than simply checking the knock on the maintenance manual, because the probability of falsification of the archive record of the 4S store is close to zero.

How to tell if a car has been maintained.

I sent the car for maintenance yesterday, and I came to pick up the car today, how do you see if it has been maintained?

You can look at the year of his car, and then see if the parts in his car have been moved, and if they have been moved, it means that they have been maintained.

Hello, my experience is that first of all, we must pull out the oil dipstick to see if the oil is clean, and open the air filter with a screwdriver to see if it is clean.

As long as it is 4S, every maintenance of the vehicle will leave computer data in the store for archiving.

Even if the vehicle goes to other 4s, as long as it is a subordinate 4s of the same brand, you can check the repair and maintenance records of the vehicle. This is much more reliable than simply checking the pins and seals on the maintenance manual, because the probability of falsification of the archived records of the 4S store is close to 0.

When the time is up, the number of kilometers is not enough, whether the maintenance should be done, there is no conflict between the two, no matter which one comes first, you have to do maintenance. In addition, even if the car is often parked and not driven, it must be done when it is time to do maintenance. Usually drive the car out and run every once in a while, otherwise the battery will lose power, or the tires will be deformed.

If the car is not maintained for a long time, there will be safety hazards.

1. Oil deterioration

If the vehicle is not serviced for a whole year, the engine is a big problem, but the problem here is not the damage to the engine itself, but the deterioration of the engine oil that affects the function of the engine.

2. Machine filter deterioration

It can filter the sediment and metal impurities in the oil, and provide clean oil to various parts, if it is not replaced for a long time, it will clog the oil filtration system, resulting in poor engine lubrication and accelerating engine wear.

Generally, the fourth maintenance is about 20,000 kilometers, usually in addition to the normal three filter replacement, but also to change the engine oil, steering oil, brake oil, air conditioning filter, etc. Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting or replacing certain parts of the relevant parts of the car, also known as car maintenance.

The inspection of the whole car oil and water and filter element, the inspection of chassis parts, the inspection of brake pads, the inspection of lights, the inspection of the steering system, and the inspection of tires on the car.

1. Check against the environmental inspection sheet. Check whether the paint surface is scratched, whether the interior is damaged, whether the oil in the engine compartment cover is up to standard2, and check the contents of the car. When repairing the car, the repairman may take out the contents of the car and put them back.

Cars, like people, will have problems after a long time, and there are usually the following signs.

1. The color of the exhaust smoke is abnormal.

Normal car exhaust should be colorless and odorless. But if the exhaust gas is discharged.

White exhaust gas: It may be that the engine cylinder gasket is worn, creating a gap and causing a large amount of water from the heat dissipation system to enter the combustion chamber. Water cannot be burned, and when heated, water vapor is generated, which is discharged directly from the exhaust pipe.

Black exhaust gas: It may be that there is a lot of carbon deposits that need to be cleaned up, or it may be that the oil is too poor or the ignition system is faulty.

Blue exhaust fumes: Blue smoke is mostly caused by internal engine faults, which cause oil to escape into the combustion chamber. Overfilled oil can also hinder the proper functioning of the crankshaft arm, allowing it to do extra work and increase power consumption.

Oil usage should be checked regularly.

2. Sudden change in working conditions.

The working condition of the car is suddenly abnormal, such as the engine suddenly turns off and then it is difficult to start, or even cannot start; The engine power suddenly decreases during driving, and the driving is weak; Sudden braking failure or mistracking, or even failure while driving.

3. Oil leakage refers to the leakage of fuel, engine oil, brake fluid and other oil in the automobile engine.

The method of inspection can be to see whether there is an oil stain on the ground after the vehicle is parked for a long time, or regularly open the engine cover to check the condition of the inside of the engine compartment, and the oil stain indicates that the engine has an oil leak. At this point, it's time to do a car overhaul.

4. The appearance and posture of the car are abnormal.

The car is parked on a flat field, check the appearance condition, if there is a horizontal or longitudinal skew, etc., it is abnormal appearance.

The reason is mostly the failure of the frame, body, suspension, tires, etc., which will cause failures such as unstable direction, deviation, shift of center of gravity and tire eating of wheels when driving. At this point, it's time to do a maintenance.

5. There is a peculiar smell in the car.

When you smell an unknown smell while driving, you must stop first to find the source of the odor to avoid greater losses.

The smell here is some gasoline, burnt smell. The smell of oil indicates that there is a leak in the oil circuit or that the evaporative carbon canister has failed. The burnt smell may be caused by brake lag, clutch slippage, short circuit, etc., so be sure to stop for inspection.

6. The engine overheated.

Generally, after the engine is working normally, the temperature is maintained between 90-105 degrees.

If the water temperature is too high and the high temperature alarm light is on, you should go to the relevant store for maintenance immediately.

7. Uneven tire wear.

The tires are the only contact between the car and the ground, with various set parameters, and in order to achieve all aspects of performance, the wheels need to be adjusted before being installed on the car. As soon as the parameters deviate, the wheels will suffer from uneven wear.

On the other hand, if one of the tires wears out particularly quickly, the suspension system must need to be adjusted.

In a word, in the above situation, it is best to drive to the repair shop for maintenance.

The car is routinely maintained every 5,000 km, and the oil and oil filter are changed1, 5000 km: the oil filter is changed.

2. 10,000 km: replace oil filter, air filter, gasoline filter 3, 15,000 km: replace oil filter, air conditioning filter 4, 20,000 km:

Replace the oil filter, air filter, gasoline filter 5, 25000 km: change the oil filter.

6. 30,000 km: replace the oil filter, air filter, air conditioning filter, gasoline filter 7, 35,000 km: replace the oil filter.

8. 40,000 km: replace oil filter, air filter, gasoline filter, brake oil, and steering oil.

9. 45,000 km: replace the oil filter and air conditioning filter Km: replace the oil filter, air filter, gasoline filter Km: replace the oil filter.

Kilometers: Precautions for replacing oil filter, air filter, air conditioner filter, and gasoline filter:

1. Gasoline filters and air filters are replaced every 10,000 kilometers, while air conditioning filters are replaced every year or about 20,000 kilometers.

2. At 40,000 kilometers, it is necessary to change the oil of the whole car.

3. Check the gearbox every time you maintain it, although you don't need to change the oil, you should check the amount of oil in the gearbox regularly, and you should not replace the non-original oil without permission.

4. Check the spark plug every 40,000 kilometers, and replace the spark plug when it is 80,000 kilometers.

The maintenance requirements of the car are 5,000 kilometers a maintenance, but if you use it in a good state, it will only need to be maintained for 10,000 kilometers at most, which is no matter what problems the car has? All are to be maintained.