What are the general steps of car maintenance? How often should I maintain it?

There are generally six steps to car maintenance:

1. In-depth maintenance of lubrication system.

The main function of the lubrication system is to effectively lubricate the various parts of the automobile engine to prevent excessive wear. Under normal circumstances, the car needs to be cleaned and maintained every 5000km and 10000km, and it needs to be cleaned and maintained once when the engine noise is too loud, the acceleration is weak, and the water temperature is too high. Clean the sludge and other accumulations inside the engine to avoid oxidation thickening of the oil at high temperature, reduce the wear of engine parts, prolong the life of the engine, and improve the engine power.

2. Cleaning and maintenance of the fuel system (i.e., cleaning the nozzle and valve carbon deposit).

Under normal circumstances, the car needs to be cleaned and maintained once every 10,000km-15,000km, or when you find that the engine is shaking, sluggish and poor acceleration, black smoke, weak and fuel-efficient. Remove gum and carbon deposits from the inside of the system to prevent harmful corrosion, avoid and stop leaks in seals and tanks, and replace old coolant completely.

3. Cleaning and maintenance of cooling system.

Under normal circumstances, the car should be cleaned and maintained once during the change of seasons in winter and summer, and once every 6 months to 8 months during normal driving, or once when the water temperature is too high, leaking, and boiling. Remove traces and limescale that cause engine overheating, prevent harmful corrosion, avoid and stop leaks in seals and water tanks, and replace old coolant completely.

Fourth, the cleaning and maintenance of the gearbox (automatic transmission gearbox).

Under normal circumstances, the car is cleaned and maintained every 20,000km or 25,000km, or when the gearbox slips, the water temperature is high, the gear shift is slow, and the system leaks. Removes harmful sludge and varnish deposits, restores the elasticity of gaskets and rings, smooths transmission shifts, improves power delivery, and completely replaces old automatic transmission fluids.

5. Cleaning and maintenance of power steering system.

The car needs to be cleaned and maintained every 40,000km and 45,000km, or in case of leakage of the steering difficulty system, it must also be cleaned and maintained once after replacing the power steering accessories. Remove harmful sludge and paint film from the system, remove steering difficulties at low temperatures, stop and prevent leakage of power steering fluid, remove steering noise, and completely replace old brake steering fluid.

6. Cleaning and maintenance of the braking system.

The car is cleaned and maintained every 50,000km, or when ABS reacts too early and too slowly, it is cleaned and maintained. Remove the harmful sludge paint film in the system, remove the danger of work failure at ultra-high temperature or ultra-low temperature, effectively prevent the brake fluid from deteriorating and expiration, and completely replace the old brake fluid.

Minor maintenance generally refers to the routine maintenance items done at the time or mileage specified by the manufacturer to ensure the performance of the vehicle after the car has traveled a certain distance. This mainly includes changing the oil and the oil filter.

Intervals for small maintenance:

The duration of minor maintenance depends on the oil used and the effective time or mileage of the oil filter. The expiration date of mineral engine oil, semi-synthetic engine oil and fully synthetic engine oil is also different for different brand levels, please refer to the manufacturer's recommendation. The oil filter element is generally divided into two types: conventional and long-lasting, and the conventional oil filter element is replaced with the oil, and the long-term oil filter element lasts longer.

Major maintenance refers to the routine maintenance of oil and oil filters, air filters, and gasoline filters at the time or mileage specified by the manufacturer.

Intervals for major maintenance:

Major maintenance is based on the existence of minor maintenance, and generally these two types of maintenance are carried out alternately. The interval varies depending on the car brand, and the specific details are subject to the manufacturer's recommendation.

The main reason for the formation of carbon deposits is insufficient combustion, which is related to driving habits, driving conditions, and fuel quality. Carbon deposits can form on valves, combustion chambers, pistons, injectors, and spark plug components. When the engine has a lot of carbon deposits, the engine will have the following symptoms:

Difficulties in cold starting, unstable idling, poor acceleration, rapid acceleration tempering or car breaking, excessive exhaust gas, increased gasoline fuel consumption, and increased oil consumption.

Effects of excessive carbon deposition in the combustion chamber:

1. The engine combustion chamber is the worst place in the working environment of the car, which is under high temperature and high pressure for a long time. Inevitably, carbon deposits also occur here, mainly from the pyrolysis of incompletely burned fuel. The carbon particles here are hard and pot-shaped, and in severe cases, they are honeycomb and have a certain thickness;

2. The carbon deposition here will affect the intake vortex, hinder the rate of flame propagation, and lead to a decrease in power, which will lead to engine knocking (commonly known as cylinder knocking), and even excessive pressure leading to combustion chamber breakdown;

3. Slight carbon deposition does not matter much, but carbon deposition in the combustion chamber is an accumulation process from slow to fast, so daily cleaning is very important.

4. It is difficult to start the vehicle in winter, and the engine shakes after starting, and even causes the engine not to start; There will be a lack of acceleration of the vehicle; Idle shaking of hot cars; the phenomenon of increased oil consumption; Every carbon deposit inside the engine will have a bad impact on the normal operation of the engine, and in severe cases, it will cause irreversible damage to the engine piston.

The commonly used methods are: dismantling and washing, hanging bottle cleaning, and fuel additives.

1. Dismantle and wash. This method is very direct and rude, but it is generally sent to the 4S store for disassembly, the disassembly of the engine is more complicated, no matter what parts will affect its performance more or less every time it is disassembled, you need to ask a professional master to disassemble. The carbon deposits in the engine can be seen directly when dismantled and washed, and the cleaning will be relatively clean.

However, the cost will be relatively high, and it will also require technology.

2. Hanging bottle cleaning.

This method is also relatively common, the hanging bottle is to discharge the cleaning agent into the air intake, dilute and soften the carbon deposit to turn it into a slurry, and then burn it from the cylinder to discharge. Generally, the cleaning objects include the intake tract, throttle, intake valve, fuel injector, cylinder inside, etc., but the effect is not as direct and obvious as dismantling and washing.

3. Fuel additives.

One of the causes of carbon deposition is that the fuel burns insufficiently, which adheres to various parts of the engine and forms carbon deposits over time. The main function of additives is to drill into the pores of carbon deposits with the help of strong surface activity, destroy their structure, and gradually dissolve these carbon particles from the metal surface, and then discharge them through exhaust gas after burning with fuel at high temperatures. Effective fuel additives such as PNF stock solution is not corrosive, can clean the whole oil circuit, fuel tank impurities, fuel tank moisture, high-pressure oil pump, built-in gasoline filter, fuel injector, piston top, intake valve, exhaust valve, long-term use has a good cleaning effect on the ternary catalysis, will not block the ternary, the safety is relatively high.

Change the oil, oil filter, air filter, the front two things must be changed every time you maintain, the general ordinary car can be maintained at 5000 kilometers, and the high-end ones can be maintained at 4000 kilometers.

How often should you do it between major and minor car maintenance? Major maintenance is generally done once every three years or 60,000 kilometers, and it is best to do all the items in the maintenance manual. Small maintenance is generally done once every six months or about 7500 kilometers.

There are few items, and it is basically to replace the oil filter.

"Minor maintenance" generally refers to routine maintenance items to ensure the performance of the vehicle, mainly including oil and oil filter changes and routine inspections. Car engines.

Lubrication is required, and oil lubricates, cleanses, seals, and cools. But as the car goes, the base oil in the engine oil.

and additives can deteriorate and fail, so in order to protect the engine, the oil needs to be changed regularly.

"Major maintenance" is relative to minor maintenance. In addition to the oil change, a third filter and spark plug need to be replaced.

The three filters refer to the air filter, the oil filter, and the gasoline filter. The filter is used to filter impurities, and the third filter plays the role of filtering dust in the air, sludge in engine oil, carbon deposits, and impurities in gasoline, respectively. In addition, after a long drive, the brake fluid needs to be changed.

Antifreeze, transmission fluid, timing belt.

and other key components.

The major maintenance of the car corresponds to the small maintenance: the car has a long maintenance interval, a long mileage, and many items, and a small maintenance interval is short, the mileage is short, and the items are few. Major maintenance is generally done once every three years or 60,000 kilometers, and it is best to do all the items on the maintenance manual, such as: five oils and three waters.

inspection replacement, generator and fan belt replacement, spark plug replacement, etc. , which is a very good opportunity for us to understand the condition of the car; Small maintenance is generally done once every six months or about 7500 kilometers. There are few items, and it is basically to replace the oil filter.

Most of the major car maintenance.

at 2-30,000 km or every two years. Different car brands, different driving environments, and different driving habits are basically related to the time and frequency of major car repairs. It is necessary for small partners to do car maintenance reasonably through the use of the car.

When the car has been driven for a certain number of years and kilometers, it needs to be maintained once. The maintenance method of major maintenance refers to the addition of some other items on the basis of minor maintenance, that is, in addition to changing the oil and oil filter element, it is also necessary to check and replace the antifreeze, transmission oil, and brake fluid of the vehicle.

and steering oil.

Major maintenance is generally done once a year, small maintenance is done once every three months, so that you can find the problem of the vehicle in time, to replace parts and accessories in time, ** is also completely different, large maintenance is generally about 700 yuan, small maintenance is generally about 200 or 300.

Major maintenance generally needs to be done once every three years, mainly to replace the tires and engine, and small maintenance needs to be replaced once every six months, and the gasoline and brake pedal are maintained.

Major maintenance must be done once a year, and small maintenance must be done once every three months or so, which will prolong the service life of the engine, make the car more valuable, and reduce the occurrence of traffic accidents.

The small maintenance of the car is generally done once every six months or once when it has traveled 7,500 kilometers, while the major maintenance is generally done after driving 60,000 kilometers or once every three years.

A regular item in car maintenance is to change the oil and oil filter. Different oil changes are available. The type of oil used determines the cycle of vehicle maintenance.

As we know, there are three types of motor oils: mineral oils, semi-synthetic oils, and fully synthetic oils. The replacement cycle of mineral oil is half a year or 5000 km.

The performance is relatively weak, and now very few cars are in use.

Mineral oil can be used in older vehicle engines. The semi-synthetic oil change interval is 8 months or 7,500 km. For cars with self-priming engines, semi-synthetic motor oil is recommended.

Of course, choosing a fully synthetic motor oil is the best. The change interval for fully synthetic oils is one year or 10,000 km, as fully synthetic oils are the best of the three and have the longest service life.

It is recommended for vehicles with turbocharged engines. It can provide better lubrication performance to the engine. Therefore, the type of oil you choose to use determines the maintenance interval of your vehicle.

Note that the interval time and the number of kilometers must be noted. As long as one item is reached, maintenance is required.

Although the maintenance time of the vehicle mainly depends on the oil change interval, maintenance is not only about changing the oil and oil filter, but also about checking the use of other wearing parts such as air filter, cabin air filter, which is recommended to be replaced once a year. Antifreeze, spark plugs, etc. need to be replaced according to the cycle. These are also an important part of ensuring the proper functioning of the vehicle and should not be sloppy.

5000 kilometers of maintenance or a year maintenance, if you don't have time, 10,000 kilometers of maintenance is okay, use good oil 5000 kilometers of maintenance or a year of maintenance, if you don't have time, 10,000 kilometers of maintenance is fine, use some good oil.

For new cars, it is recommended to replace the normal first warranty every 3000 kilometers or three months, and if it is a later maintenance, it is recommended to change it every 5000 kilometers or 6 months, or you can use a better oil to extend its own oil change interval.

Different models have different maintenance cycles, new cars are generally maintained at 3000-5000 kilometers, and the daily use of the car is relatively small, and it needs to be maintained according to the time, and the maintenance time can be selected according to the suggestions on the maintenance manual.

Under normal circumstances, new cars are maintained every 5,000 kilometers as required during the warranty period. After the shelf life, 7,500 kilometers can be maintained once.

The oil replacement cycle mainly depends on what kind of engine oil is used, fully synthetic engine oil is replaced for 10,000 kilometers, semi-synthetic engine oil and mineral engine oil are replaced for about 5,000 kilometers, but mineral engine oil is not recommended to be used, and it belongs to a relatively low-end type of engine oil. If your vehicle has not been replaced for a year, it is recommended that you replace it in time, even if you don't run enough kilometers, but the oil is also time-sensitive, and not changing the oil for a year will reduce the efficacy.