The auto repair plant will never tell us the three major mistakes of the Failover and driving

Maintenance considerationsWe usually take the air filter, fuel filter, and oil filter as three concerns. Since they are used as a filter, it is appropriate to change it if it is dirty. Many vehicles are maintained every 7500 km. During each maintenance, the maintenance personnel will suggest us change the three filters. While we love cars, we feel that people are really sincere and sincere towards us, So we change every time.
In fact, the three filters are changed once every 15000-20000 km, that is, maintenance is enough once after replacement. For air filters, the service life is always longer. Of course, it is no harm to the car to change the service. It also helps the repair shop to do more business. However, what we hate is that we may not always be able to buy good things. They will cut corners and only change two things at most. It is a common task to save empty filters, sometimes the steam filter is omitted. This is not enough to take advantage of it. It's just like editing yourself!

Maintenance 3 wash
In the cold winter, it is often difficult to get a car. It is likely that the throttling is dirty, but what they suggest you do is "three washes ".
Work started, First cleaning the inlet. The most popular nowadays is cleaning with "professional cleaning solution without removal", which is commonly known as "Bottle Flushing". This is both lively and nice-looking, and it makes people feel at ease. We usually have minor injuries and minor pain points. Don't we just drop a bottle at the hospital? Experience tells us that using a bottle is better and more effective than taking an injection. The living standard has improved, and the car has the same kind of treatment. Expensive Is a little expensive, but who makes it better?
Then cleaning the throttling, the carburetor cleaning agent is sprayed, and the dirt of the oil black is wiped down. You can see it and feel it. The effort is not in vain, and the hourly fee is one hundred RMB. But this is not much compared to the 300 yuan cleaning nozzle, although the nozzle-km cleaning once can be done.
After three washes, the problem disappears, but according to internal information, the problem can be solved as long as the throttling is cleared. Although the "Bottle" does not dare to say it is completely ineffective, it is definitely ineffective. The truly effective cleaning inlet is completely split, just like cleaning the range hood, and we don't have to worry about it. It's not too late to wash it over 0.1 million kilometers, in addition, the price for thorough washing is cheaper than that for hanging bottles, but it is troublesome for the repair worker.

Maintenance for spark plugs
Changing spark plugs is also common. The general repair shop will suggest you change the distance between two or 30 thousand kilometers, but the actual use of five or 60 thousand kilometers is no problem, some Japanese car spark plugs can even stick to 0.1 million kilometers. Or if you think the fuel consumption is increasing and it is difficult to drive the car, consider changing the spark plug. Here we will introduce a method that can save money: Buy a spark plug by yourself, just a few dozen yuan, expensive is only a hundred yuan, and find a medium-sized store, you can watch the installation with your own eyes for $1 or $20. There is also a greater benefit, that is, preventing repair shops from attaching half-new spark plugs removed from others' cars to your car.

Maintenance-Oil Change
　　
The repair shop also has a way to save money. Changing the oil is an opportunity. Generally, Jetta requires about 4.5 litre of oil, Fukang requires at least 3.2 litre, and Alto requires about 3 litre. The standard is to add the oil to the upper limit of the oil scale bend area.
　　
However, even if you see the maintenance worker Add the oil to this position, it is not necessarily visible. Just like magic, what he sees and what you believe must have been prepared first. His preparation work is to let out the old oil. For example, Jetta usually only releases 4 liters of oil, which saves us the second half of the upgrade when new oil is injected. Who makes us unable to take the remaining oil away.
　　
For other car faults, the diagnosis of the repair shop is more difficult to identify. We won't be able to deal with it unless we are old and old.

 

Four-wheel positioning for general maintenance
　　
This seems to be the specialty of every repair shop. Four-wheel positioning is to adjust the front and rear wheel beam angle, the outer angle and the back angle of the main pin, the internal angle of the main pin, and so on. A good math person can calculate it. Four-wheel positioning requires at least six adjustments. However, the repairer's arithmetic operations are average, because 90% of the repair shops only tune us-the front corner of the front wheel, and the rest will be omitted. If you have a good acting skill, you will also be watching it carefully. The performance near the rear wheel is like a piece of something that Charlie just scratched in front of the big machine but didn't screw it. As a result, four-wheel positioning is implemented in 10 minutes. You will surely think that they are doing a lot of work to collect less money. What are the results? In October, we lost our money and made some money for others.
　　
Now, we understand why the four-wheel positioning of major and minor car repairs has a price gap from 3, 50 to more than three hundred. The simple supervision method is not to look at how the master's wrench is screwed, but the computer screen. If we don't understand the many terms and data above, we can understand the words "OK. When a wheel angle is adjusted, the data will become green and "OK.

 

Brake System for general maintenance
　　
The brake problem is also urgent. Generally speaking, the replacement frequency of the brake pad and the brake disc should be, that is to say, every two replacement of the brake pad for a brake disc. If the repair shop insists on changing the brake disc for you every time, then he simply wants to sell more than 1000 yuan of brake disc.
　　
When an alarm is triggered on the ABS system of the car, we will be nervous. In fact, ABS itself may not be faulty, but there may be small problems around it, such as wire head welding, virtual welding, circuit problems or dirty parts. These problems are easy to check and eliminate. Sometimes the sensor is broken, so you can change the sensor to a value of more than 100 yuan. Never change the ABS assembly. It will cost a thousand RMB.

 

General repair-Chassis
　　
On the chassis, the shock absorber is a component. If the shock absorber has abnormal sound, the repair shop will want you to change the shock absorber. In fact, the first thing to check is the pressure bearing's seat, which is highly likely to be deformed. As long as the shock absorber does not leak oil, more than 90% of the cases do not need to be replaced.
　　
Nowadays, it is very popular to seal the chassis. Plastic sealing can effectively protect the chassis and achieve the purpose of anti-corrosion, anti-rust and anti-collision. However, advanced cars such as Mercedes-Benz and BMW, as well as many current FAW-Volkswagen and Shanghai Volkswagen cars, provide sound chassis protection measures when leaving the factory. Another suggestion is that you block these cars. The Japanese and Korean cars can be sealed. The materials used for plastic sealing should be rubber resin materials. The store that has a hand will use materials such as asphalt to cheat the car owner. What you do is "car damage measures. Currently, the market price of the plastic block is between-RMB, which is too cheap or too expensive. Please think twice.

 

General Maintenance Engine
　　
The engine is the heart of a car. People who do not know the car are very afraid of the car's "Heart Disease". If the car is blue smoke, it is a bad thing. Deliver to the repair shop, people say the engine has to be overhauled, we have to hand over the car to them. But what they do may be just to deal with the aging of the valve oil seal, piston ring wear, jamming and other small problems can be solved. If the city is running normally, the engine overhaul will wait until 0.1 million-0.15 million km later, and the car may feel exhausted and unable to lift the speed.

 

Other Tips
　　
The repair shop also has a way to make money and hide its ears and ears, that is, to play games at the price. We need to repair the car, but we can't help but compare the three products. This ratio shows that the price is quite different. In addition to the above mentioned, there are also other reasons for the reduction in repairs at a low price.
　　
For example, if you want to change a water pump, the price of some places is 220 yuan, and that of some places is only 180 yuan. After you finish the shop with the bid of 180 yuan, he asks you for 280 yuan. His explanation is that the timing belt needs to be removed from the water pump, and the belt removal fee is 100 yuan. When you look at the quote, this item is truly speechless. In fact, the labor cost of this belt removal should be included in the labor cost of the water pump change. He will separately quote the price, that is, to attract people who do not pay attention or do not know how to do it and are greedy and cheap. As a result, we spent a lot of money not to mention, and the feeling of being cheated also needs to be digested for several days alone.

 

Against JS tips
　　
1. Do not be self-righteous when you arrive at the repair shop. Don't take the initiative to say "give me another XXX ".
　　
2. Just like buying food in the morning market and bringing a Spring scale to air tires, bring a tire pressure gauge-their pressure gauge is rarely accurate. If you eat less than two mouthfuls and lose weight, the tire pressure is abnormal and your life will be hard to maintain.
　　
3. If parts have been replaced during maintenance, you should retrieve the old parts and drop them into your own garbage bin, which is better than staying in the repair factory. At least 50% of the parts that have been replaced by the repair factory are useful. You can use them for others or for others.
　　
4. It is best to be careful about all kinds of additives sold by people outside gas stations and maintenance sites. Quality is not good, quality is not necessarily effective.

 

Novice car repair and slaughter
　　
As more and more young people join car owners, drivers will only drive cars and will not repair cars. Anshan Consumer Association recently analyzed consumer complaints and found that, due to the unfamiliar knowledge of auto repair, it is already common for new users to repair vehicles. In particular, the following three moves have caused a lot of losses for new users.
　　
One trick: the second-hand car inspection was "fooled ". For many car owners who buy new cars, after buying a car, they basically have to go to the repair shop for repair, and this step is easy to "Slaughter ". For example, the flameout fault after the emergency brake may be due to the fault of the relay. The repair cost is only several dozen yuan, but if the vacuum tube is broken, it will take several hundred yuan for the repair. Professionals suggest that important components such as the engine should be removed as much as possible, and random inspection may damage their original cooperation status, but shorten their service life.
　　
Second TRICK: attach factory parts as original. One of the most profitable moves in the auto repair industry is to use factory accessories as factory accessories. some spare parts cannot be identified by professionals, making it easier for new users to pass through. In addition, there are very few car owners who can be on site during maintenance, and there are no outer packing and three-pack certificates. Therefore, even if there are fake or shoddy accessories, it is hard for the car owner to know.
　　
Three moves: long line fishing for regular customers. There is a lot of competition in the auto repair industry. Some car repair plants have also made great moves to attract regular customers. A very small number of car repair plants may put sugar or salt in the gearbox when repairing the car, and then tell the car owner that the engine or gearbox may have problems. A few days later, as soon as the problem arises, the new car owner will be convinced that the Repair Engineer will inevitably be "Slaughter ".

 

The following describes the three most common mistakes:

Misunderstanding 1: Does "pull high speed" mean high speed or high speed?

I believe these words are no stranger to any driver. High-speed pull, generally refers to the new car to go to High-Speed pull a car after the cycle. The purpose of this operation is to allow new pistons and camshaft in the engine to work quickly for the first time, so that they can have better contact with each other. Another is to let the variable speed gear in the gearbox try to rotate at high speed, so that the bite between the brand new gear and the gear is smoother. By pulling high speed, you can make your car have good motivation and smooth shift in the future.

When traffic conditions permit, the maximum gear is mounted to 140 km/h or even higher. This cannot be a high-speed pull. At best, it is a high-speed drive. This not only fails to achieve the significance of high speed, but also wastes gasoline.

As the gear increase, the engine speed will decrease. When the vehicle is mounted to the Top Gear, if the vehicle speed is at 100KM km/h, the engine speed is roughly-rpm. The piston working condition in the engine is working normally with the maximum gear in the gearbox when the gear is in the highest gear position, without allowing them to do work quickly.

The true significance of high speed is to pull the high speed of the engine. Pull the speed of each gear to more than 5000 rpm, so that the piston and gear can try to work at high speed, to achieve the significance of high speed.

It should be noted that when the speed is increased, when the speed of each gear bit reaches the extreme, it must be blocked. You cannot drive at a high speed in a gear position for a long time. Otherwise, the water temperature will rise rapidly and the engine will hold the tiles inside. High-speed pull is beneficial to vehicles, but improper operations will also be counterproductive. In addition, security should be put at the first place during high-speed pulling.

Misunderstanding 2?

A self-integrated car allows drivers to experience the pleasure of manual shift and enjoy a comfortable driving experience with an automatic shift.

You can switch between them at any time during driving. You only need to push the drive from the drive D to the manual drive without stopping.

Why? The principle is simple. The traditional gearbox changes the gear ratio by attaching gears of different sizes. The Gear Block of the automatic transmission is a simulated Gear Block. The so-called manual gear block is essentially an automatic gear.

The computer automatically adds or removes Blocks Based on the speed and speed of drive D. When driving in manual mode, the gearbox computer only needs to determine the gear at that time, instead of automatically adding or removing blocks for the car. It's nothing more than the automatic shift function. It's done manually.

Misunderstanding 3: Do anti-wear agents need to be added during the running-in stage? Is it a waste of money to add high-speed fuel additives without running?

A large number of anti-wear agents, fuel additives, and other items are helpful for long-lived vehicles. But some friends who have just bought a new car are afraid of Engine Wear, and they have added Wear Resistance agents to the car.

When the new car is still in the running-in stage, it is added with a wear-resistant agent. How should we break in? The engine is working with metal components and has good oil lubrication.

New cars with wear resistance is not only useless, but also during the break-in period due to incomplete break-in caused by engine speed failure and other phenomena.

At a gas station, you will often find people who recommend fuel additives of various brands for you. Their additives can save fuel for vehicles and clear the carbon deposits of fuel injection nozzle. These advantages exist, but the premise is that you must run high-speed to maximize the effect.

It is normal that the fuel consumption of a vehicle is slightly high during the service period. Do not add these additives because of low fuel consumption. In addition, when the vehicle is running at a high speed, the driving speed is itself the most fuel-efficient. Don't say there is no carbon accumulation in the fuel injection nozzle of the new car, that is, the carbon accumulation can also be used to increase the fuel injection speed and self-cleaning.

These auxiliary additives can be used to clean the fuel injector carbon due to the accumulation of driving mode. Additives do not make any sense for new cars that do not have serious carbon deposits.

There are still many mistakes in our daily driving. The above three points are the most common. If you have any of these mistakes, I hope this article will provide you with reference.