What items don't have to go to the 4s shop when doing maintenance on the car?

Not long ago, we mentioned a friend's consulting and maintenance problem in the program. There is a lot of information in just two pages, and most people must look puzzled after reading many projects.

Fortunately, we found many tricks in time and helped our friends who almost fell into the pit. So let's talk about these maintenance projects today. What are the supplements? !

First of all, introduce the basic situation of the car: Volkswagen C-TREK (parameter | picture) 1.6L automatic comfort type, with a car age of 2 years and a mileage of 29,000 kilometers.

According to him, this time I came to the 4S shop owner to do the daily maintenance of the oil filter. What does the 4S shop suggest him to do?

Ahem, repeat after me in one breath: oil filter, brake oil, antifreeze, air conditioning evaporation box cleaning, combustion chamber decarbonization, throttle oil circuit cleaning, lubrication system cleaning.

Plus working hours, the total price is more than 2500 yuan. That's not all. The 4S shop also suggested that the next maintenance should be after half a year or 5000 kilometers ... I don't know what you think after reading it, but I think after reading it.

How embarrassing!

All right, calm down. Say it one by one.

1. Change engine oil and machine filter.

This is no problem. The mechanical filter used for oil maintenance must be replaced. Although it is not SN grade, the material cost of mechanical filter screen is only 240 yuan, which is not high. Oh, by the way, my friend doesn't know the grade of oil. Click the link to make a quick tutorial.

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80% of the market is high imitation oil? How to choose engine oil? The wrong engine is scrapped at any time.

It should also be noted here that this 4S shop recommends a 6-month or 5,000-kilometer warranty. In fact, according to the maintenance manual of this garage, except for the first 5000km, all other 10000km can be guaranteed.

Therefore, SM-grade engine oil provided by 4S shop can be completely used here. However, if your use environment is poor, it is recommended to replace the advanced oil.

2. Brake fluid

This is very unnecessary. According to the maintenance manual, the manufacturer suggested changing the brake oil every 60,000 kilometers, and this 4S shop changed it for friends in less than 30,000 kilometers. The suspicion of excessive maintenance is very high.

Of course, this should also be decided according to the actual car condition. If a person's brakes become soft or can't stop when using a car, it is mostly because air seeps into the oil circuit, or even the brake pipe cracks or breaks. In this case, the accessories and brake oil need to be replaced.

3, antifreeze

The water pump in the water tank circulates antifreeze to help the engine dissipate heat. If there is too little antifreeze or leakage, the engine temperature will be too high, and the engine cylinder will be scrapped seriously. Therefore, antifreeze is also a part that we need to check during maintenance, which is very important.

But is it too cautious to replace your 4S shop with someone within 30 thousand kilometers? According to the manufacturer's maintenance manual, it is also recommended to replace antifreeze about 60 thousand kilometers. So, this maintenance, check whether there is liquid shortage and whether the freezing point is up to standard. If there is a problem, can't it be replaced?

4, air conditioning evaporation box cleaning

This is actually not part of the daily maintenance, but it is also very important. For example, we often use cars in harsh environments such as smog and dust, which can easily lead to bacterial growth in evaporation boxes and air ducts. When the internal circulation is started, these bacteria blow into the carriage with the air duct, which affects our health.

In view of this, I suggest that you clean the air conditioning duct and evaporation box once every six months when the seasons change. It is best to buy a black carbon filter screen that prevents PM2.5, so the 4S shop helps friends clean the air conditioning system. in fact ...

Wait! 380 yuan is the air conditioner disinfectant! ? This kind of cleaning machine ranges from dozens to more than one hundred, so you can operate it yourself if you clean it.

5. Carbon removal of combustion chamber and throttle oil circuit

These two points belong to the same category, and the purpose is to remove carbon.

In other words, carbon deposition has little effect on cars, and it is generally more important for old cars or turbine cars over 50 thousand kilometers. In fact, there is absolutely no need to build a 30,000-kilometer new car.

And what I want to say is that these two items add up to nearly 1000 for light materials, really. In addition, from the man-hour quotation, these cleaning should be just ordinary hanging bottles cleaning, rather than better "coal digging" cleaning (it is estimated that nothing can be dug).

6, lubrication system clean

This is also over-maintenance! Generally speaking, the engine oil we buy contains clean ingredients. If we maintain it regularly and use high-quality engine oil, we don't have to worry about the oil circuit.

However, there are several special situations, such as long-term maintenance, harsh use environment, and long-term high-temperature operation of the engine, which may cause oil emulsification. These impurities will cause oil blockage for a long time.

However, in this case, the oil pressure sensor will give an alarm in advance, and it is useless to add detergent at this time. It is necessary to remove the engine for maintenance and cleaning.

7. Summarize some points.

After reading these, I still have some doubts. No wonder people in the industry once said: you can lose money by selling cars in the early stage, and you can definitely earn it back by later maintenance. It is really a truth to combine the representative maintenance of this small partner.

Moreover, as most small partners who don't know much about cars, we still have to go to the 4S shop for routine maintenance during the warranty period of 3 years or 60,000 kilometers. Worried about the risk of maintenance outside, on the one hand, on the other hand, many 4S stores stipulate that if you don't repair in the store, you will bear the consequences of the problems that arise during the period.

These two points have actually made many consumers helplessly become "lambs to be slaughtered".

8, can't help but say

What I want to say here is: As a consumer, it is also our right to bravely say "no" to the 4S store, read the maintenance manual carefully after buying a car, and make reasonable demands on the 4S store according to the manual.

On the other hand, in fact, the maintenance manual is an achievement made by the manufacturer for this car and combined with the national car environment, which is relatively conservative.

Of course, as long as there are no special conditions in our car, there is no problem in maintaining it according to the instructions. Don't always listen to the so-called professional advice of some 4S shop staff.