A summary of daily car use problems of the Mercedes-Benz E-Class, which is convenient for others and yourself.

It has been more than five years since the new Mercedes-Benz E was launched. People say it is a Mercedes-Benz that cannot be repaired. As expected, there will definitely be various problems. I think whether it is an imported car or a domestic car, in fact, any car model will have more or less different problems. Some car owners do not understand how to use and operate them, some problems are isolated phenomena, and some are common problems, but problems must be solved, especially problems that affect driving and driving safety. Many of the problems reported by car owners have been solved by mutual research, and some have been solved by 4S shops. Although they have been solved, they are still relatively complicated and not simple enough, so I thought of a good method! Today we will write a summary post on daily car use problems, and we will continue to update it in the future. There must be some incomplete articles. Dear car friends, please bear with me. It just so happens that you can also show off your skills and find out about your daily car use. If you have any problems and how to solve them, please follow up in the comments below the post so that more new and old car enthusiasts can learn and refer to it. In the future, you will no longer have to worry about using the car. If any problem arises, just find the solution in the post. It is convenient for others and yourself!

Solution: Many car owners know how to drive, but they still don’t understand many functions. It’s too tiring to read the manual, so here are a few pictures to help you understand it in detail:

Solution answer: A picture will help you understand

Solution answer: There are Mercedes-Benz E-Class owners He left a message saying that his car recently found that the impact became more and more severe when downshifting from 3rd gear to 2nd gear. What is the problem and what should I do? The first thing I want to say is that Mercedes-Benz's downshifting is usually obvious in the process of 4 down to 3 and 3 down to 2. At this time, the engine speed drops quickly and the vehicle speed drops significantly. At this time, it can be compared to the car being pulled. However, due to gearbox problems, the car will shudder again. This problem exists in all Mercedes-Benz cars. It is just because everyone's driving habits and senses are different, and the severity will be different, so it cannot be avoided.

If you feel this problem when you just picked up a new car, we can tend to parts and it’s no problem. At this time, I suggest you try driving it gently to find the level of frustration you can accept. It also allows you to release your own driving habits as much as possible. If you didn't feel it when the car was new, and then it became more and more serious recently, it is recommended that you go to 4S to refresh the transmission program, and then drive gently to find that balance point and keep it. If you can't solve the problem by brushing the gearbox program, and it's getting worse, you should go check it out immediately. After all, the solution is usually to replace the gearbox valve body or directly replace the gearbox assembly, which are not cheap, especially for Mercedes-Benz. The gearbox assembly is extremely expensive, so it must be disposed of within the warranty period.

Answer: Optional equipment is tied to the price of the car, so you have to wait half a year to choose the cheaper equipment, and it can be done in one day if you install it later. The cost price of the later installation is half the price of the optional equipment. It also includes installation fees, transportation fees, etc. Therefore, at this price, the decoration is the same regardless of brand cars such as BMW and Mercedes-Benz! So when ordering a car, try to make it according to your own situation. Of course, you can choose the ones you can. Don’t be in a hurry to use the car. case.

Solution: Standard tires: 2.4-2.5bar. Reinforced tires: 2.8-2.9bar. Maximum air pressure: should not be greater than 3.5bar. Seasonal factors: Winter: Based on the standard tire pressure of automobiles, increase it by 0.2bar?. Summer: According to the lower limit of automobile tire standard pressure. When a car is parked in the open air in summer, the air pressure can generally be about 0.1 bar lower than the standard. Loading load: Empty/half-loaded: According to the lower limit of the car tire pressure standard (the tire pressure on the vehicle identification sticker can be used as the minimum tire pressure reference value). Fully loaded: When fully loaded, use the upper limit of the car tire pressure standard (the maximum tire pressure value on the tire label can be used as a reference for the theoretical maximum tire pressure). Driving road conditions: On roads with large bumps, lower the tire pressure by 0.1-0.2 according to the standard car tire pressure. bar. When running long distances and high speeds, the tire pressure should not be too low. It is appropriate to increase the tire pressure by about 0.2 bar according to the lower limit of the standard car tire pressure. Tire condition: New tires: The tire pressure can be increased by about 0.2 bar according to the standard car tire pressure.

Used tires: Adjust the tire pressure appropriately according to the car tire pressure nameplate standard. If the tire is severely worn, adjust the tire pressure to the lower limit of the car tire pressure standard. Tire pressure check? Generally, the tire pressure of a car should be checked at least once a month. Pay attention to adjusting the tire pressure every time the season changes. The ideal adjustment time is in November and May. November basically enters winter, and the tire pressure usually decreases. Should be slightly adjusted. The weather starts to get hotter in May. It is recommended to check whether the air pressure is normal. Pay special attention to not lowering the tire pressure deliberately at this time as long as the tire pressure is not much higher than the standard range. If your tires are deflated, there is no need to adjust the air pressure every month. Nowadays, many cars have low-pressure tires. Some car owners go to unprofessional repair shops to inflate the tires, causing the tire pressure to be too high or too low. Therefore, it is recommended to go to a professional repair shop to inflate the tires and check the air pressure with a pressure gauge at any time to avoid over-inflation.

Solution: Formaldehyde is produced from new car roof felts, seat skins, plastic parts of car dashboards, and plastic materials used in fillers and other decorations, and benzene comes from adhesives. Among them, formaldehyde pollution is relatively serious, and it is also very harmful to the human body. I won’t go into details about this harm. You can search it. Therefore, the control of formaldehyde is very important. I provide the following methods that I have used before and hope they can help you. 1. The plastic packaging in the car should be removed as soon as possible so that harmful gases can be released quickly. When driving, open the windows. The fast air flow will also take away the odor in the car. 2. Use activated carbon and leaf mud to adsorb. It should be noted that activated carbon is easily saturated and needs to be replaced after a period of use. Otherwise, the adsorbed material will be released due to overload. Relatively speaking, Yeguang mud not only absorbs but also decomposes the absorbed harmful substances by itself. It does not need to be exposed to the sun and will not be saturated, making it a better choice. 3. When it comes to air fresheners, be careful not to just buy those fragrant smell-masking sprays, but buy air purifiers like photogreens that can not only mask odors but also decompose formaldehyde, which can decompose formaldehyde. Effective.

Solution to the answer: The Mercedes-Benz circuit design does not have long-lasting power, and it will be disconnected after a few hours and needs to be unlocked again

Solution to the answer: One-click lifting and lowering of the car window refers to the car window glass A system that can be raised and lowered into position with one click. Lift failure is generally caused by loose screws of the lift, damage to the lift, or deviations in track installation. If the entire vehicle is powered off or the battery is replaced during vehicle repair, the one-touch window lift function may fail. If it fails, it will need to be reset. This small problem can be solved by resetting it, and there is no need to go to a 4S store and spend a lot of money. The setting steps are as follows: 1. Push the window button to be set up, let the window rise to the top, and keep the button pushed up for 5 seconds. 2. Press the window button, lower the window to the bottom, and then keep the button pressed for 5 seconds. Now you can try to see if the one-button lifting is good! If the one-button lifting cannot be restored after resetting, then you need to find other reasons, or you need to send it to a 4S shop for repair!

Answer: If only the front windshield of the vehicle is scratched, you can drive to your local glass shop or a shop that does traceless repairs to have it polished and repaired. There is no need to rush. If you really need to replace the car window glass, it is recommended to replace it with Fuyao glass. Even if you want to replace the original glass, you can only go to a 4S store. Specialty stores cannot replace the original glass.

Solution: Most of this situation is caused by the brake disc being rusted. It disappears after a few steps on the brakes while driving. This is normal.

Answer: Do not use glaze sealing or waxing on new cars. Glaze sealing is one of the traditional car paint beauty projects. Waxing, sealing glaze, coating, and crystal plating are all beauty projects for car paint. The sealing glaze lasts for a short time (up to half a year). Its main function is to improve the original car paint. The gloss and hardness of the surface enable the car paint to better resist the invasion of the external environment, effectively reduce scratches and maintain the brightness of the car paint. After the sealing glaze fails, it needs to be re-sealed, otherwise the paint will age more seriously. Note: Do not wax again after sealing the glaze.

To seal the glaze, the car needs to be polished on the paint surface, which is understood to be a thin layer of paint. The staff in the store will tell you that the polishing process only removes the oxide layer and dirt on the car paint surface. In fact, as long as it is polished, it will inevitably cause damage to the car paint, so beauty projects such as glaze sealing have gradually fallen out of favor. Unless the fine lines on the paint surface are very serious and require minor renovation, we do not recommend sealing the glaze in other cases. Simply put, polishing will remove the paint, but if your purpose is to repair the damaged paint, then this part of the removed paint should not be regarded as "damage", and this part of the "damage" will have a negative impact on the car's paint. The total thickness is nothing. For scratches caused by daily use of cars, if polished with the correct technique, it is usually only necessary to remove 1-2 μm of paint layer (the thickness of the paint surface of today's cars is usually 80-130 μm) to achieve a more satisfactory effect. In addition, new cars do not need to be waxed. New cars come with original factory protective wax and do not need to be waxed within half a year. If waxed too early, it will destroy the original wax on the surface of the new car, causing unnecessary waste. There are many types of car waxes on the market, including solid ones, liquid ones, domestic ones, and imported ones. These car waxes have different properties, effects and functions. For example, there are those that protect the car paint, and there are also those that are just for looking good. . Therefore, when choosing car wax, you must first understand the efficacy of car wax.

Of course, there is no use for crystal plating on car clothes. Crystal plating is liquid crystal protection, which is equivalent to beautifying your face. You use beauty water on your face, which is equal to the difference between crystal plating and using a mask to protect it. It is the same as car clothes. Of course, the protective effect of the mask blocks all external erosion and keeps you beautiful. It is the same as the protective film on a newly purchased mobile phone.

Solution: The ice and snow weather in the north brings great harm to our driving safety. It has a huge impact, so many car owners will prepare a pair of car anti-skid chains when buying a car in case of emergency. Especially for those who often go out of the city or self-driving tour enthusiasts, car anti-skid chains have become a must-have equipment. So is it better to use snow tires or snow chains in snow? How should we use car anti-skid chains correctly? The advantage of using chains is better traction performance on snowy roads, but it does not bring you excellent handling and driving pleasure. Moreover, using a chain will greatly reduce your driving speed, while using winter tires not only allows you to maintain a high speed on ice and snow-covered roads, but also allows you to experience the joy of driving on ice and snow roads. And if snow chains are used improperly, they may cause damage to the tires. Winter roads are full of safety hazards. Whether they are icy, slippery or snowy, they pose special challenges to your car and its tires. When the outdoor temperature is below 7 degrees Celsius, the rubber of ordinary summer tires will gradually harden, and its performance will decrease accordingly. In order to ensure that your tires maintain good grip and control performance on winter roads, ensure For the safety of your driving journey, it is very necessary to change to winter tires. It depends on the road conditions. If it is in the wild with thick snow, anti-skid chains are recommended. If it is an urban road with dark ice often appearing, it is better to use snow tires. Of course, the economical value is snow chains, which cost 200 to 300 yuan a set, and the minimum price for a snow tire is more than 600 yuan, and many brands cost 800-1000 yuan a piece.

Solution: Generally speaking, 4S will definitely not be guaranteed for quality issues related to your modification project. For example, if you replace a set of headlights, but the engine breaks down, the engine is covered; or if you replace a set of headlights, and there is a problem with the circuit connecting the headlights to your original car, then the circuit is not covered. So. When choosing a modification shop, you should choose a large shop that has more professional construction cases and is easier to solve if you encounter problems.

1. Engine oil: Mobil fully synthetic is generally chosen. After all, Mercedes-Benz original engine oil is also OEM-produced by Mobil. There are silver Mobil and gold Mobil, and the models are 5w-30, 5w-40 and 0w-40. , I recommend using 0w-40, which has better cold start protection. 2. Machine filter: MANN and MAHLE. Mercedes-Benz original equipment seems to be supplied by these two brands. Which one to use depends on the car model. 3. Air-conditioning filter element: Man brand. In fact, it is replaced diligently. It can be replaced by a domestic activated carbon air-conditioning filter element once a year. Friends who are not short of money will not tell me.

4. Air filter: Man brand. This is related to the breathing of the engine. Just use the original Man brand. 5. Spark plug: Bosch, NGK. 6. Brake fluid: Use DOT4 type brake fluid, because it can be mixed, so you don’t have to pay special attention to the brand. 7. Transmission oil: Use Mercedes-Benz original automatic transmission oil. When choosing it, you should choose the corresponding oil according to the transmission equipped with your own model. 8. Antifreeze: It is generally recommended to use Mercedes-Benz original antifreeze. Of course, if you are not particularly obsessed with antifreeze, you can use ethylene glycol antifreeze from other big brands. 9. Brake pads: TRW, ATE, Bosch, Brembo, Ferodo, JURID. 10. Glass water: Turtle Brand, 3M, Car Servant. Regarding glass water, some car owners have heard that they must use Mercedes-Benz-specific water, otherwise they will call the police when the car is full. Is this true? 11. Tires: Mercedes-Benz's original run-flat tires are from Bridgestone. However, bulges and punctures have occurred frequently recently. Some car owners even have 4 punctures in 2 months. In such a situation, it is really better to replace them with ordinary tires. At present, Domestic tires are also good, such as Chaoyang, Triangle, and Linglongdeng tire brands. 12. Wheel hubs: BBS, ACE, Dicastal Hongxin Guangwei, etc. 13. Fuel additives: It is recommended to use Mercedes-Benz original fuel additives. Of course, you can also use products from other big brands that produce additives. The key is that you Make sure you buy the real thing. Therefore, it is safest to buy from Mercedes-Benz’s official Tmall flagship store.

Solution: When the temperature is low, car owners often ask about the problem of the heater not being hot. Some people have to turn the heater to the maximum setting to get warm air, and some people have problems with the heater not being very powerful. There are also cases where there is no warm air at all, and all that comes out is natural air. Today I will briefly summarize these issues about the lack of warm air, and I hope it will be useful to you. First, let’s briefly understand the working principle of your heating system: the engine generates heat, and the coolant is heated to cool the engine. After the engine reaches a certain temperature, the ACC control module will control the air conditioning water valve to open, and then the heated coolant passes through the water pipe. Entering the heater water tank, the heater water tank transfers heat to the passing air, and then the blower blows the heated air into the car, thereby realizing the heater function in the car. It can be seen from the principle that the heater function can be divided into two parts. One is whether the coolant is sufficient and the circulation is smooth; the other is whether the relevant control systems and components are running well. Therefore, the main reasons why the heater is not hot are: 1 , there is less coolant, or because the water pump is lost, there is less coolant flowing through the heater water tank. 2. The thermostat is always open or opened too early, causing the water temperature to be too low and the warm air to be always weak. 3. There is too much air in the coolant, causing air blockage and affecting circulation. 4. The heater water tank is clogged, so the coolant flowing through the interior becomes less and slower, and the heat energy transferred to the air is insufficient. 5. The air conditioner water valve is faulty and cannot be opened or is opened only a small amount, resulting in less coolant that can be used to heat the air. 6. Control system and signal failures: a. Various sensor failures, such as: interior temperature sensor, evaporator temperature sensor, air outlet temperature sensor, refrigerant pressure sensor, exterior temperature sensor, multi-function sensor, daylight sensor, etc. . b. The AAC control module itself is faulty.

Answer: A Mercedes-Benz owner said that he doesn’t know what’s going on with his car recently. Sometimes it gets frustrated while driving, and sometimes it suddenly becomes faster or slower, and suddenly it suddenly becomes faster or slower. I wonder, what went wrong? Anyone who learned to drive with a manual transmission in the early days should have had this feeling. That is, if the accelerator and clutch are not coordinated properly when first learning, it is easy to cause the car to buckle or tilt as mentioned above. Generally speaking, it is a problem with the accelerator and clutch. Nowadays, cars are generally automatic transmission, so it is a matter of the accelerator and automatic transmission. The throttle represents the air intake, fuel supply, and fire supply. The automatic transmission should actually be understood as the transmission system, as well as the electronic control system in the entire power process. These are the three major components that make a car awesome. Specifically, it is composed of a single one. The result is a car that is caused by the combination of two or three parties, which requires specific actual vehicle inspection and analysis.

Here are some common factors that cause the car to spin: 1. Carbon deposits and dirt in the valve system; 2. Insufficient pressure in the fuel pump or foreign matter inside; 3. The fuel filter is clogged; 4. The fuel pressure regulator is damaged; 5. , The fuel injector is clogged; 6. The spark plug has carbon deposits or insufficient ignition capacity; 7. The ignition coil voltage is unstable; 8. The transmission control program control failure; 9. The torque converter locking control failure of the transmission; 10. Electronic control Problem: Such as battery failure.

The detailed function is as shown in the figure:

Solution: Let’s look at the common reasons: 1. The key is out of power: Generally speaking, 2018 cars are only one year old Many, it is unlikely that the key will run out of power so quickly, so this high possibility can be ruled out. 2. In-vehicle computer program problems: Some signal recognition and conversion in the vehicle must be performed through software programs. For this kind of problem, it is usually better to upgrade the program. 3. The key battery has poor contact: you can disassemble the key and reposition the battery. 4. There is signal interference nearby: The signal shielding in some places is quite severe. It might be better to change the location.

Solution: The specific method is also very simple, that is: power on the whole car, then enter the vehicle settings, then rotate the standby mode, and then a pop-up window will pop up asking whether to activate the standby mode. Select Yes. Okay, finally turn off the power and lock the car door. The next time you start the engine, the standby mode will be automatically released.

Answer: In the face of the nationwide epidemic, many people have not left home for several days. Some people have been confined for 5 days and want to drive out to do errands, but find that the meter has a battery alarm, and their own battery It was just over a year ago, so it won’t stop working so soon. What could be the reason? Generally speaking, almost all vehicles in normal use will not cause a battery loss alarm if left for 5 days. As mentioned above, if the battery is replaced just over a year ago, it is unlikely that it will end its life. The specific reasons are as follows: 1. Car owners often use their vehicles to drive short distances, or often turn off the engine to listen to music and radio. For example, they drive twice a day, each trip not exceeding 5 kilometers. The distance is too short to fully charge the battery, so the battery power is constantly being consumed. There is not enough supplies. This is something we car owners can handle and deal with on our own, and we can correct our habits by ourselves. For the problem that the mileage of the car is too short each time, you can only use the car every day. When it is left for a long time, you can buy a charger to charge the car overnight. 2. Energy system failure, specifically: a. Battery sensor failure; b. Generator and its circuit problems; c. SAM control unit failure; d. The battery is aging and cannot hold enough power and needs to be replaced; e. The vehicle's sleep current is too large Or cannot enter the sleep state; f. Problems with the terminal blocks and wiring between the battery, battery sensor, and SAM control unit. If it is a malfunction, it stands to reason that you should go to a repair shop to diagnose and find out the specific cause. But in these extraordinary times, it is estimated that no one will go to the repair shop for this problem. Buy a charger to extend the life of the battery, and then go for repair after this period of time.

Answer: I believe many Mercedes-Benz owners will receive such a text message. This text message prompt tells you that the battery is running low. We know that the most feared thing about batteries is overcharge and over-discharge. If you ignore this prompt, it will easily cause over-discharge, and the life of the battery will be greatly shortened if you use it a few more times. So when you encounter this prompt, you must solve it as soon as possible. There are many reasons why the battery power is too low. Here are a few common ones: 1. The car is basically used for short distances, and the battery is often not fully charged. If you do not use the car frequently and only use it once a week or more, Then it will be easier to cause the battery to lose power. This situation can only be improved by yourself. 2. The service life of the battery is coming to an end. Generally speaking, a Mercedes-Benz original car battery can last for 4 years, and if it is properly maintained, it can last for 7 or 8 years. This needs to be checked by a repair shop. 3. There are modifications to the vehicle, and 4S modifications are better. Most of the modification shops outside are not familiar with the car models, and it is easy to cause power loss. 4. There is electric leakage in the vehicle. This is difficult to check and is thankless for 4S. Therefore, it is often the case that car owners go to 4S multiple times and the final test is fine.

We car owners can first eliminate items 1 and 3 by ourselves, remove all modified equipment, and then go to 4S to eliminate items 2 and 4. It is easier to check the battery. If there is a problem, they will usually tell you. There is no need to fool you. If 1 , 2, and 3 are all ruled out, then the high probability is 4. There is leakage, but sometimes the inspection is not careful enough and it is not found out.

Answer: A car owner asked about this function. It is actually very simple. Just press a few buttons. Here are the specific steps: 1. First, power on the whole car; 2. Adjust the seat to your own feeling. Comfortable position; 3. Press the M key to start the seat memory function; 4. Press any number key 1, 2, 3 again to memorize the seat position. When you hear a "beep", the relevant display will appear on the instrument. It means the memory is good; 5. When you want to use it next time, press and hold the number key, and the seat will automatically adjust to the position you set. PS: Some Mercedes-Benz models have driver’s seats equipped with Hall motors and memory control computers before the equipment is reduced. For such models, you can purchase the memory panel and ventilation switch assembly yourself, which can perfectly realize the seat memory and The ventilation function is estimated to be around 2,000, which is still very affordable.

Some car owners reported that when replacing the brake pads, they found that the shock absorber dust cover was damaged and asked if it was necessary to replace it? I heard some repairmen say there is no need to replace it, so this thing is useless and dispensable? Solution: If this thing is broken, I recommend replacing it as soon as possible. The dust cover, as the name suggests, is something that prevents dust and sediment from entering the shock absorber. If this thing is damaged for a long time and has not been replaced, dust and sand will easily cause wear and tear on the shock absorber and oil seal, and then there will be abnormal noise in the shock absorber and oil leakage in the shock absorber. Moreover, sometimes acid rain, snow on the road in winter, and salt on the road will cause corrosion to the shock absorber, so the role of the dust cover is still indispensable. Mercedes-Benz. Generally, the shock-absorbing and dustproof covers of Mercedes-Benz cars are prone to damage after 4 or 5 years. At this time, you can buy them online to replace them. The thing itself is not expensive, but the labor cost is often much more expensive than the accessories, and there is no technical content. It is recommended to go to an outside repair shop to replace it, which can save a lot of labor costs.

A car owner asked, saying that he was ready to replace the brake pads, but the trip computer has not yet issued an alarm. In this case, does the sensor line need to be replaced? Solution: As long as the trip computer does not alarm and the sensor wire is not worn, you can only replace the brake pads without changing the sensor wire.

Another thing to mention is that in the past, Mercedes-Benz had two sensor wires, one each on the front right and one at the rear right, but now the Mercedes-Benz has only one sensor wire, placed at the rear right. Therefore, some brake pads are worn to the limit due to eccentric wear of the brake pads, but the probability of the trip computer not alarming increases. Remember to pay more attention to this when using your car, especially after the brake pads have been used for 40,000 kilometers. Finally, regarding the replacement of brake pads, my opinion is that you can wait until the wear reaches the limit before replacing it. Because when the wear reaches the limit, the brake pads still have 2-3mm that can be used, which is enough for you to use it for several thousand kilometers. There is absolutely no need to replace it in advance before it is worn to the limit. Is it just to save money on the induction line?

Solution: If you want to check, the main thing is 1. Whether there are scratches on the car paint. 2. Whether the wheel hub edge is intact. 3. Try to see if the lights are all normal. 4. The cleanliness of the interior, whether it is clean and tidy. 5. Whether the storage items in the trunk are complete. 6. If possible, check whether the chassis is intact (generally speaking, the chassis is intact). 7. Go around the car a few times to see if the lines are smooth and whether there are any bumps!

Answer: There is basically no difference between the different brands of glass water. I use Turtle brand glass water, and the effect is good. Yes, you can try it, especially the anti-freeze type in winter

Question: Can someone tell me, after using automatic parking to stop the car, do I still need to pull the electronic handbrake? Solution: If there is an automatic parking function, when your car stops, the handbrake will automatically pull up for you, and there is no need to operate it.

Solution: If the gasoline oil pipe leaks, just replace it with a new oil pipe. If it is a common problem and other oil leaks also occur, you can ask for an explanation!

1. There is too much carbon deposit in the engine. The fuel is not fully burned in the engine, or the paraffin colloid material in the gasoline that cannot be completely burned remains in the fuel injector, throttle, oil pipeline, spark plug and other components. , under the action of high temperature, carbon deposits are formed. The most common cause of car shaking is that the throttle valve is too dirty or the fuel injection nozzle has too much carbon deposits. Because the fuel adsorbed on the carbon deposits is sucked into the cylinder by the engine for combustion, the combustible mixture of the engine is sometimes thin and sometimes rich, causing Idle vibration after cold start. If not dealt with in time, it will also cause phenomena such as reduced power, inability to increase speed, and significant increase in fuel consumption. In serious cases, the cylinder may be pulled and the engine may be scrapped. Solution: Clean the oil line, refuel with good quality oil, and add some fuel cleaner.

Solve the problem: This is normal and is to prevent the engine from "holding the cylinder" due to rapid temperature drop after the engine is stopped. After the car has been running for a period of time, the temperature of the engine components will be very high. If the car is stopped, the cylinders, piston rings, crankshafts, connecting rods and other operating parts in the engine will "stick" together due to the high temperatures. There may be a phenomenon of tightness when starting next time, which is often said to be "holding the cylinder and bursting the tiles". Therefore, if you drive for a long time, when you need to stop, it is best to park the car and idle for a few minutes to let the engine temperature drop naturally before stopping. The car has an automatic cooling function, which means that after parking, if the engine temperature is too high, it will automatically turn on the fan to continue cooling the engine. When the engine temperature drops to a reasonable temperature, the fan will automatically stop. This is normal.

Answer: As shown, both 18 and 19 inches can support forging and customization. If the road conditions are good, choose 19. For poor road conditions, choose 18. Comfortable

By the way, share the direct effect display

Solution: Wheel hub deformation is not covered by the warranty! Because the wheel hub cast with the same strength will definitely have cracked, and the original wheel hub will be deformed and there will be no warranty. Cracks, breaks, air leaks, all are covered by warranty

Solution: Benchi ACC refers to the adaptive cruise system as shown in the picture. It is generally optional or standard and can be installed later. Use this at high speeds , quite comfortable, recommended to everyone buying a car.

Product picture display:

Answer: The Chinese name refers to the intelligent driving assistance system. This is a system that includes ACC adaptive cruise and blind spots and other functions. It is more comprehensive and generally can be purchased through optional installation or later installation. The price is relatively expensive. If you can choose to install it, just choose it, but it will take a long time to wait and it will be more expensive to install later. The detailed function is as shown in the figure:

Solution Answer: Generally, for new cars, it is recommended to choose a big brand car cover for better quality and guaranteed results, such as XPEL, Luolips Longmowegu and other imported brands. The price is more than 10,000 to 20,000. It is best not to wear a cover less than 10,000. , there is no good effect, it is better not to apply it. The warranty period is short. When choosing a store, it is best to choose a large professional chain store that is authorized. It is best to have a dust-free workshop and a store that is very clean. Because no matter how high the store environment is, the construction technology is not much different. If the store environment is not in place, let alone the construction technical requirements.

The legendary dedicated data car

Answer: It is recommended that you choose the brand Naant, which is more affordable, has good effects and quality, and has a mute key control function. The prerequisites must be met. ! There is generally no after-sales service for this, and the original factory is too expensive, so there is no need. Other brands may provide after-sales services, and they do not have a mute button control function, so I suggest you choose this brand of rotary tweeter as a better choice.

Naant's 3D rotating tweeter "original protocol controlled rotating series" is suitable for Mercedes-Benz S-class, E-class, and C-class (809 version) with the original car equipped with Berlin Sound audio. C-class 807 and 808 versions require the original car. This is only supported if you have a high-end large-screen host. The so-called original protocol control is not just a simple mute key control, the screen switch button can also control the rotation out and retraction.

Naant product picture

The effect after installation is quite good

Solution: For the better hidden recorder on the market, you can choose Mika Shield Sea Made in Shenzhen, 1080P high-definition picture quality, with parking monitoring, supports wifi viewing, you can also take out the SD card and put it on the computer to view, the whole process is hidden wiring, for better appearance, you can look at the external one, Black Sword? 6900, 1280P Ultra-high-definition picture quality, with night vision function, with parking monitoring, the original car has a screen, you can view it at any time, and it is extremely stable.

Solution: Installing the original factory comfortable entry and non-destructive installation will not affect the warranty. As long as you modify the original parts, there will be no problem.

Answer: Modification of the front and rear surrounds can be registered, and only after registration is the legal modification. In our country, the requirements for modified cars are very strict. Here are the items that can be modified: 1. Color: The color of the car body is mostly a must-change item for modification enthusiasts. The color of the car body changes more than 30% of the area. Within ten days after modification, You must go to the vehicle management office to register the color change. 2. Wheel hub: This can be modified, but the original size cannot be changed. If the size is changed, it will not pass the annual review. 3. Front and rear surrounds: As long as it does not exceed the length and width of the vehicle body, changes within a reasonable range will not cause any problems. After the changes are completed, go to the vehicle management office for filing, otherwise it will be difficult to pass the annual review. 4. Tail: As long as the shape is not very unusual, it is legal, and the traffic police may not check you. Regarding the interior, except that you cannot install additional seats without permission, there are no requirements for other aspects, such as the color of the interior, replacement of seats, replacement of the steering wheel, modification of the central control area, etc. The engine, body, frame, etc. can basically be modified, but you need to register the change with the vehicle management department, but changing a single exhaust pipe to a double exhaust pipe is not allowed

Mercedes-Benz black four-outlet

Benz China Network

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