Does the Audi Q3 really shake a lot at high speeds?

In this case, problems such as abnormal noise and shaking of the car are unavoidable problems for many car owners, because this is not an isolated case, but an event with a high probability of occurring. Automobile jitter is also divided into two situations: idle jitter and driving jitter, and the causes of these two jitter phenomena are different.

We know that the car shake when idling is caused by many reasons, such as serious carbon deposition on the throttle valve, ignition system failure, etc. This article focuses on the judder of the car at high speeds, not idle jitter. In fact, most cars shake while driving is related to a concept - dynamic imbalance.

When the car is driving at high speeds, especially at a speed of more than 80km per hour, the body of the car shakes obviously, and the driver can clearly feel the steering wheel vibrating. If this phenomenon occurs, the first thing we think of is the tire, and the imbalance of the tire will cause the car to shake while driving; Then you think about the failure of the chassis, which can also cause the car to shake while driving. First of all, the dynamic balance of the wheels, if there is a problem with the dynamic balance of the wheels, the radial runout of the wheels will occur when the car is driving, which makes the car shake the whole vehicle at high speed.

If it is a problem with the wheel, then the wheel must be replaced, because even the dynamic balance can not solve a series of problems caused by the deformation of the wheel. If the wheels are not round, the car will inevitably shake violently during driving. Every time the tire is repaired or the tire is replaced, it is necessary to do dynamic balancing, and the mass distribution of each part of the wheel of the car is evenly distributed by adding lead block, so that the car is stable, and the adjusted lead block will cause the wheel to be unbalanced and shake the car while driving.

Audi Q3 will really have a large amount of shaking when driving at high speeds Idle shaking, difficulty in starting, high idle speed, and excessive exhaust gas are all problems such as carbon deposits caused by poor combustion, and they must be cleaned. It's a bit normal, just don't do it for a long time, because this will cause serious carbon deposition in the long term, resulting in a decrease in engine performance. It is best to adapt to 10,000 kilometers of fuel additives, so that there will be no idle instability.

The main reason can be the unevenness of the tire.

It will appear, because he is not very perfect in terms of tires.

Many car owners have reported that this kind of problem may also be caused by uneven tires.

It's just an individual car, and most cars don't do that.

This phenomenon occurs when the speed is too fast.

It may be caused by improper operation of the car.

It should be, and a lot of users have reacted.

Many car owners have reported that this situation has occurred, which should be true.

There should be, probably a technical issue with them.

There will be, and many people have already reacted to this problem.

Fuel consumption becomes higher, and carbon deposits in power will cause insufficient combustion of gasoline, causing engine shaking and unstable speed. Difficult to start, easy to stall, high engine temperature, etc. Now, with the development of science and technology, it is also possible to solve the engine shake and unstable speed by not hanging the bottle.

Difficult to start, easy to turn off the problem.

What is the reason for the Audi Q3 automatic transmission idle body shaking; Clean up carbon deposits on time, idle jitter, difficult starting, high idle speed, and excessive exhaust gas are all problems such as carbon deposits caused by poor combustion, and must be cleaned. Conventional vehicles must also be cleaned every six months or 10,000 kilometers to deposit carbon. Cleaning can be done with some no-dismantling cleaners.

Oil problem, the engine of this car is good, the quality of fuel requirements is high, you can use a general fuel additive fuel cleaner, the underground tank of the gas station is closed so well, it will be cleaned once in 2 months, not to mention our car, the fuel tank seal can not catch up with the underground oil tank, the oil tank oil is not still to be added to the fuel tank, that is not just a coincidence, the oil is not too clean. The executive version has encountered a new car body, and it would be good to add Siyoupu fuel additives to the store.

For the problem of frustration in the process of starting and accelerating the vehicle, it is generally caused by the following two reasons, one is caused by the poor working condition of the engine ignition system, such as the ignition quality is too weak or there is the phenomenon of intermittent fire failure, and then it may be caused by the poor working condition of the electronic fuel injection cherry bush system, such as the fuel pressure is too low or the fuel injector has carbon deposition or gelatinization, which leads to poor atomization of fuel injection. However, for vehicles that have only traveled more than 5,000 kilometers, the probability of having this ridge is still very small, so if the above phenomenon you described only appears occasionally, then you can also continue to use it for a period of time to roll a few times, and it is possible that it will get better after a period of use and running-in, otherwise you need to go to the repair shop in time for relevant inspection and analysis.

Resolution. Only by removing the stubborn dirt and impurities in the gearbox and effectively controlling the working temperature of the gearbox can the problem of frustration be solved. In particular, the valve body should be cleaned so that the internal flow of the valve body is not blocked. Only by completely solving the transmission problem can it be prevented from happening again.

A well-tuned gearbox has only a very slight frustration when changing gears, and it is not even felt, while a poorly tuned gearbox is very serious whether it is upshifting or downshifting.

There are many reasons for frustration, such as sudden acceleration or acceleration after braking, which are the most likely to cause frustration.

Automatic transmission models must also be only in P gear or N gear when starting the vehicle, this is because if the gear is in the reverse gear or forward gear when starting the vehicle, if the driver forgets to step on the brakes, the vehicle will start directly, this situation is easy to cause accidents, so now many manufacturers will design a protection program for automatic transmission models, that is, if the gear is not in P gear or N gear, the vehicle will not start so that the gearbox gear and the speed of the car engine are matched. Compared with manual transmission cars, automatic transmission cars are relatively simple to operate, especially without complex gear changes. However, we should still be clear about what gear to use in what situation, otherwise, not to mention damage to the car, it may also cause accidents.

There are many reasons for frustration, such as sudden acceleration or acceleration after braking, which are the most likely to cause frustration.

Hello! This is normal! Start the engine cooling system in a small cycle when the car is cold!

When the engine temperature rises, then the thermostat is turned on, and the cooling system is switched to the large cycle. So then the water temperature rises and then falls! [If you have a problem with the car, ask the car master.]

4S shop professional technician, 10 minutes to solve. 】

Audi Q3, the problem of idle jitter when the cold car starts asks for help The lack of cylinder in idle jitter is not a problem with accessories, the problem comes from poor combustion, which will cause such a phenomenon. The oil circuit can be cleaned, and the gas station also regularly cleans the oil storage tank, not to mention the fuel tank of the private car. The oil circuit of the fuel tank is dirty, and if it burns badly, it will miss the post and catch fire.

Main causes of idle jitter:

1.Serious engine carbon deposits: Cars always have the problem of carbon deposits, including cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, intake carbon deposits, etc.

When the engine has too much carbon deposit, it will affect the ignition energy, air intake efficiency and air-fuel ratio of the car, resulting in the unstable power output of the car, and the phenomenon of idle speed and acceleration jitter appears.

2.Unstable oil pressure: If you have cleaned the engine carbon deposits, cleaned the throttle, replaced the oil gasket and spark plug, etc.

And when idling, you still find that the body shakes, it is recommended that you go to the 4S shop to check whether the oil supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is abnormal, or the intake pressure sensor value is wrong, and the work is not good, it will cause the body to shake.

3.Engine cylinder shortage: Engine cylinder deficiency mainly refers to the engine one or more cylinders are not working properly, which is generally manifested as:

The exhaust fumes coming out of the car are obviously intermittent, and the exhaust pipe shakes violently, and the engine shake can be clearly felt, sometimes accompanied by abnormal noises. This is mostly related to ignition coil failure.

4.Aging of engine parts: Shake in the car is also associated with the aging of the engine feet (also known as claw pads).

The engine foot is actually the shock absorber system of the engine. The engine feet are responsible for absorbing slight vibrations when the engine is running. If there is a problem with the engine base, these vibrations can be transmitted to the steering wheel and cab, causing vibrations at idle.

Solution; The best way is to clean the oil circuit, clean it regularly, and use PNF fuel additives to solve the above problems caused by carbon deposits. The fuel quality is not very good or the initial fuel of the new car is stored for too long, resulting in a rapid increase in the colloidal composition of the oil circuit, which will continue to pollute the fresh fuel and cause no good fuel to participate in combustion in the later stage, and the carbon deposition exceeds the standard, which is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits.

When the car shakes at idle, it is generally a problem with the ignition system, oil pressure, throttle, fuel injector and other accessories. 1. The throttle and fuel injector are too dirty: this problem is the most common reason for the car shaking when idling.

In the case of too much carbon deposit, the gasoline emitted by the fuel injector does not normally enter the cylinder, but is mostly absorbed by the carbon deposit, which will cause the mixture to be too thin, and the result is that the car will have difficulty starting. When the car starts, the gasoline that adheres to the carbon deposits is absorbed.

There are several reasons for engine shake:

1. The engine has serious carbon deposits, and the most common car with serious shake is that the fuel injector throttle valve is too dirty or too much carbon;

2. Ignition system problems, check the working conditions of spark plugs, high-voltage wires and ignition coils;

3. The oil pressure is unstable, if the first pressure of the pump is abnormal or the error and poor work of the inlet pressure sensor will cause the body to shake;

4. Aging of engine parts; Excessive chain carbon deposits in engine emissions absorb carbon from the gasoline of the cold-start injector, which results in a dilute cold-start mixture and difficulty starting.

Specific solutions to idle jitter:

1. The engine has serious carbon deposits. The most common cause of idle judder is excessive carbon buildup on the throttle or fuel injector. When there is too much carbon deposit inside the engine, the gasoline sprayed by the fuel injector during cold start will be absorbed by the carbon deposit, resulting in a mixture that is too thin and making it difficult to start.

After landing, the gasoline adsorbed on the carbon deposits will be sucked into the cylinder by the engine and burned, which will thicken the mixture. When the mixture is thin and sometimes thick, it will cause idle shaking after the cold starter. The lower the temperature, the greater the amount of oil required for cold starts, and the more the presence of carbon deposits affects cold starts.

The solution is to clean the carbon deposits at the throttle and injector.

2. Poor ignition system and poor ignition of spark plugs will also lead to engine idling and shaking. If there is a problem, check if the ignition system is faulty and if there is too much carbon deposited in the spark plug.

3. The oil pressure is unstable. If you have cleaned the engine carbon deposits, cleaned the throttle valve or replaced the spark plug, and there is still the problem of body shaking when idling, it is recommended to go to the 4S shop to check whether the fuel supply pressure and intake pressure sensor are normal. If the oil pump supply pressure is not normal or the intake pressure sensor is incorrect, it can also cause the body to shake when idling.

Solution; The best way is to clean the oil circuit, clean it regularly, there is no specific experience in the research and development parameters of the clean engine from the new car, coupled with the continuous improvement of emission standards, can not adapt to the change of fuel, all manufacturers of the engine are unable to solve this jitter problem in the short term, plus the fuel quality is not very good or the initial fuel of the new car factory is stored for too long, resulting in a rapid increase in the colloidal composition of the oil circuit, which will continue to pollute the fresh fuel and cause no good fuel to participate in combustion in the later stage. The occurrence of excessive carbon deposits is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits. The use of PNF dope fuel additives can solve the problems caused by carbon deposition.

The Audi Q3 idling shakes and feels that the car is moving, indicating that the shake is obvious and violent. The causes of idle distance jitter are as follows:1.

The engine support shock pads are damaged. 2.There is a problem with the fuel system, too much or too little fuel.

1.The engine support pads are damaged. The engine itself has a lot of vibration when it is running, and this vibration is mainly caused by the moment of inertia of the rotating parts and the inertia of the reciprocating motion of the piston.

Although there are corresponding balanced damping measures in the design of the engine, slight vibrations are still unavoidable. Therefore, when the engine is mounted on the frame, there are also shock-absorbing pads on the fixed seats, commonly known as machine floor pads. When the machine floor pads are damaged, the vibration of the engine becomes more pronounced and at the same time causes the body to shake.

This fault is easy to detect, and the problem can be detected by direct visual inspection. There is a problem with the fuel system, and the amount of fuel injected is too much or too little. Spraying too much or too little fuel will cause the following air, which will not produce the correct Zen collision ratio, so the car will also shake very much.