Audi A6L2016 1 8T slow acceleration with abnormal noise

It's best to go to the 4S store to check it out to avoid unnecessary damage.

Wheel bearing abnormal noise and rear axle noise distinguish the car in driving and sliding, the noise of the front wheel bearing remains unchanged, such as keeping the speed unchanged and a little braking, the wheel bearing can reduce part of the load, so that the noise can be weakened, you can find that the noise source comes from the vehicle at low speed when the throttle fuel supply is small, the engine speed is low, the gearbox gear bite is not good, the throttle is small, and the oil supply is intermittent, so it is easy to produce frustration.

There are many gears, if they are too loose, they will make a sound when cornering: many parts are cold and hard, and the lubrication is not enough, which leads to abnormal noise, and at the same time, the drive wheel can not be refueled violently when it slips, causing the planetary gear to bite to death in its shaft at low speed, or when the accelerator is filled, there will be abnormal noise under the engine, especially when the weather is cooler. It is recommended to raise the frame and check whether there is a heat shield between the exhaust pipe and the ground, which may be caused by the aging of the heat shield, and it can be solved by replacing or removing it.

The low-speed shift card of the vehicle is due to the fact that when the vehicle is at low speed, the engine speed is low, the gearbox gear speed is slow, the gear bite is not tight when shifting, and there are slight teeth, so the reason for the click sound of Audi A6 low-speed driving resonance: dirty air filter, air intake pipe leakage and ignition system failure. In this case, the over-deceleration has abnormal noise, and the balance bar rubber sleeve and front pressure bearing are generally checked, which is basically a problem in these two places.

Audi A6L adopts front five-link suspension, rear trapezoidal multi-link, and the front aluminum alloy control arm is no problem, very sincere, high strength and light weight. However, the bearing sleeve of the lower bending arm is made of rubber, and the random kilometers and the passage of time will unravel and produce an open space, and the abnormal sound of the device is different from the abnormal sound of other chassis, which is dull. In the steering wheel if the front shock absorber, there is also a noticeable sense of vibration.

Find an experienced driver who can accurately judge which suspension is issued. Generally, the upper swing arm and the lower swing arm or shock absorber sound, you can drive to 4s to check, generally the Audi swing arm is used in about 8 to 10w kilometers to reach the point of replacement, and the rubber sleeve inside will crack. It will make a strange noise.

In this case, it is generally possible that the foot glue is relatively old. Or is there too much carbon deposit, and is it time for the spark plug to be replaced? In this case, it is recommended that you go to the repair shop to check.

You should immediately go to a professional repair shop to have your Audi car repaired, if you continue to do so for a long time, it will only wear out the car.

The abnormal acceleration noise of the Audi A6L may be caused by the cylinder valves, the control valve can be replaced, and the lack of oil can also cause similar problems, the oil pressure is better than the low one, and the engine oil pressure needs to be checked.

Engine Maintenance Precautions:

1.Clean the empty air filter.

The air filter is directly related to the amount of air intake into the engine while the car is in motion. The car is only driven in urban areas, and the air filter will not be clogged. However, if the car is driving on a dusty road, you need to pay special attention to the cleaning of the air filter.

The air filter is blocked or there is too much dust, the engine air intake is blocked, and a large amount of dust enters the cylinder, which accelerates the carbon deposition in the cylinder, so that the engine ignition is blocked, the power is insufficient, and the fuel consumption of the vehicle naturally increases.

If driving on normal city roads, when the car travels 5000 km, the air filter should be checked. If there is too much dust on the filter, consider blowing compressed air from inside the filter to clean the dust. However, the pressure of the compressed air body should not be too high to avoid damaging the filter paper.

There are many reasons for sludge at the throttle, some of which are due to the formation of carbon deposits at the throttle by the exhaust gases from fuel combustion; In other words, unfiltered liquids that are not filtered by the air filter remain at the throttle. If there is too much oil, air resistance will be created at the air intake, resulting in increased fuel consumption. In general, when the vehicle travels 10,000 to 20,000 kilometers, the throttle valve should be cleaned.

2.Clean carbon deposits on the injectors.

Because the combustion chamber is prone to carbon deposits, it will lead to difficulty in starting; Carbon deposition in the fuel injector will also lead to oil blockage, gasoline injection deformation, poor atomization, and natural fuel consumption will increase.

To clean the combustion chamber, a special carbon remover can be used to soften the carbon deposits on the combustion chamber and fuel nozzles and separate them from the surface of the part, and then remove the softened carbon deposits. This method of carbon removal works well. Compared with conventional direct wiping, it has the advantage of not damaging the surface of the part, and the carbon removal efficiency has been greatly improved.

Millions of car purchase subsidies.

Summary. Dear, hello, it is a pleasure to serve you, the causes of abnormal noise of the 2014 Audi A6L engine are as follows: the relationship between abnormal noise and engine speed The existence of the most common abnormal noise of the engine depends on the state of the engine speed.

Abnormal sounds are only present at idle or low speeds. The reasons for the noise are: the gap between the piston and the cylinder wall is too large; The piston assembly is too tight or the connecting rod bearing assembly is too tight, and the gap between the tappet and its guide hole is too large; wear of the valve cam profile; Sometimes the starting grip is loose, which makes the pulley ring (obvious when changing gears).

Dear, hello, it is a pleasure to serve you, the causes of abnormal noise of the 2014 Audi A6L engine are as follows: the relationship between abnormal noise and engine speed The existence of the most common abnormal noise of the engine depends on the state of the engine speed. Abnormal sounds are only present when running at idle or low speeds.

The reasons for the noise are: the gap between the piston and the cylinder wall is too large; The piston assembly is too tight or the connecting rod bearing assembly is too tight, and the gap between the tappet and its wheel guide hole is too large; wear of the valve cam profile; Sometimes the starting grip is like a positive looseness, so that the pulley becomes a ring (obvious when changing speeds).

Hello. I heard like the air intake pipe was ringing, but there was no alarm in the car.

Dear, like your car, the main consideration is that the inside of your air intake duct has been damaged. In this case, the main consideration is the conversion inside the intake pipe, and the flap is broken or stuck, which requires removing your engine intake manifold and then checking the flap in the inner field for jamming or damage.

The left side of the intake branch makes a loud noise.

Dear, in your case, you need to remove your engine intake manifold and check whether the internal flap is stuck or damaged.

Good Extended information: The Audi A6L was the first Audi model to enter the Chinese market, and the predecessor was the third-generation Audi 100, codenamed C3, which was introduced in China in 1988. The Audi A6L is a model developed by FAW-Volkswagen Audi on the basis of the new A6 in Germany, and is a replacement product of the A6.

In June 2012, Audi replaced the A6L on the market, the car is equipped with 35 TFSI dynamic Li Haoli, and the sedan looks a little like the new version of the A4L. On August 26, 2017, the 30th anniversary of the Audi A6L was unveiled at the 2017 Chengdu International Automobile Expo and officially launched at the Chengdu Auto Show.

When accelerating, the engine may have abnormal noise, which may be debris inside the engine, and the best way to deal with it is to change the oil and filter.

On the issue of abnormal car noise, it is difficult for ordinary car owners to distinguish which Youtanner is a fault abnormal noise and which is a reasonable abnormal noise. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises really had problems. In the case of a turbocharged engine, there is a must be a difference between the sound and the sound of a naturally aspirated engine; Models with engine guards may also cause noise due to friction; After some car owners come into contact with different cars, they can understand it very well and mistake the reasonable abnormal noise for a vehicle failure.

Therefore, learn to distinguish the abnormal noise of the car and avoid wasting time and energy.

How to identify the sound of a car:

In practice, due to the limitations of working conditions, it is difficult to measure the sound of the car with special instruments, and the sound of the car can only be described and compared with the judgment of the sound in daily life. For example, the "rattle" sound caused by the dry friction of the bearing, and the "click" sound similar to the small hammer hitting the cement floor caused by the excessive valve clearance.

1. Correctly distinguish between normal and abnormal sounds.

The vibration of each mechanism of the car when it is working will make a variety of sounds, but the absence of a sound does not mean that the car is faulty, in order to avoid unnecessary disassembly, we must first distinguish between normal noise and abnormal noise. The normal vibration sound of each system component (such as the noise on the surface of the engine), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of wear of the parts is not large, and there is no significant change for a long time, and this kind of fault is not repaired.

3. When diagnosing abnormal noise, attention should be paid to creating good auscultation conditions and trying to eliminate the interference of other noises, so as not to affect the accuracy of judgment.

It is best to consciously amplify or reduce the sound, that is, use a screw or other metal rod as a stestological instrument to contact the sound part to amplify the sound, or use a single cylinder fire cut-off to reduce the sound to meet the diagnostic needs. The auscultation site should be kept quiet to minimize human interference.

Aerodynamic squeak is mainly caused by the vibration of the air flow in the intake, exhaust and running fans of the engine. The abnormal noise is related to the lack of engine speed, temperature, load and lubrication conditions.

Therefore, in order to accurately determine the cause of abnormal engine noise, it is necessary to conduct a professional inspection of the car. In addition, the situation varies depending on the model.

If the engine sound is slightly louder every time it reaches 1500 rpm, and it is normal to reach this value or exceed this value, it may be that there is something wrong with the engine's holding system. You can try to adjust the ignition time or interval first.

Summary. Hello dear, the following answers have been made to your questions, and I have helped you sort it out! That's it, dear!

The reason is the resonance of the exhaust pipe! There are two net-like honeycomb-shaped tubes behind the three-way catalysis, which are connected to the three-way catalysis and the left and right exhaust pipes. After my car was lifted, the throttle was increased to 1200 rpm to stabilize it, and I found that the metal hose vibrated very badly, and the master put on heat-insulating gloves to hold the two metal hoses to prevent it from vibrating, and the resonance disappeared immediately!

The master explained that the torque resonance point generated by the exhaust of the engine at 1200 rpm was exactly on the two metal hoses, and those two hoses were not well fixed, so the resonance occurred.

What is the reason why the Audi A6L has an abnormal noise at 1200 rpm.

The pro x09 conversation is in the queue for manual answers. We're glad to answer your question! The time limit for replying to the platform is 24 hours!

Your problem needs to be typed, so you need to wait patiently, Xiaomi will sort out the plan for you immediately! 珞

Hello dear, the following answers have been made to your questions, and I have helped you sort it out! That's it, dear! The reason is the resonance of the exhaust pipe!

There are two net-like honeycomb-shaped tubes behind the three-way catalysis, which are connected to the three-way catalysis and the left and right exhaust pipes. After my car was lifted, the throttle was increased to 1200 rpm to stabilize it, and I found that the metal hose vibrated very badly, and the master put on heat-insulating gloves to hold the two metal hoses to prevent it from vibrating, and the resonance disappeared immediately! The master explained that the torque resonance point generated by the exhaust of the engine at 1200 rpm was exactly on the two metal hoses, and those two hoses were not well fixed, so the resonance occurred.