09 model 2 0T Audi A6L direction is sometimes heavy and sometimes light

First, the cause of the failure.

The knuckle arm is deformed. Steering knuckle thrust bearings are missing or damaged. The gap between the kingpin and the bushing of the steering knuckle is too small or there is a lack of oil.

Deformation of the front axle or frame causes misalignment of the front wheels. Insufficient tire pressure. The steering gear bearing assembly is too tight.

The meshing clearance of the transmission pair is too small. The ball joint pin of the transverse and straight tie rod is assembled too tightly or the joint is short of oil. The steering shaft or main pipe is bent, rubbing against each other or jamming.

Improper lubrication of the steering gear, improper adjustment of the toe.

2. Fault diagnosis and elimination.

If you feel that the steering wheel is flexible when you prop up the front axle, the front axle and wheels will fail. This is because when the front axle is propped up, the contact resistance between the wheels and the road surface when the steering wheel is turned is no longer there. At this time, you should carefully check whether the front wheel air pressure is too low, whether the front leaf spring is good, whether the frame is deformed, etc.

Prop up the front axle and turn the steering wheel, if you feel heavy steering, it means that the fault is in the steering gear or steering transmission mechanism. At this time, the steering arm can be removed, and then turn the steering wheel, if it feels heavy, it means that the steering gear is faulty inside, and the damaged parts should be repaired or replaced as needed.

After removing the steering arm, turn the steering wheel, if it feels light and flexible, the steering gear is not faulty. After the above method inspection, if the tire, front leaf spring, frame, and steering gear are all faulty, it can be basically determined.

Hello, you need to check whether the steering machine booster pump is working properly.

The weight of the Audi A6 steering wheel can be due to the following faults:

1. Insufficient booster oil: booster steering oil is a medium oil used in the booster pump of automobiles, which plays the role of transmitting steering force and buffering. Therefore, the booster oil needs to be replaced regularly to check for leakage.

2. Tire pressure is too low: low tire pressure will lead to more contact area between the tire and the road surface, increase friction, increase steering difficulty, and cause the steering wheel to be very heavy, which is not conducive to driving safety. Car owners should always check whether the tire pressure is within the normal range.

3. Failure of steering machine and booster pump: Steering machine and booster pump are also affected by the steering of the car, and any failure of these two important components will cause steering difficulties. Whether it is universal joints, chassis suspension balance bars, plane bearings and other problems can not be ignored.

4. Engine booster belt problem: the engine booster belt is too loose or too tight, it should be adjusted in time, if the engine booster belt is aging, it can only be replaced.

The reasons for the steering wheel sinking are: 1. Insufficient booster oil, 2. Tire pressure is too low, 3. Bearing fit is too tight, 4. Booster problem, which can be dealt with according to the actual situation.

1. Insufficient booster oil.

Generally, the feeling of the weight of the direction is relatively constant, if it suddenly becomes very heavy one day, or slowly becomes heavier, it may be that the steering power oil is dirty, it is similar to the engine oil, and it needs to be replaced. Or if there is less oil leakage, then there is less power, so the steering wheel becomes very heavy. In this case, it is necessary to maintain it in time, or to add and change the steering oil.

2. The tire pressure is too low.

If the tire pressure is too low, the area of contact between the tire and the road surface will increase, the friction will increase, and the steering difficulty will increase, resulting in a heavy steering wheel, which is not conducive to driving safety.

3. The bearing fit is too tight.

For a rolling bearing connected to each steering system, it is also closely matched with the sliding bearing, so it will lead to the lubrication of the bearing can not be well run, which will affect the phenomenon of stagnation, causing the steering wheel to become sinking, this situation should check the mechanical part and the power assist system, or rule out whether there is a leakage of the inlet seal damage phenomenon.

4. Booster problem.

The relationship between the steering wheel and the booster is inseparable, so when the steering wheel becomes very heavy, it is likely that there are some poor circuit contacts or other problems inside the booster system, which should be repaired by the 4th shop.

Analysis of the original circle of automobile jitter:

1. Suspension system problems.

Body shake is also related to the aging of the suspension system. It is mainly responsible for filtering out the shake of the engine when it is running, and if there is a problem with the suspension, these vibrations will be transmitted directly to the steering wheel and cab, affecting the driving. When the engine is idling, it is easy to cause shaking when the electrical system in the car is turned on.

The engine will increase the load when the electrical appliances are turned on, causing the idle speed to drop, and to compensate for the jitter caused by the idle slip, the engine will automatically increase the speed by partially. So, when the electrical system, especially the air conditioner, is turned on, the engine will often shake. This jitter is likely to be caused by the aging of the shock absorber and needs to be replaced in time.

2. Tire problems.

For tires, the car must be balanced once when replacing new tires and new steel rims, otherwise the steering wheel will be prone to shake when the counterweight is uneven. If you find that the tire weight is not equal, you need to add lead to the inside of the rim to average the weight of the tires on both sides. Whether it is a general steel ring or a lightweight aluminum ring, it may deform or crack when subjected to a certain external force.

Deformation of the rim can cause shaking when driving, uneven weight of the rim can also cause shaking when driving, and incorrect angle of the rim can also cause shaking when driving.

3. Throttle problems.

The most common cause of car shake may be a dirty throttle valve and excessive carbon build-up in the fuel injector. After the car travels for a period of kilometers, the throttle valve will be too dirty to cause the throttle to close loosely or the idle motor to stagnate, resulting in too high idle speed, and the carbon deposit generated by the engine in the process will also cause the vehicle to shake, especially when starting the vehicle, the engine will shake more than normal, and even sometimes there will be a phenomenon that can not be started at one time. Therefore, when the body shakes, the first thing to do is to check the throttle and fuel injectors.

If you find that the throttle valve is too dirty or the fuel injector has too much carbon deposit, you should clean it with fuel injector cleaner or throttle cleaner in time.

4. The oil pressure is unstable.

If you still find that the body shakes after these are finished, it is recommended that you go to the repair shop to check whether the fuel supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is not normal, the intake pressure sensor is wrong and improper work will cause the body to shake.

Summary. Hello, happy to answer your <>

The reason for the direction of the 21 Audi A6L and the steering wheel: insufficient power oil. The tire pressure is low.

Failure of the steering gear and booster pump. Engine power belt problems. The reason why the car can't lift the speed either:

Clutch slippage. Throttle carbon deposits. Caused by a malfunctioning ignition system.

The 21 Audi A6L plays the direction, why is the steering wheel so heavy, and at the same time the car can't raise the speed.

Hello, I am glad to answer the <> for you

The reason for the direction and steering wheel of the 21 Audi A6L is that the power oil is not buried. The tire pressure is low.

Failure of the steering gear and booster pump. Engine power belt problems. The reason why the car can't lift the speed either:

Clutch slippage. Nuclear Hu throttle carbon deposits. Caused by a malfunctioning ignition system.

Kiss <>

Expansion: Wheel-shaped devices for automobiles, ships, and airplanes to manipulate the direction of travel. Because a bad model car without a steering wheel is not a car at all.

The first cars were controlled and driven with rudders. The rudder is not bad, but it will transmit the violent vibrations generated by the car to the driver, making it more difficult for him to control the direction. When the engine was relocated to the front of the car, the driver could no longer use the rudder to drive the car due to the increased weight.

In addition, I also asked them 4S shop people, they said that this is the electronic direction will not appear this scum kind of situation pointing hall matching, sometimes the direction is light, light to drive very comfortable, at the same time its power also comes out, sometimes it is very heavy only fingers, what strength in the car.

The tire pressure and my steering gear were normal.

Kiss the cause of power oil and the failure of the steering machine and booster pump.

Kiss, yes.

1) Failure of the booster pump When the pump pressure of the booster pump is judged to be unable to reach the standard value through the test, it is obvious that the heavy direction is related to this. First of all, it is necessary to check whether the meshing surface between the flow control valve and the valve seat and the steel ball of the safety valve are not tightly closed. If there is a leak in the flow valve or safety valve, it can be grinded.

Secondly, check whether the spring of the safety valve has failed. This can be checked by adding a gasket behind the spring, if the maximum pump pressure increases significantly after adding a gasket behind the spring, it means that the spring fails.

If there is no problem in both parts, the dismantling booster pump should be dismantled and the cavity wall of the vane pump should be observed for wear and strain. Due to the strain of the cavity wall, the high and low pressure cavities will be connected, resulting in the pressure cannot be established. Generally, the cause of strain is oily dirt.

If the direction is suddenly heavy, it should be checked to see if it is caused by a broken pump shaft.

2) Steering machine failure If it is found that the power assist oil pressure of the steering machine is low, it means that the reason for the heavy direction is in the steering machine. In this case, you should ask a professional manufacturer to repair it. Generally speaking, most of the steering machine failures are due to the piston and cylinder strain, or the damage of the sealing ring on the piston, resulting in the communication of the two chambers of the piston, so that the booster pressure can not be effectively established.

In addition, the damage of various sealing rings on the circumferential surface of the piston and the sealing ring on the steering screw will also cause high-pressure unloading and reduce the power assist pressure to the bottom.

Hello, you are electronically assisted or oiled, if the oil is not lacking, it is not lacking is the failure of the steering power pump, not the steering machine, if the electronic power is the electronic power is broken.

..1. The "heavy direction" you talked about is understood as: heavier and more difficult than you used to play in the direction. It is not understood as:

From the very beginning (new cars) the direction was more "heavy". There is an essential difference between these two aspects, and it is not something that can be explained in one or two sentences. For the time being, we will only analyze and understand what you are talking about

It's harder than before, and the direction is heavier.

2. Simple first step check: whether the steering oil is sufficient, whether the steering power pump is abnormal, and what is the quality of the steering oil used? Is it a special oil (note)?

Is the drive belt aged or poorly adjusted? Whether the steering ball head is loose or other defective ?。。 Wait.

3. When the car turns or fine-tunes the direction, people feel heavy and laborious. The reasons for this could be:

a. The upper and lower shafts of the worm of the steering machine are adjusted too tightly or the bearing is damaged; The worm gear and worm mesh are too tight, and there is no gap between the steering rocker shaft and the bushing of the steering gear;

b. The steering shaft is bent or the pipe string is concave and scrapes each other; steering wheel touch, grinding pipe column;

c. The thrust bearing on the steering knuckle is short of oil or damaged, and the steering knuckle kingpin and bushing are assembled too tightly or lack of lubricating oil;

d. The steering knuckle tie rod (straight tie rod) screw plug is screwed too tightly, or the tie rod joint is short of oil; The ball head of the tie rod is adjusted too tightly, or the slider lacks oil; e. Insufficient tire pressure; The front axle or frame is bent and the front wheel alignment is out of alignment.

f. The above points are based on the structure of the direction machine, and the specific corresponding direction machine model and structure.

4. Other reasons are not excluded. If there is a problem with the direction part, please send it for repair in time.

No real car has been seen, and the final result is subject to the actual car test results, good luck. Travel safely...

Check the quality of the lower direction power pump, if the oil pressure does not reach the direction will be difficult, this is very important, it is recommended to use genuine parts, and whether the pressure bearing on the front shock absorber is damaged.

Hello, this may be the lubrication system of the power steering system is not normal. If my answer is helpful to you, please set it to.

It may be that the lubrication system of the power steering system is not working properly.

Suitable for: Cars equipped with manually adjusted steering wheels.

The steering wheel position can be adjusted in the height direction and in the front and rear directions.

Pull the joystick in the direction of the arrow.

Turn the steering wheel to where you want it.

Push the lever all the way up until it clicks.

In particular, it is important to note that:

Please only adjust the steering wheel before the car starts, otherwise there is a risk of an accident!

Push the lever up to prevent the steering wheel from changing position while driving, otherwise there is a risk of an accident!

Suitable for: Cars equipped with electrically adjustable steering wheels.

The position of the steering wheel can be electrically adjusted in the up-down and front-to-back directions.

To adjust the steering wheel up or down, push the switch up or down.

When adjusting the steering wheel forward or backward, push the switch forward and backward.

The steering wheel can also be adjusted when the ignition is off.

In cars with memory, the steering column settings are stored along with the seat position settings.

It should be noted that:

Boarding Assist makes it easy to get in and out of the car, and the steering column goes up into the parking position when the ignition is turned off. As soon as the ignition is turned on as soon as the ignition is turned on, the steering column goes into storage. To use Boarding Assist, select Car Seat Other Seat Settings Driver's Seat Boarding Assist on the main screen.