Why does the steering wheel vibrate during braking on VAZ-2110, Chevrolet Lacetti, Opel Astra? When braking at a speed the steering wheel vibrates

The car is a vehicle of increased danger. When moving, all controls must be operable. However, it happens that the steering wheel vibrates during braking. Opel Astra is also immune from such a problem. Let's look at the causes of this fault and how to solve them.

Wheel balancing

If you are braking at a speed vibrates the steering wheel, the first thing you should sin on is the driving wheels. They can be unscrewed or not balanced. Check the presence of weights on the disk - if one of them falls off, the problem can be solved by one visit to the tire service. You will not perform this operation on your own. Yes, and it is inexpensive, so first pay attention to the balancing. It happens that the Georgians stayed in place, but the disk bent when attacking the pit. In this case, repair will help. In the case of stamped products, they can be leveled without welding. On cast disks, this will not work. By the way, you need to balance all four wheels. For the price it will come out in 1-1,5 thousand rubles. If it is a car, it is allowed to hang not more than 50 grams of balancing weights on each wheel. It will be useful to know when buying new discs with rubber. If they have a lot of weights, this is an occasion to doubt the evenness of the disc and the uniformity of tire wear.

Tires

Sometimes the beating occurs due to uneven wear of the tread. This is possible with an incorrectly exposed wheel collapse. In some cases, motorists deliberately "overwhelm" the rear wheels, if they do not fit in the diameter of the arch. In this case, they will not be put on before, except with the same negative degree of disintegration.

Pads

Next, we examine the braking system, namely the pads. Since the rudder controls the front wheels, look at the state of the pads on them. Why does the steering wheel vibrate during braking in this case? The shoes wear heavily. The friction material is rubbed off to the lining, and then the metal part rubs against the disc. As a result, when braking, the steering wheel vibrates.

VAZ-2110 is equipped with a reliable braking system, but it can also require repairs if the consumables are not replaced in time. Pads need to be changed once for 20-25 thousand kilometers. If you have an aggressive driving style, divide this figure by 2. After installing new shoes, run-in - for 200 kilometers, brake smoothly and without jerking. This is to ensure that the new material is rubbed against the work surface. Remember that the front pads wear out several times more often than the rear ones.

Determine the wear can be on the notches: when the pads are worn out before them, you need a replacement. Well, if the friction material is worn down to the metal lining, urgently buy pads, as with the next braking the support can simply jam and the car will go. Also, the replacement is indicated by a characteristic creak when braking. Sometimes this happens due to poor frictional material or when water gets on its surface. After washing the car, carefully dry the brake by briefly pressing the pedal.

Drives

These are not wheeled, but brake discs. They also have their own resource and are considered an expendable material. Depending on the style of driving, they serve from 150 to 200 thousand kilometers. With time, the thickness of the disk decreases. When the working part is completely worn out, the shoe starts to beat against the base. Of course, after this, when braking, the steering wheel vibrates (on the "Chevrolet Lachetti" as well). Also, deformations of the disk are not excluded. When braking, the frictional force increases - the metal begins to heat up. And if at that moment the car drove through the puddle, the disk could crack due to the temperature drop. It sounds awesome, as if it's about to break up into small pieces. Even a small crack makes itself felt. If you vibrate the wheel while braking, pay attention to the condition of not only the pads, but also the disc itself. Sometimes, instead of cracks, it simply "leads". The work surface becomes uneven. At first glance, you will not see any deformations. But for the pads, the slightest bump is enough to provoke a vibration. If you buy new disks, choose only originals. The kit includes new brake pads. If you only sold a disk, this is a reason to doubt the integrity of the seller and the manufacturer. Also on fakes, the thickness of the working surface and the weight is much less.

How to check the disk?

To do this, you need to subdivide the car and rotate the hung wheel. The machine must not stand on the gear - only the handbrake, otherwise you will not move the drive from the seat. If during rotation it produces characteristic sounds, disassemble the wheel and inspect the condition of the brake elements.

It is also recommended to check the bearing of the hub. To do this, you need to tilt the wheel back and forth. If there is a big play, it should be tightened. But remember, the bearing needs a small free stroke. If tightly tightened, you risk damaging the part. If the wheel rotates, it may be that the piston of the caliper is inactive. Check its condition and replace if necessary.

Disk Repair

In some cases, this item can be restored. It lends itself to repair in the absence of cracks. The whole procedure of recovery is to bore the working surface of the disk. It aligns to a perfectly flat state. But in the case of cracks, and if the thickness of the disk is minimal, it changes entirely. The cost of the new element is from two to ten thousand rubles. You can replace it yourself. But it will only be squandered by a professional turner.

Dirt inside

Sometimes sand and dust, which has fallen on the working surface of the brake elements, can provoke vibrations. Especially often it happens in rainy weather, when dirt adheres to the disc along with water. Over time, it dries up and forms a hard layer. It can serve as an anti-balancing weights, because of what you have when braking vibrates the steering wheel. Sometimes dirt gets on the inside of the disc or on the wheel shelf. The solution of the problem is the high-quality washing of the brake system elements under high water pressure.

Steering links

If there are vibrations, inspect the steering rods. With wear and development of the tips, these elements begin to vibrate during braking. How to check them? To do this, you will need an assistant. He must hold the steering wheel firmly. At this time, you pull the steering rod from side to side (on a jacked-up car). There should not be any backlash.

In the presence of free travel, this traction must be replaced. Also a sign of a malfunction of the element is poor handling of the car. The steering wheel becomes "sluggish". After replacing the steering rods, be sure to normalize the alignment to avoid uneven wear of the rubber.

Rail

If there are any backlash, check the condition of the rail. It can flow through anther. To eliminate this, a repair kit is bought. If everything is dry, then the play can be removed with an adjusting bolt. But it is not necessary to tighten it strongly. If the play is too big, it is better to replace the rail with a new one. After that, also balance the alignment of the wheels.

Spherical bearing

To diagnose it, hang out the front wheel and grasp the upper and lower parts of the tire. If there is a backlash, the ball bearing may malfunction. There are no adjusting bolts, as on the rack or hub bearing. The solution is to replace the element with a new one.

Cardan transmission

On many cars in the steering column there is a small cardan. It must also be inspected. You can get to it by removing the protective cover of the column. There is an element in the place where it enters the body. If the cardan club staggers, there is work on it. After the replacement of this element, the steering wheel does not vibrate any more when braking. This does not happen often, but you should not rule out such a malfunction.

Other elements

In rare cases, the rudder vibrates during braking due to the rotor's damper supports. This happens on cars older than 20 years. Also on such machines wear out silentblock suspension. As a result, there is backlash and vibration. Work elements should not have any signs of corrosion and streaks.

Conclusion

So, we found out the main reasons why the rudder vibrates during braking. As you can see, in most cases the problem is uncritical and solved in one light day. But this does not mean that it should be postponed for later. Remember that a good steering is a guarantee of safety for the driver and his passengers.