Failure of the steering operation is fraught with very bad consequences. However, the regular work of the unit diagnostics can help evaluate the condition of the steering, as well as to predict a possible failure in the work and help in time to take action.
One reason for the problem may be faulty steering wheel, which clearly makes itself felt while driving. A possible reason may be the fault of the steering wheel or steering shaft. To troubleshoot the steering wheel must be removed to replace him or to replace the steering shaft. In this procedure should be very careful and 
accurate, since the steering wheel very tightly seated on the slots of the shaft. So you should not peel off wheel nuts, because of an acute stroke during the removal of the steering wheel may cause injury, jumping from the slots. In order to ensure easy installation, you should mark the back the steering wheel relative to the shaft.
Steering shafts vary in case of damage to them or slotted screw tails. It is also the cause of change can serve as universal joints play an intermediate shaft, as well as the curvature of the shaft in the accident.
The cause of failure of steering control can be bent tie rods. They must be replaced. Edit this crucial element of the steering system is unacceptable, since the material rod may cause cracks. Such work is most convenient to perform on a lift or position the car on the support.
The instability of the vehicle while driving may indicate malfunction of the steering mechanism. Although it is not only can this cause to replace it. It is located on the left side member, the inside of his hand. Fixed steering three bolts on the body side member, inserted on the inside. It is recommended to repair the steering mechanism in specialized workshops.