The cause of knocks from below can be malfunctions of not only the suspension, but also the steering of the car.
WARNING.
The state of the steering significantly affects not only the convenience of driving, but also the safety of traffic.
The cause of knocks and vibrations on the steering wheel may be a faulty condition of the ball joints of the steering rods and the steering mechanism, the wheels of the car.
USEFUL ADVICE A
possible cause of vibration and bumps on the steering wheel when driving at speeds above 70-80 km/h may be an imbalance in the front wheels.
Contact a car service or tire shop to check the balance of the front wheels.
If shock and vibration on the steering wheel appear at the moment you press the brake pedal, it is necessary to replace the brake pads, repair or replace the front brake discs.
Source: http://nissan-qashqai.dv13.ru/neispravnosti/vibraciya-i-udary-na-rulevom-kolese/







