The Renault Sandero rear suspension is defective.

The structure of the rear suspension of the Renault Sandero is simple enough, so the reason for the knock is relatively small.

The most vulnerable of the rear suspension of the Renault Sandero is the saloon-side of the boulder, the hub bearings, or the spring poles.

The shock absorber or worn cushioned cushions of the shock absorber to the body may also be the cause.