The vibration and braking vibration of the VAZ-2104/05/07 engine as well as the passage of a certain speed threshold (usually between 90 and 100 kilometers per hour) shows the most frequent violation of the balancing shaft. The part itself is not subject to change; the balancing can break the "backfilling" of the crusader of the shaft or the failure of the suspension bearings. Both parts are to be replaced. In especially difficult cases, if the seedlings of the sacovina (or the cross) are broken, the entire shaft shall be replaced.