A driver who swerves from their direction of travel while overtaking a motor vehicle:

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Correct answer

Must give a signal about the change of direction and must not endanger the driver driving behind them.

Gives a signal about the change of direction only if they haven't warned the driver of the overtaken vehicle in another way beforehand.
Does not have to give a signal about the change of direction if they do not limit or endanger the driver driving behind them.

Legal Basis: You can find this in § 17, paragraph 2 of Act No.

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