Adjustable steering column of a motor vehicle

Adjustable steering column for a motor vehicle comprising

• a setting part displaceable in at least one setting direction for setting the position of the steering column,
• a holding part nondisplaceable in this setting direction,
• a securement device in the opened state of which the setting part is displaceable with respect to the holding part for setting the position of the steering column and in the closed state of which the setting part is fixed in place by the securement device, and
• a crash blocking means by which in the event of a crash an additional holding force against a dislocation of the setting part with respect to the holding part can be exerted and which comprises a clamping wedge which, in the event of a crash, can be slid into a gap between the setting part and the holding part and can be wedged in it,
• wherein the clamping wedge is connected with a part of the securement device moving during the opening and closing of the securement device, such that during the closing of the securement device a contact face of the clamping wedge can be placed in contact on a locating face of the setting part and, in the closed state of the securement device is with the locating face of the setting part in positive locking and/or frictional closure contact, wherein the clamping wedge in the event of a crash can be entrained by the setting part at an onsetting dislocation of the setting part with respect to the holding part and can be wedged in the gap between the setting part and the holding part, and during the opening of the securement device the contact face of the clamping wedge can be raised from the locating face of the setting part.