2010 Mercedes R-Class Owner's Manual - Page 55

251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 53 Version: 2.11.8.1 Occupant safety RIf the vehicle is in a critical dynamic driving 53 situation, the door windows close, except for a minimal gap that remains open. RVehicles If the closing procedure of any of these elements is blocked, it will stop and open slightly. Once the hazardous situation no longer exists and an accident has been avoided, the seat belt pre-tensioning is deactivated. All of the PRE-SAFE® settings can be re-adjusted following the critical driving event. If the seat belts do not release: X Adjust the seat backrest or seat slightly to the rear until the seat belt tension is reduced. The locking mechanism releases. Only use seat or head restraint covers which have been tested and approved by MercedesBenz for your vehicle model. Using other seat or head restraint covers may interfere with or prevent the activation of the NECK-PRO active front head restraints and/ or the deployment of the front side impact air bags. Contact an authorized Mercedes-Benz Center for availability. G Warning! ! When moving the seats, make sure there are no items in the footwell or behind the seats. Otherwise, you could damage the seats and/or the items. For information on the seat belt adjustment function as an integrated comfort feature of PRE-SAFE®, see (Y page 51). NECK-PRO active front head restraints The NECK-PRO active front head restraints are intended to offer the driver and front passenger increased protection from whiplash-type injuries. In the event of a rearend collision, the NECK-PRO active front head restraints on the front seats are designed to move forward in the direction of travel. They thus provide the head with increased support earlier on in the collision sequence. The NECK-PRO active front head restraints will move forward whether the seats are occupied or not. When the NECK-PRO active front head restraints have been triggered in an accident, the NECK-PRO active front head restraints must be reset. Otherwise, the NECK-PRO active front head restraints cannot offer any additional protection in the event of another rear-end collision. For information on resetting the activated NECK-PRO active front head restraints, see "Resetting activated head restraints" (Y page 310). You cannot remove the NECK-PRO active front head restraints. For your protection, drive only with properly positioned head restraints. Adjust the head restraint so that it is as close to the head as possible and the center of the head restraint supports the back of the head at eye level. This will reduce the potential for injury to the head and neck in the event of an accident or similar situation. G Warning! For information on head restraint adjustment, see "Head restraint height" (Y page 83), or Z Safety and security with power tilt/sliding sunroof: If the vehicle is in a critical dynamic driving situation, the tilt/sliding sunroof also closes, except for a minimal gap that remains open. Do not attach any objects (e.g. hangers) to the head restraint posts. Otherwise, the NECKPRO active front head restraints may not be able to function properly or offer the intended degree of protection they were designed for in the event of a rear-end collision. G Warning!