Pedestrian safety system for a motor vehicle, airbag for the use in such a pedestrian safety system and motor vehicle with such a pedestrian safety system

A pedestrian safety system for a motor vehicle having a hood (40) and a windscreen (42) is described. Said safety system comprises an airbag with an outer skin extending from a front end (14a) to a rear end (14b) when the airbag is in its fully deployed state with the rear end (14b) being positioned in front of the windscreen at least in sections. Said airbag skin comprises an upper wall and a lower wall. In order to provide a compromise between a vehicle with no pedestrian airbag at all and a vehicle with a pedestrian airbag, taking the driver's sight, the airbag further comprises a plurality of shaping tether elements (20a) connecting the upper wall and the lower wall. Said shaping tether elements each extend from a first end to a second end with the first ends being closer to the rear end (14b) of the outer skin than the second ends. The height of each shaping tether element (20a) rises at least in a rear section of the airbag from its first end towards its second end ( Fig. 3 ).