The passenger compartment remained stable in the frontal impact. Dummy readings indicated good protection of the legs and femurs of both driver and pssenger. Citroen were able to demonstrate that similar protection would be offered to occupants of different sizes and to those sat in different seating positions. The car scored maximum points in the side barrier impact. In the more severe side pole test, chest protection was rated as weak, based on dummy readings of rib deflections. Protection against whiplash injuriy in a rear impact was rated as marginal.
Both dummies were sat in forward facing child restraints. In each case, forward movement of the head was not excessive in the frontal impact and, in the side impact, the dummies were both properly contained by the shells of their restraints. The passenger airbag can be disabled to allow a rearward facing restraint to be used in that seating position. However, information provided to the driver regarding the status of the airbag is not sufficiently clear. The label warning of the dangers of using a rearward facing child seat without first disabling the airbag is not available in all European languages and was not rewarded by Euro NCAP.
In most areas likely to be struck by the head of a pedestrian, the bonnet provided poor protection and scored no points. The bumper provided predominantly good protection for pedestrians' legs.
All variants of the DS3 are equipped as standard with electronic stability control, a seatbelt reminder for the driver and front passenger seats and a driver-set speed limitation device