The Mercedes-Benz CITAN Kombi was first tested by Euro NCAP in April 2013, and was given a three star rating. Mercedes-Benz indicated at that time that they would improve the safety performance of the vehicle, especially the deployment of the side airbag and the installation of child restraints; and that they would provide a seatbelt reminder for the front passenger seat and make the speed limitation device comply with Euro NCAP's requirements. These changes are now in production and Euro NCAP has re-assessed the vehicle. Several tests have been re-done to assess the changes that Mercedes-Benz have made. Where the performance is not influenced by the changes, test results have been carried over from the original assessment.
The passenger compartment remained stable in the frontal impact. Dummy readings indicated good protection of the knees and femurs of the driver and passenger dummies. Inspection of the vehicle showed that some structures in the dashboard presented a hazard to the knees and femurs of occupants of different sizes and to those sat in different positions. Dummy readings of chest compression indicated marginal protection of the driver's chest. The improvements made by Mercedes-Benz to the side airbag deployment proved successful and the Citan scored maximum points in the side barrier test with good protection of all body regions. In the side pole impact, the airbag deployed correctly but protection of the chest was rated as marginal. There was a gap between the B-pillar and the front edge of the sliding door. Although this gap was smaller than in the original Citan test, a penalty was again applied to the score. The front seats and head restraints provided marginal protection against whiplash injury in the event of a rear-end collision.
Based on dummy readings in the dynamic tests, the Citan scored maximum points for its protection of both the 3 year and the 1½ year dummy. In the frontal test, forward movement of the 3 year old dummy, sat in a forward facing restraint, was not excessive and, in the side impact, both dummies were properly contained within the protective shells of their restraints, minimising the likelihood of head contact with parts of the car interior. The passenger airbag cannot be disabled, so a rearward-facing child restraint cannot be used in that seating position. Improvements made by Mercedes-Benz mean that all child restraints for which the car is designed can now be properly installed and accommodated.
Pedestrian test results were carried over from the original assessment. The bumper was predominantly good but the front edge of the bonnet provided poor protection in most of the areas tested. Adequate protection was provided by the bonnet over much of its surface but protection in those areas where an adult's head might strike was mostly poor.
The Citan is equipped with electronic stability control as standard equipment, and met Euro NCAP's test requirements. A seatbelt reminder is available for both front seats and the system was rewarded. A driver-set manual speed assistance system is available. Mercedes-Benz have changed the warning signal to include an audible signal and the system was rewarded in this re-assessment.