Restraint/emergency tensioning retractor system
The emergency tensioning retractor in the W204 is a new design of toothed rack retractor tensioner. The functioning principle is based on the fact that an integrated toothed rack, which is fired pyrotechnically, unwinds via a cogwheel connected to the seat belt retractor and thus initiates the belt tensioning.
An integrated, mechanically operating belt force limiter is responsible for generating belt forces which are initially slightly elevated but which then diminish as soon as the airbag has been fully inflated. |
Mercedes-Benz C-Class (W205) 2015 - 2021 Owners Manual > Occupant safety: Restraint system
Protection by the restraint system The restraint system includes the following components: Seat belt system Airbags Child restraint system Child seat securing system The restraint system can reduce the risk of vehicle occupants coming into contact with parts of the vehicle's interior in the event of ...