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Mercedes Benz C-Class (W204) 2007 - 2014 Training Manual > Body and Safety: Front Emergency Tensioning Retractors
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 ...