Mercedes Benz Truck R 320 BLUETEC Technical S-91_16-177A Date: 090511 Restraints - Active Head Restraints Self-Activate
Mercedes Benz Truck R 320 BLUETEC Technical S-91_16-177A Date: 090511 Restraints - Active Head Restraints Self-Activate Date: May 11, 2009 Order No.: S-B-91.16/177a Supersedes: T-B-91.16/177 dated Oct. 9, 2008 Group: 91 Revision History Revision Date Purpose a 5/11/09 Applicable Models (221) and Images Added / Repair Information Revised - 10/9/08 Initial issue SUBJECT: Model 164.122/125/172/175/177/186/822/825/871/886 Model 221.171/176/177/179/186 Model 251.122/125/156/165/175/177 Active Head Restraints Activates Without Obvious Cause Mercedes Benz Truck R 320 BLUETEC Page 246 If you receive customer reports in the above model vehicles of the active head restraint activating without any obvious reason (accident, etc), and/or any of the fault codes listed are stored in the airbag control unit, this may be caused by damage to the seat wiring harness causing a short circuit. Follow the steps below to resolve. Model 164 / 251 1. Remove the seat back lining of the affe...