Mercedes Benz Truck R 320 BLUETEC Technical LI91-10_P-0484113 Date: 120921 Interior - Pneumatic 4-Way Lumbar Support Fails Failure of pneumatic 4-way lumbar support
Mercedes Benz Truck R 320 BLUETEC Technical LI91-10_P-0484113 Date: 120921 Interior - Pneumatic 4-Way Lumbar Support Fails Failure of pneumatic 4-way lumbar support Topic number LI91.10-P-048411 Version 3 Design group 91.10 Front seats Date 09-21-2012 Validity Model series 204, 212, 218, 207, 164, 251 with pneumatic lumbar support! Not valid for code 409 or 432 (multicontour or dynamic seat) Reason for change Part number for pressure tester corrected Complaint: The pneumatic 4-way lumbar support fails. Mercedes Benz Truck R 320 BLUETEC Page 10 Lumbar support pockets cannot be filled up or they drain. (Lumbar support on multicontour seat / dynamic seat not affected!) Cause: Component defect in lumbar support control unit. Remedy: Precise fault location: Check whether the air pockets exhibit a leakage before replacing any components. 1. Remove tensioning element of affected seat 2. Cut through red and yellow air lines at a point 5 cm after the connector (see IMG_21...