Opel OPEL INSIGNIA Manuals Opel OPEL INSIGNIA Pdf User Manuals. View online or download Opel OPEL INSIGNIA User Manual, Owner's Manual Opel Insignia Repair Manual free download | Car Manuals Club Opel Insignia – repair manual and maintenance guide, wiring diagrams, instruction manual. This repair manual clearly describes fault diagnosis methods. The unique ways of troubleshooting possible malfunctions are thoroughly described. Because of this, you can safely travel without fear of damage, as be able to fix them yourself in any conditions.