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501-25-2 Body Repairs - General Information 501-25-2 . PAGE 2 OF 2 Corrosion protection measures during repair work............................................................ Corrosion protection for the floor pan (example)................................................................ Corrosion Damage/Corrosion Repair................................................................................. Sealer, Underbody Protection Material and Adhesives...................................................... Cutting Technique............................................................................................................... Spot weld milling tool.......................................................................................................... Rod sander......................................................................................................................... Short stroke saw................................................................................................................. Orbital saw.......................................................................................................................... Panel Beating Technique and Smart Repairs..................................................................... General............................................................................................................................... Dent removal using special panel beating levers............................................................... Dynamic puller with counter bearing ................................................................................. Hollow leveling (removing dent without a dolly)................................................................. Dent removal using hammer and dolly............................................................................... Heat-induced material shrinking......................................................................................... Lead loading....................................................................................................................... Paintless Dent Removal..................................................................................................... Plastic Repairs.................................................................................................................... General............................................................................................................................... Plastic welding.................................................................................................................... Plastic adhesive bonding.................................................................................................... GRP repairs........................................................................................................................ Special Repair Techniques................................................................................................. Cabriolet vehicles............................................................................................................... Liquefied gas vehicles........................................................................................................ Refrigerated conversion vehicles....................................................................................... Joining Techniques............................................................................................................. Welding............................................................................................................................... MIG brazes......................................................................................................................... Soft soldering...................................................................................................................... Rivets.................................................................................................................................. Bonding.............................................................................................................................. Bonding and welding.......................................................................................................... Bonding and riveting........................................................................................................... Impact of Insufficient Repair Quality................................................................................... Water Leaks........................................................................................................................ General............................................................................................................................... Test method........................................................................................................................ Test with UV lamp............................................................................................................... Chalk/powder test............................................................................................................... Smoke test.......................................................................................................................... Stethoscope test................................................................................................................. Ultrasonic detection............................................................................................................ Ultrasonic test device......................................................................................................... Workflow for tracing water entry......................................................................................... Possible complaints and corrective actions........................................................................ Wind Noise......................................................................................................................... General information............................................................................................................ Diagnosis............................................................................................................................ Possible concerns with corrective measures..................................................................... Noise, Vibration and Harshness......................................................................................... 501-25-33 501-25-37 501-25-38 501-25-40 501-25-41 501-25-41 501-25-42 501-25-42 501-25-42 501-25-43 501-25-43 501-25-43 501-25-44 501-25-44 501-25-45 501-25-45 501-25-46 501-25-48 501-25-50 501-25-50 501-25-52 501-25-53 501-25-54 501-25-56 501-25-56 501-25-57 501-25-57 501-25-59 501-25-59 501-25-64 501-25-67 501-25-67 501-25-68 501-25-69 501-25-69 501-25-70 501-25-72 501-25-72 501-25-72 501-25-73 501-25-73 501-25-74 501-25-74 501-25-75 501-25-75 501-25-75 501-25-76 501-25-81 501-25-81 501-25-84 501-25-86 501-25-90