This instructional package, one in a series of individualized instructional units on automobile air conditioning, consists of a student guide and an instructor guide dealing with air conditioning charging. Covered in the module are checking the air conditioning system for leaks, checking and adding refrigerant oil as needed, evacuating the system, recharging the system with freon, and adding a partial charge to a system without a sight glass. The student guide contains an introduction, a list of procedures for completing the unit, an information sheet, and a posttest. Included in the instructor guide are an introduction, performance objectives, a list of references, suggested instructional materials, and an instructional script. (MN)