Audi A4: Body Exterior

 Sun Visor, Removing and Installing

Special tools and workshop equipment required Angled Screwdriver -VAS6416- Removing - Unclip the sun visor mount expanding cap -1- in the direction of -arrow- by sliding the -VAS6416- just approximately 1 mm under the cap.   Note If the -VAS6416- is inserted farther, it will be locat

 A/C Technology Basic Principles

Physical Principles The four known states of water also apply to air conditioning system refrigerants. 1 - Gaseous (invisible) 2 - Vapor 3 - Liquid 4 - Solid When water is heated in a container (heat absorption), water vapor can be seen to rise. If the vapo