Audi A4: Body Exterior

 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

 Exterior lighting

Switching the lights on and off Fig. 42 Instrument panel: light switch with button Light switch Turn the light switch (1) to the corresponding position when the ignition is switched on. The symbol and the selected position will turn on (except position 0). O - The daytime running lights* will