Audi A4: Electrical System

 General Information

High pressure side are the condenser, receiver/dryer and restrictor or expansion valve to separate the high and low pressure liquid ends. High pressure results from the restrictor or expansion valve forming a constriction and causing the refrigerant to accumulate, thus leading to an increase in

 Child safety lock

The child safety lock prevents the rear doors from being opened from the inside and the rear power windows from being operated. Fig. 37 Drivers door: controls Applies to: vehicles with manual child safety locks Fig. 38 Rear door: manual child safety lock Vehicles with button Applies to: vehicles