Audi A4: Laws and Regulations

 During a phone call

Applies to: vehicles with telephone Depending on your mobile device and the type of connection, the following options may be available during a call: End call Mute Sending a tone sequence Press Numbers. You can enter tone sequences (DTMF) and send them to the other party on the call. Hold Puts t

 Refrigerant Circuit, Tracing Leaks Using Electronic Leak Detector

Vehicles with a High Voltage System (Hybrid Vehicles) Read and follow all of the supplemental warnings for all work performed on vehicles with the high voltage system. Refer to → Chapter "Warnings when Working on Vehicles with High Voltage System" and → Electrical Equipment;