Audi A4: Body

 Coolant System/Coolant

Connection Diagram - Coolant Hoses Connection Diagram - Coolant Hoses, Versions without Parking Heater   Note Blue = large coolant circuit. Red = small coolant circuit. Brown = heating circuit. Green = coolant circuit for the transmission. The arrows show the coolant flow direction. 1&

 Safety Precautions

Safety Precautions when Working on Vehicles with Start/Stop System There is a risk of injury due to the engine starting unexpectedly. The engine can start unexpectedly on vehicles with an activated Start/Stop System. A message in the instrument cluster indicates whether the Start/Stop System is a