Connection Diagram - Coolant Hoses, Vehicles Without Transmission Fluid Heater, Without Parking Heater
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2016 Audi A4 Quattro, 2016 Audi A4, 2015 Audi A4 Quattro, 2015 Audi A4, and 2014 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Blue = large coolant circuit.
Red = small coolant circuit.
Brown = heating circuit.
- Radiator
- Turbocharger
- Cylinder Head/Cylinder Block
- Coolant Shut-Off Valve
- Controlled by a vacuum from the Climatronic Refrigerant Shut-Off Valve -N422-
- Bleeder Hole
- Heater Core for Heater
- Removing and installing. Refer to HEATER CORE, REMOVING AND INSTALLING .
- Coolant Recirculation Pump -V50-
- Installed only on vehicles with a start/stop system
- Coolant Pump
- Removing and installing. Refer to COOLANT PUMP, REMOVING AND INSTALLING .
- Restrictor
- Coolant Reservoir Cap
- Checking the pressure relief valve. Refer to PRESSURE RELIEF VALVE IN CAP, CHECKING .
- Coolant Reservoir
- Check Valve
- After-Run Coolant Pump -V51-
- Installed only on hot climate vehicles
- Coolant Thermostat
- Engine Coolant Temperature Sensor -G62-
- Engine Oil Cooler