Connection Diagram - Coolant Hoses, Vehicles With Two Turbochargers Without Selective Catalytic Reduction System With Parking Heater

WARNING: This page is about a different car, the 2015 Audi A7 Quattro and 2014 Audi A7 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.

Orange = cylinder block coolant circuit.

Brown = heating circuit.

The arrows show the coolant flow direction.

Fig 1: Coolant Hose Connection Diagram

Courtesy of AUDI OF AMERICA, LLC

Radiator
Engine Coolant Temperature Sensor on Radiator Outlet -G83-
Map Controlled Engine Cooling Thermostat -F265-
Cylinder block
- Cylinder bank 1 (right)
Parking Heater
- With Recirculation Pump -V55-
Check Valve
- Removing and installing, refer to CHECK VALVE, REMOVING AND INSTALLING, CYLINDER BANK 2 (LEFT) .
Cylinder Head
- Cylinder bank 1 (right)
Check Valve
Engine Coolant Temperature Sensor -G62-
Heater Coolant Shut-Off Valve -N279-
- Removing and installing, refer to HEATER COOLANT SHUT-OFF VALVE -N279-, REMOVING AND INSTALLING .
Bleed Screw
Heater core for heater
- Removing and installing, refer to HEATER CORE, REMOVING AND INSTALLING .
Coolant Recirculation Pump -V50-
- Removing and installing, refer to COOLANT RECIRCULATION PUMP -V50-, REMOVING AND INSTALLING .
Coolant thermostat
- for ATF cooler
turbocharger assembly
ATF Cooler
- Removing and installing, refer to AUTOMATIC TRANSMISSION FLUID (ATF) COOLER, REMOVING AND INSTALLING .
Check Valve
EGR Cooler
Check Valve
Cylinder Head
- Cylinder bank 2 (left)
Cap
- Checking the pressure relief valve Pressure Relief Valve in Cap, Checking .
Coolant reservoir
Check Valve
- Removing and installing, refer to CHECK VALVE, REMOVING AND INSTALLING, CYLINDER BANK 2 (LEFT) .
Cylinder block
- Cylinder bank 2 (left)
Coolant Shut-Off Valve
Engine Temperature Control Sensor -G694-
Engine Oil Cooler
Coolant Pump
Coolant Auxiliary Cooler
- Equipment levels
Check Valve