Connection Diagram - Coolant Hoses, Versions Without Parking Heater
WARNING: This page is about a different car, the 2020 Audi A5 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
- Blue = large coolant circuit.
- Red = small coolant circuit.
- Brown = heating circuit.
- Green = coolant circuit for the transmission.
- Arrows = coolant flow direction.
- Radiator
- Cylinder Block
- Check Valve
- Turbocharger
- Check Valve
- Exhaust Manifold
- Cylinder Head
- Engine Coolant Temperature Sensor -G62-
- Restrictors
- Check Valve
- Coolant Shut-Off Valve
- Controlled by a vacuum from the Climatronic Refrigerant Shut-Off Valve -N422-
- Heater Core for the Heater
- Coolant Recirculation Pump -V50-
- Coolant Pump
- Coolant Thermostat
- For transmission coolant circuit
- For versions with dual-clutch transmission
- ATF Cooler
- For versions with dual-clutch transmission
- After-Run Coolant Pump -V51-
- For versions with dual-clutch transmission
- Restrictor
- Cap
- Checking the pressure relief valve. Refer to COOLING SYSTEM, CHECKING FOR LEAKS .
- Coolant Expansion Tank
- Check Valve
- Engine Coolant Temperature Sensor on Radiator Outlet -G83-
- Engine Temperature Control Actuator -N493-
- Engine Oil Cooler