Connection Diagram - Coolant Hoses, Versions With Parking Heater
WARNING: This page is about a different car, the 2020 Audi A4 allroad, 2019 Audi A4 allroad, 2018 Audi A4 allroad, 2017 Audi A4 allroad, and 2017 Audi A4. 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
- Parking Heater
- With Recirculation Pump -V55-
- Heater Coolant Shut-Off Valve -N279-
- Heater Core for the Heater
- 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