Connection Diagram - Coolant Hoses, AUDI A4/A5/Q5 Without Parking/Auxiliary Heater
WARNING: This page is about a different car, the 2022 Audi SQ5, 2022 Audi Q5 e, 2022 Audi Q5, and 2021 Audi Q5. 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-
- Restrictor
- Heater Core for the Heater
- Coolant Recirculation Pump -V50-
- Coolant Pump
- Coolant Thermostat
- For transmission coolant circuit
- For version with dual clutch transmission
- ATF Cooler
- For version with dual clutch transmission
- After-Run Coolant Pump -V51-
- For version with dual clutch transmission
- Check Valve
- Restrictor
- Cap
- Check 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