Connection Diagram - Coolant Hoses
WARNING: This page is about a different car, the 2024 Audi Q3 and 2023 Audi Q3. 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.
- Yellow = transmission coolant circuit.
- Arrows = coolant flow direction.
- Radiator
- Engine Coolant Temperature Sensor on Radiator Outlet -G83-
- Engine Temperature Control Actuator -N493-
- Cylinder Head/Cylinder Block
- Restrictor
- Parking/Auxiliary Heater
- Equipped on some models
- Coolant Expansion Tank
- Coolant Expansion Tank Cap
- Pressure Relief Valve, Checking. Refer to COOLING SYSTEM, CHECKING FOR LEAKS .
- Check Valve
- Exhaust Manifold
- Integrated in cylinder head
- Turbocharger
- Heater Core for the Heater
- Restrictor
- Check Valve
- After-Run Coolant Pump -V51-
- Engine Coolant Temperature Sensor -G62-
- Restrictor
- Coolant Pump
- Transmission Fluid Cooler
- For vehicles with a dual-clutch transmission
- Transmission Coolant Valve -N488-
- For vehicles with a dual-clutch transmission
- Check Valve