Connection Diagram - Coolant Hoses, Vehicles With 3.0L Engine, Without Parking Heater
WARNING: This page is about a different car, the 2024 Audi S5, 2024 Audi RS 5, 2023 Audi S5, and 2023 Audi RS 5. However, it is still accessible from the selected car via links, so may be relevant.
- Blue = large coolant circuit.
- Red = small coolant circuit.
- Orange = cylinder block coolant circuit
- Brown = heating circuit.
- Green = coolant circuit for the transmission.
- Arrows = coolant flow direction.
- Radiator
- Engine Coolant Temperature Sensor on Radiator Outlet -G83-
- Engine Coolant Temperature Sensor on Engine -G82-
- Coolant Shut-Off Valve
- Vacuum-controlled
- Engine Temperature Control Sensor -G694-
- Cylinder Head
- Cylinder Bank 1 (Right)
- Cylinder Block
- Bleed Hole
- Heater Core for the Heater
- Coolant Recirculation Pump -V50-
- After-Run Coolant Pump -V51-
- Cap
- Checking the pressure relief valve. Refer to COOLING SYSTEM, CHECKING FOR LEAKS .
- Coolant Expansion Tank
- Coolant Thermostat
- For the ATF coolant circuit
- ATF Cooler
- Check Valve
- Turbocharger
- Restrictor
- Engine Oil Cooler
- Cylinder Block
- Cylinder Head
- Cylinder Bank 2 (Left):
- Engine Coolant Temperature Sensor -G62-
- Restrictor
- Restrictor
- Map Controlled Engine Cooling Thermostat -F265-
- Coolant Pump
- Activated by the Mechanical Coolant Pump Switch Valve -N649-
- Auxiliary Radiator
- Equipped on some models
- Check Valve