Connection Diagram - Coolant Hoses
WARNING: This page is about a different car, the 2018 Audi TT Quattro. However, it is still accessible from the selected car via links, so may be relevant.
- Blue = Large coolant circuit.
- Red = Small coolant circuit.
- Orange = Turbocharger coolant circuit
- Green = Coolant circuit for the transmission.
- Arrows = Coolant flow direction.
- With the engine stationary and the caster active, the after-run coolant pump creates a reversal of the flow direction of the coolant in connection with the switched cooling circuit solenoid valve.
- Radiator
- Right Auxiliary Radiator
- For the coolant
- Check Valve
- The arrow points in the flow direction
- Coolant Thermostat With Housing
- Coolant Pump
- Cylinder Head/Cylinder Block
- Coolant Expansion Tank
- With cap and pressure relief valve
- Checking the pressure relief valve. Refer to COOLING SYSTEM, CHECKING FOR LEAKS .
- Heater Core for the Heater
- Volume Flow Limiter
- Turbocharger
- Engine Coolant Temperature Sensor -G62-
- Engine Oil Cooler
- Engine Temperature Control Sensor -G694-
- Coolant Thermostat
- For transmission coolant circuit
- After-Run Coolant Pump -V51-
- Coolant Shut-Off Valve -N82-
- Heater Core
- For transmission fluid
- Left Auxiliary Radiator
- For transmission coolant circuit