Connection Diagram - Coolant Hoses
WARNING: This page is about a different car, the 2010 Audi A5, 2009 Audi A5, and 2008 Audi A5. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Risk Of Scalding Due To Hot Steam And Hot Coolant.
- The coolant system is under pressure when the engine is warm.
- Cover the coolant reservoir cap with a cloth and then open it slowly to release the pressure.
NOTE:
Secure All Hose Connections With Hose Clamps Of The Same Type As Those Equipped By The Factory.
The arrows on the coolant pipes and ends of coolant hoses must align.
Vehicles without auxiliary heater
NOTE:
The Arrows Show The Coolant Flow Direction.
- Radiator
- Change the coolant after replacing
- Coolant Pump
- Engine Coolant Temperature Sensor -G62-
- Coolant thermostat
- Coolant Recirculation Pump -V50-
- activated by the Recirculation Pump Relay -J160-
- Removing and installing. Refer to the appropriate Service Information
- Cylinder Head and Cylinder Block
- Change the coolant after replacing
- Coolant Shut-Off Valve
- Is activated by the Climatronic Refrigerant Shut-Off Valve -N422-
- The Climatronic Refrigerant Shut-Off Valve -N422- is activated by the Climatronic Control Module -J255-.
- Removing and installing. Refer to appropriate service information.
- Bleeder hole
- Heater core for heater
- Removing and installing. Refer to FRONT HEATER AND A/C UNIT .
- Change the coolant after replacing
- Coolant Reservoir Cap
- Checking the pressure relief valve. Refer to PRESSURE RELIEF VALVE IN CAP, CHECKING .
- Coolant reservoir
- Engine Oil Cooler
- Change the coolant after replacing
- After-Run Coolant Pump -V51-
- Vehicles for countries with warm climates
- Check Valve
- Check Valve
Vehicles With Parking Heater (CANADA ONLY)
NOTE:
The Arrows Show The Coolant Flow Direction.
- Radiator
- Change the coolant after replacing
- Coolant Pump
- Engine Coolant Temperature Sensor -G62-
- Coolant thermostat
- Parking Heater (CANADA ONLY)
- With Recirculation Pump -V55-
- Removing and installing. Refer to appropriate service information. .
- Cylinder Head and Cylinder Block
- Change the coolant after replacing
- Climatronic Refrigerant Shut-Off Valve -N422-
- Removing and installing. Refer to appropriate service information.
- Activated via the Climatronic Control Module -J255-
- Bleeder hole
- Heater core for heater
- Removing and installing. Refer to HEATER CORE, REMOVING AND INSTALLING .
- Change the coolant after replacing
- Coolant Reservoir Cap
- Checking The Pressure Relief Valve. Refer to PRESSURE RELIEF VALVE IN CAP, CHECKING .
- Coolant reservoir
- Engine Oil Cooler
- Change the coolant after replacing
- After-Run Coolant Pump -V51-
- Vehicles for countries with warm climates
- Check Valve
- Check Valve