Coolant hose connection diagram
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 Audi S4, 2008 Audi S4, 2007 Audi S4, 2006 Audi S4, and 2005 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.
1 - Right auxiliary cooler
- Removing and installing → Right auxiliary cooler, removing and installing
- Replace coolant after replacing
2 - Not installed
3 - Coolant regulator for auxiliary cooler
4 - Oil cooler
- Removing and installing → Oil cooler, removing and installing
5 - Cylinder head/cylinder block
- Renew coolant after replacing
6 - Heater core
- Replace coolant after replacing
7 - Bleeder hole
- At coolant hose to heater core
8 - Cap
- Pressure relief valve in cap, checking Pressure relief valve in cap, checking
9 - Coolant expansion tank
10 - Not installed
11 - Left auxiliary cooler
- Removing and installing → Left auxiliary cooler, removing and installing
- Renew coolant after replacing
12 - Non-return valve
- Opens in direction of arrow, locks against direction of arrow
13 - Radiator
- Removing and installing → Radiator, removing and installing
- Replace coolant after replacing
14 - Coolant thermostat
- Removing and installing → Coolant thermostat, removing and installing
- Checking → Thermostat, checking
15 - Coolant pump
- Removing and installing → Coolant pump, removing and installing
16 - Generator