Cooling System Components, Body Side

Cooling system components - body side
1. Radiator
2. O-ring
^ Always replace
3. Upper coolant hose
4. Connector
5. Cap
^ Check with coolant system tester VAG1274 and adapter VAG1274/9
^ Pressure relief valve must open at a pressure of 1.4 to 1.6 bar
6. 2.5 Nm
7. Expansion tank
^ Perform leak test on coolant system with coolant system tester VAG1274 and adapter VAG1274/8
^ Test pressure: 1.4 to 1.6 bar
8. To coolant pipe
9. Air ducting
10. 5 Nm
11. Supplementary fan
12. Fan ring
13. Fan ring
14. Coolant fan
15. Bracket
^ For fan connectors.
16. Lower coolant hose
^ Secured to radiator with retaining clip
17. O-ring
^ Always replace
18. Coolant Fan Control (FC) Thermal Switch - F18-, 35 Nm
^ For electric fan
^ Switching temperatures:
1 Speed
on: 92...97°C
off: 84...91°C
2 Speed
on: 99...105°C
off: 91...98°C
19. Bracket
^ For bottom of radiator
^ Note installed position
20. Bracket
^ For top of radiator
^ Note installed position