Overview - Coolant Pipes

Fig 1: Identifying Coolant Pipes Overview

Courtesy of AUDI OF AMERICA, LLC

1. Front Coolant Pipe
   • Removing and installing. Refer to FRONT COOLANT PIPE, REMOVING AND INSTALLING .
2. O-ring
   • Always replace
3. Bolt
   • 9 Nm
4. Right Coolant Pipe
   • Removing and installing. Refer to RIGHT COOLANT PIPE, REMOVING AND INSTALLING .
5. Nut
   • 9 Nm
6. Bolt
   • 9 Nm
7. Right Coolant Pipe on the Transmission
   • Removing and installing. Refer to RIGHT COOLANT PIPE ON TRANSMISSION, REMOVING AND INSTALLING .
8. Bolt
   • Tightening specification. Refer to OVERVIEW - SUBFRAME .
9. Bolt
   • 9 Nm
10. O-ring
    • Always replace
11. Bolt
    • 9 Nm
12. Upper Rear Coolant Pipe
    • Depending on the version with additional threaded connection
    • Removing and installing. Refer to UPPER REAR COOLANT PIPE, REMOVING AND INSTALLING .
13. Bolt
    • 9 Nm
14. O-ring
    • Always replace
15. Bolt
    • 9 Nm
16. Lower Rear Coolant Pipe
    • Removing and installing. Refer to LOWER REAR COOLANT PIPE, REMOVING AND INSTALLING .
17. Nut
    • 9 Nm
18. Upper Left Coolant Pipe
    • Removing and installing. Refer to UPPER LEFT COOLANT PIPE, REMOVING AND INSTALLING .
19. Bolt
    • 9 Nm
20. Lower Left Coolant Pipe
    • Different versions. For the correct allocation. Refer to Parts Information.
    • Removing and installing:
      • Refer to LEFT LOWER COOLANT PIPE, REMOVING AND INSTALLING, VEHICLES THROUGH MY 2013 
      • Refer to LEFT LOWER COOLANT PIPE, REMOVING AND INSTALLING, VEHICLES FROM MY 2014 
21. Bolt
    • 9 Nm
22. Bolt
    • 9 Nm
23. O-ring
    • Always replace

Tightening Specifications - Lower Left Coolant Pipe for Vehicles from MY 2014 

Fig 2: Lower Left Coolant Pipe Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts -1, 2 and 3- to 23 Nm.