Coolant Pump And Thermostat Overview

Fig 1: Identifying Assembly Overview: Coolant Pump And Thermostat

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Bolt 
   • 9 Nm
   • Tightening sequence and specification. Refer to Fig 2.
2. O-ring 
   • Always replace.
   • Lubricate with coolant.
3. Connection 
4. Retaining Clip 
   • Only with the inserted version.
   • Make sure it is secure.
5. Bolt 
   • 4 Nm
   • Only with the threaded version.
6. Retaining Plate 
   • Only with the threaded version.
7. Engine Coolant Temperature Sensor -G62- 
   • Removing and installing, refer to Engine Coolant Temperature Sensor -G62- .
8. O-ring 
   • Always replace.
9. Coolant Pump 
   • Removing and installing, refer to COOLANT PUMP .
   • On a new coolant pump, remove the protective cap.
10. Gasket 
    • Always replace.
11. Centering Pin 
    • Quantity: 2
12. Toothed Belt 
    • For the coolant pump.
    • Removing and installing, refer to COOLANT PUMP TOOTHED BELT .
13. Toothed Belt Guard 
14. Bolt 
    • 9 Nm
15. Bolt 
    • 17 Nm
    • Always replace.
    • Has left hand threads
16. Toothed Belt Drive Gear 
    • Note the installed position: The collar on the drive gear faces the transmission.
17. Seal 
    • Removing and installing, refer to COOLANT PUMP DRIVE GEAR SEAL, REPLACING .
18. Balance Shaft 
19. Coolant Thermostat 
    • The coolant thermostat can be checked in "Guided Fault Finding" under "Function and Component Selection".
    • Removing and installing, refer to COOLANT THERMOSTAT .
20. Centering Pin 
21. O-ring 
    • Always replace.
22. Connecting Piece 
23. Bolt 
    • 9 Nm

Fig 2: Identifying Coolant Pump Tightening Sequence

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Special tools and workshop equipment required 

• Torque Wrench (5-50 Nm) V.A.G 1331

Procedure 

-- Tighten the coolant pump bolts in sequence -1 through 5-.

Tightening specification: 9 Nm