audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing thermostat > < Removing and installing radiator
6-Cylinder engine (5-valve turbo), Mechanics
Removing and installing parts of cooling system
Removing and installing coolant pump

Notes:

  • ◆ Always renew seals and gaskets.
  • ◆ Cover toothed belt with a cloth to protect it from coolant before removing coolant pump.

Removing

  • ‒ Remove front bumper:

=> General body repairs; Repair group 63; Front bumper; Removing and installing front bumper

  • ‒ Move lock carrier to service position

=> General body repairs; Repair group 50; Removing and installing lock carrier; Lock carrier service position

  • ‒ Remove ribbed belt .
  • ‒ Remove toothed belt => Page 13-5.
  • ‒ Drain coolant => Page 19-19.
 
A17-0078
  • ‒ → Remove the following components before unbolting the coolant pump:
  • ‒ 1- Tensioning roller for toothed belt: 20 Nm
  • ‒ 2- Idler wheel: 45 Nm

 
A19-0081
  • ‒ → Unbolt coolant pump from toothed belt guard -1- (2 nuts). Unscrew securing bolts -2- (9 bolts) for coolant pump and remove coolant pump.

Installing

Install in the opposite order to removing. When installing, note the following points:

  • ‒ Remove residues of sealant on sealing surfaces of coolant pump and cylinder block.
  • ‒ Clean the sealing surfaces; ensure that they are free of oil and grease.
 
A19-0081
  • ‒ Fit new gasket on coolant pump flange.
  • ‒ → Insert coolant pump into cylinder block and tighten all 9 securing bolts -2-.
  • ‒ Secure rear toothed belt guard at coolant pump housing -1- .

Tightening torque: 10 Nm.

  • ‒ Install toothed belt => Page 13-5.
  • ‒ Install ribbed belt => Page 13-1.
  • ‒ Install toothed belt guard.
  • ‒ Fill cooling system => Page 19-19.

Removing and installing thermostat > < Removing and installing radiator