Audi Workshop Service and Repair Manuals

Removing and installing coolant pump

Removing –  Remove coolant pipe (front) → Chapter. –  Detach coolant hose -2- (bottom) from thermostat housing. –  Remove bolts -arrows-. –  Remove housing with thermostat and detach coolant hose -1- (top) from housing with thermostat.

–  Slacken hose clip -1- on coolant hose. –  Remove bolts -arrows-. –  Pull off coolant pump housing forwards (note the drive shaft for coolant pump).   Note The coolant hose can only be disconnected when the coolant pump is removed.

–  Remove bolts -arrows-. –  Remove coolant pump -2- from housing -1-. Installing   Note t  Renew seals and O-rings. t  Secure all hose connections with the correct type of hose clips (same as original equipment) → Electronic parts catalogue.

–  Fit new O-rings -1- and -3-. –  Insert drive shaft -2- for coolant pump in the mounting for the oil pump on engine as far as stop.

–  Fit coolant pump in mountings on sump (top section) and retaining frame. When doing this, connect coolant hose -1- to front coolant pipe.   Note To fit the drive flange onto the hexagon flats of the drive shaft, use your finger to turn the impeller (access through the bottom pipe connection of coolant pump) until the coolant pump can be pressed on all the way. Remaining installation steps are carried out in reverse sequence; note the following: –  Install housing with thermostat → Chapter. –  Install coolant pipe (front) → Chapter. –  Fill cooling system → Anchor. Tightening torques

Component	Nm
Coolant pump to housing	9
Coolant pump housing to sump (top section)	9