Audi Workshop Service and Repair Manuals

Removing and installing coolant pump

Removing –  Remove poly V-belt → Chapter. –  Remove poly V-belt tensioner -arrows-. –  Remove toothed belt from camshaft sprocket → Chapter.

–  Disconnect air pipe at bottom of right-hand longitudinal member -arrows- (air pipe leads to charge air cooler).

–  Remove noise insulation panels (centre and right) -arrows-. –  Drain off coolant → Chapter. –  Remove centre section of toothed belt cover → Item.   Note t  Vibration damper and bottom section of toothed belt cover can remain installed. t  The toothed belt should be left in position on the crankshaft sprocket. t  Before removing coolant pump, cover toothed belt with a cloth to protect against coolant.

–  Remove bolts -1- and detach coolant pump -2-. Installing Installation is carried out in the reverse order; note the following:   Note t  Renew seals and gaskets. t  Hose connections and hoses for charge air system must be free of oil and grease before assembly. t  Secure all hose connections with the correct type of hose clips (same as original equipment) → Parts catalogue. –  Clean and smoothen sealing surface for O-ring as required.

–  Lubricate new O-ring -3- with coolant additive “G12+”. –  Fit coolant pump -2-. l  Sealing plug in housing faces downwards. –  Tighten bolts -1- for coolant pump. –  Install toothed belt (adjust valve timing) → Anchor. –  Install poly V-belt → Chapter. –  Fill cooling system → Anchor. Tightening torques

Component	Nm
Coolant pump to cylinder block	15
Toothed belt cover (centre) to cylinder block	10 1)
Tensioner for poly V-belt to bracket for ancillaries	23
Hose clips for air hoses	3.5
l  1) Install using locking fluid; locking fluid → Parts catalogue.