Audi Workshop Service and Repair Manuals

Removing and installing coolant pipe Special tools and workshop equipment required

t  Hose clip pliers -V.A.G 1921-

Removing –  Take off engine cover panel -arrows-. –  Drain off coolant → Chapter. –  Remove alternator → Rep. Gr.27.

–  Detach electrical connector -1-. –  Disconnect hoses -2- and -3- at secondary air pump. –  Detach secondary air pump -4- from bracket.

–  Unscrew bolts -1-, -2- and -4- and nut -3- on secondary air pump bracket. –  Move wiring clear -arrows- and remove the secondary air pump bracket.

–  Unplug electrical connectors and move wiring clear. 1 -  Knock sensor 1 -G61- 2 -  Engine speed sender -G28- 3 -  Ignition coil 1 -N- and ignition coil 2 -N128- with output stage -N122- 4 -  Oil pressure switch -F1- (on oil filter bracket) –  Remove ignition coils with output stages.

–  Unscrew bracket -3- for ignition coil. –  Remove crankcase breather pipe. –  Disconnect coolant hoses -arrows- at coolant pipe. –  Remove bolts -1- and -2- and detach coolant pipe. Installing Installation is carried out in the reverse order; note the following:   Note t  Renew gaskets, seals and O-rings. 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. –  Install alternator → Rep. Gr.27. –  Install secondary air pump → Chapter. –  Fill cooling system → Anchor. Tightening torques

Component	Nm
Coolant pipe to cylinder block	15
Bracket for ignition coil to cylinder block	15
Bracket for secondary air pump to intake manifold	23