Audi Workshop Service and Repair Manuals

Removing and installing coolant pipes (left-side) Special tools and workshop equipment required

t  Hose clip pliers -VAS 6362-

Removing –  Drain coolant → Chapter. –  Remove air cleaner housing → Rep. gr.24.

–  Unscrew bolts -2- and detach retaining bracket -1-. –  Unplug electrical connector -3- at charge pressure sender -G31- / intake air temperature sender 2 -G299-. –  Release retainers -arrows- and detach air pipe first from throttle valve module -J338- and then from turbocharger. –  Move clear hoses at air pipe and detach air pipe.

–  Detach coolant hoses -arrows- from thermostat housing.

–  Unplug electrical connector -arrow- on oil pressure switch -F1-.

–  Unplug electrical connector -1- at coolant temperature sender -G62-.   Note Disregard -item 2-.

–  Move clear electrical wiring harness at brackets -arrows-. –  Unscrew bolt -1- and move earth wiring clear.

–  Remove bolts -1- and -2- and disconnect coolant hoses -arrows-. –  Move coolant pipes (left-side) to rear and detach. Installing Installation is carried out in the reverse order; note the following: l  Tightening torques → Chapter „Coolant pipes - exploded view“   Note t  Fit new O-rings. t  Secure all hose connections with the correct type of hose clips (same as original equipment) → Electronic parts catalogue. –  Electrical connections and routing → Current flow diagrams, Electrical fault finding and Fitting locations. –  Install air pipe → Chapter. –  Install air cleaner housing → Rep. gr.24. –  Fill up with coolant → Anchor.