Audi Workshop Service and Repair Manuals

Removing and installing coolant pipe (front) - vehicles with thermostat Special tools and workshop equipment required

t  Removal lever -80 - 200-

t  Hose clip pliers -VAS 6362-

Removing –  Remove oil filter bracket with engine oil cooler → Chapter. –  Remove battery → Electrical system; Rep. gr.27.

–  Remove bolts -arrows- and take out battery tray -1-.

–  Press release tabs and disconnect crankcase breather hose -1- from cylinder head cover. –  Move clear vacuum hoses -arrows- at air pipe. –  Remove bolt -2-, swivel air hose with connection to rear and detach from turbocharger.

–  Unclip wiring harness from retainer -arrow-.

–  Move clear wiring harnesses -arrows- and electrical connector -1- at bracket.

–  Remove bolts -2, 5- and -arrows-. –  Using removal lever -80 - 200-, move clear electrical wiring and hoses at air pipe (left-side). –  Loosen hose clip -3- and detach air pipe (left-side).   Note Disregard -items 1, 4-.

–  Release hose clips -1- and detach coolant hoses.   Note Disregard -items 2, 3, 4-.

–  Remove electrical connector -2- for Hall sender -G40- from bracket and unplug connector. –  Detach bracket from coolant pipe (front). –  Release hose clips -1- and -3- and disconnect coolant hoses. –  Remove bolts -arrows- and detach coolant pipe (front) from left side of cylinder block. Installing Installation is carried out in the reverse order; note the following: l  Tightening torques → Chapter „Coolant pipes, coolant temperature senders, coolant circulation pump - exploded view“   Note t  Renew gaskets, seals and O-rings. t  Hose connections and air pipes and hoses 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) → Electronic parts catalogue. –  Clean and smoothen sealing surface for O-ring. –  Lightly lubricate O-ring with coolant and slide O-ring onto coolant pipe (front). –  Push coolant pipe (front) into cylinder block. –  Install air pipe → Chapter. –  Install air hoses with screw-type clips → Fig.. –  Install intake connecting pipe → Chapter. –  Install battery mounting and battery → Electrical system; Rep. gr.27. –  Install oil filter bracket with engine oil cooler → Chapter. –  Fill up with coolant → Anchor.