Audi Workshop Service and Repair Manuals

Removing and installing coolant pipe (bottom) Special tools and workshop equipment required

t  Hose clip pliers -VAS 6362-

Removing –  Drain off coolant → Chapter. –  Unclip cover caps. –  Unscrew nuts -arrows- and detach engine cover panel. Also pull out dipstick if necessary. –  Remove insulation beneath cover panel (if fitted).

–  Unplug electrical connector -1-. –  Move aside fuel hoses at air pipe. –  Remove bolt -2-. –  Remove air pipe -arrows-.

–  Unclip fuel pipe brackets -1- at bottom coolant pipe. –  Detach coolant hoses -2- and -3-. –  Move wiring clear of bottom coolant pipe.

–  Unscrew bolts -1- and -2- and pull coolant pipe out of cylinder block -arrow-. Installing Installation is carried out in the reverse order; note the following:   Note t  Renew O-ring. 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) → Electronic parts catalogue. t  To ensure that the charge air hoses can be properly secured at their connections, spray rust remover onto the worm thread of used hose clips before installing. –  Clean and smoothen sealing surface for O-ring as required. –  Lubricate new O-ring -1- with coolant additive and slide onto coolant pipe. –  Push coolant pipe into bore on cylinder block.

–  When installing air intake hoses with plug-in connectors, ensure that the securing clip -arrow- engages audibly on the retaining lug -A-. –  Fill cooling system → Anchor. Tightening torques

Component		Nm
Coolant pipe	Oil filter bracket	10
to:	Cylinder block	40