Audi Workshop Service and Repair Manuals

Removing and installing vacuum unit for exhaust gas recirculation cooler Special tools and workshop equipment required

t  Hand vacuum pump -VAS 6213-

Removing –  Pull off engine cover panel -arrows-.

–  Remove bolts -arrows-. –  Remove air ducts -1- and -2-.

–  Unplug electrical connector -1- at air mass meter -G70-. –  Loosen hose clip -2- to remove air intake hose. –  Move clear wiring harness at air cleaner housing and remove air cleaner housing -arrow-.

–  Detach vacuum hose -3- from vacuum unit for change-over flap for exhaust gas recirculation.   Note Coolant hoses -1- and -2- must not be detached.

–  Unscrew bolts -1- and nuts -2-. –  Remove bolts -arrows-. –  Move exhaust gas recirculation cooler to one side with coolant hoses attached.

–  Remove bolts -1- to -4- and detach vacuum unit with gasket.   Note Disregard hand vacuum pump -VAS 6213-. Installing Installation is carried out in the reverse order; note the following: Tightening torques → Chapter   Note t  Renew gaskets and self-locking nuts. t  Secure all hose connections with the correct type of hose clips (same as original equipment) → Parts catalogue.

–  Set sliding ring -1- to position -A- for vacuum function.

–  Set change-over flap -1- as shown in illustration using hand vacuum pump -VAS 6213-. –  Install vacuum unit with gasket and secure in position.