Audi Workshop Service and Repair Manuals

Removing and installing secondary air pump

Removing –  Remove cover in front of intake manifold. –  Remove bolts -2- and -3- and detach retaining plate -4- from dipstick guide tube. –  Disengage coolant hose -1- from retaining plate. –  Move retaining plate to the side (hoses remain connected).

–  Loosen bolt -1- approx. 2 turns from top of engine compartment.   Note Shown in illustration with engine removed.

–  Unbolt bracket for headlight range control sender in wheel housing (left-side, top) -arrows-.

–  Remove centre noise insulation -arrows-.

–  Remove left noise insulation -arrows-.

–  Remove right noise insulation -arrows-.

–  If fitted, detach power steering line from connecting pipe for charge air coolers -arrows-.

–  Unbolt connecting pipe for charge air coolers on left side -arrows-.

–  Unbolt connecting pipe for charge air coolers on right side and detach air intake hoses from charge air coolers -arrows-. –  Remove connecting pipe for charge air coolers.

–  Unplug electrical connector at secondary air pump motor -V101-, detach hoses and remove nuts -arrows-. –  Detach secondary air pump.

–  Unscrew bolts -2- and -3- on bracket for secondary air pump. –  Swivel bracket aside and pull out secondary air pump downwards. Installing Installation is carried out in the reverse order; note the following:   Note 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) → Parts catalogue. Tightening torques

Component	Nm
Secondary air pump to bracket	10
Bracket for secondary air pump to cylinder block	40
Connecting pipe for charge air coolers to longitudinal member	20
Hose clips for air hoses	3.5