Audi Workshop Service and Repair Manuals

Removing and installing oil pump Special tools and workshop equipment required

t  Puller -T10055-

t  Locking pin -T40026- t  Drill bit, Ø 5 mm t  Sealant → Parts catalogue t  Locking fluid → Parts catalogue

Removing –  Remove sump (bottom section) → Chapter.   Caution The engine must only be turned at the crankshaft, in the direction of normal engine rotation (clockwise). –  Turn crankshaft at central bolt on crankshaft sprocket in direction of engine rotation to TDC mark. l  Notch -1- should align with marking -2-.

–  If fitted, unplug electrical connector at continued circulation coolant pump -V51-. –  Unscrew plug for TDC marking from cylinder block. –  Screw locking pin -T40026- into bore; if necessary, turn crankshaft backwards and forwards slightly to fully centralise locking pin.

–  Remove bolts -3- and -6- and take out oil pipes.   Note Some oil will come out when oil pipes are removed. –  Unscrew bolts -1-, -2-, -4- and -5- and remove baffle plate (front).

–  Remove bolt -4- and take out balance shaft drive gear -3-. –  Remove diamond-coated washer from drive gear. –  Remove bolts -1- and -2- and nuts -5- and -6-.

–  Screw puller -T10055- alternately into M8 threaded drillings -arrows- on oil pump, and pull oil pump off cylinder block.

Installing Installation is carried out in the reverse order; note the following:   Note t  Renew gaskets, seals and O-ring. t  Make sure to clean remaining locking fluid off threads of studs -3- after removing oil pump. t  This can be done using a thread tap. –  Renew O-ring -arrow 1-. –  Apply sealant around hole -arrow 2-.

–  Renew bolts -1- and -2- and nuts -5- and -6- securing oil pump. –  Apply locking fluid to nuts -5- and -6- before installing. –  Tighten all four oil pump mountings uniformly to ensure that dowel pin goes in squarely. –  Tighten mountings to final torque. –  Renew diamond-coated washer on drive gear for balance shaft -3-. –  Insert flange of drive gear (for balance shaft) through chain sprocket and onto oil pump shaft. –  Screw in bolt -4- but do not tighten.   Note

To install drive gear, press back piston of chain tensioner using a screwdriver -arrow-.

–  Wrap insulating tape around tip and shaft of 5 mm Ø drill bit to avoid cuts. –  Turn balance shaft -2- until a Ø 5 mm drill bit -item 3- can be inserted in locating hole. –  Tighten bolt -1-. –  Pull drill bit out of locating hole. –  Remove locking pin -T10026- and screw plug for TDC marking into cylinder block together with new O-ring.

–  Install baffle plate (front): fit bolts -1-, -2-, -4- and -5-. –  Install oil pipes: fit bolts -3- and -6-. –  Install sump (bottom section) → Anchor. Tightening torques

Component		Nm
Oil pump to cylinder block	Nuts	20 + 120° 1)2)
	Bolts	22 3)
Drive gear for balance shaft to oil pump		20 + 90° 3)4)
Baffle plate (front) to sump (top section)		10
Oil pressure pipe to sump (top section)		10
Sealing plug in cylinder block		25
l  1) Install nuts using locking fluid; locking fluid → Parts catalogue. l  2) 120° = one third of a turn. l  3) Renew bolts. l  4) 90° = a quarter of a turn.