Removing and installing impeller pump (vehicles with 6-cylinder engine) — AUDI

Note:

Vane pump uses hydraulic fluid, part no. G 002 000

Sequence of operations for attaching vane pump to holder:

Screw in cheese head bolts -
8
- and -
18
- loosely; then tighten cheese head bolts -
8
- then tighten cheese head bolts -
18
- to specified torque

Sequence of operations for attaching vane pump to holder on engine block:

Screw in cheese head bolts with washer -
7
- and bolts with washer -
17
- loosely; then tighten cheese head bolts with washers -
7
- to specified torque before employing the same procedure for bolts with washer -
17
-.

Expansion hose with pressure pipe
Unscrew from pipe to check pump pressure
Remove servo unit to replace
Note that there are different versions for LHD and RHD models.

Combi bolt, 10 Nm
Connecting piece with hole at intake manifold
For attaching pipe

Vane pump
Checking supply pressure => Page
48-102
Servicing is not envisaged
Before unscrewing suction hose pinch it off with hose clamp -3094-

Before installation fill vane pump with hydraulic fluid on suction end and turn by hand until fluid emerges from discharge end

Pulley
Unscrew to remove vane pump; this involves slackening ribbed belt => Fig
1
and
2

Cheese-head bolt, 25 Nm
Loosen bolts with belt tensioned

Combi screw, 25 Nm
Cheese-head bolt, 25 Nm
Holder for vane pump
To remove vane pump screw out bolts with washers -Item
7
- and -Item
17
- so that vane pump with holder can be taken out

Slip bushing on left in direction of travel discontinued together with cheese head bolt, Item
18

Ignition coils with bracket
Pull ignition cables out of ignition coils and unscrew from bracket for vane pump

Hexagon bolt, 25 Nm
Screw out and remove holder with ignition coils

Banjo bolt, 40 Nm
Oil seal
Always replace

Oil seal
Always replace
Attach to threaded bolt

Threaded connection, 50 Nm
Screw into vane pump

Clamp
Tension using V.A.G 1275
Can also be replaced by screw type hose clamp

Combi screw, 25 Nm
Cheese-head bolt, 25 Nm
Discontinued on left in direction of travel together with slip bushing

Bracket
Attached to cylinder head

Suction hose
Attached to holder -Item
19
-

Bolt with washer, 10 Nm

Fig.1
Slackening off ribbed belt

Unscrew ignition coils with holder, remove top belt guard
Press box wrench in arrow direction and insert setting mandrel -3204-

Note:

Mark direction of ribbed belt. The belt may break if it runs in opposite direction when refitted.

Remove ribbed belt from belt pulley.

Fig.2
Slackening off ribbed belt

New version

Unscrew ignition coils with holder, remove top belt guard
Press ratchet with Allen wrench in arrow direction and insert setting mandrel -3204 -through holes -A- and -B-
Pay attention to note above
Remove ribbed belt from belt pulley.