Servicing suspension — AUDI

Note:

Loadbearing and suspension elements are not to be welded and straightened.

Subframe
4-, 5- and 6-cylinder engines have different versions
Align front axle after removing and installing
Attachment of rear subframe on vehicles with 6-cyl. engine => Page
40-65
Tighten fastening screws on bodywork in following order:

Viewed in direction of travel

1. Rear left
2. Rear right
3. Front left
4. Front right

Anti-rollbar
Drive vehicle onto platform to facilitate assembly
Before screwing to bracket make sure distance from subframe is the same on both sides
ø 25 mm, for vehicles with 4- and 5-cylinder engine, ø 26 mm for vehicles with 6-cylinder engine and Avant

Mounting
Apply talc when fitting
Note that there are different Ids:

Clip
Pay attention to proper seating of anti-roll bar bearing on attachment

Self-locking bolts, 35 Nm
Always replace

Combi bolt
Always replace

Front bearings for subframe
Removing front bearing => Fig.
3
Fitting front bearing => Fig.
4
Apply anti- friction assembly oil G 294 421 A1 beforehand
Note different versions depending on engine

Shim
Always replace

Hexagon bolt
Always replace
Tighten M10 bolts to 35 Nm and then turn a further 90o
Tighten M12 bolts to 70 Nm and then turn a further 90o
Drill out sheared-off M10 bolts and rework with threading tool KNM 10 x 1.5 mm; drill out sheared off M12 bolts and rework with threading tool KNM 12 x 1.5 mm

=> Special information No. 3; Edition 01.91

Fit new genuine bolt

Wishbone bearing
Pressing out => Fig.
1
Pressing in => Fig.
2
Sheet steel and forged wishbones have different bearings

Sheet steel wishbone
Forged wishbone => Page
40-61
Different versions on left and right

Note:

Vehicles with 6-cylinder engine with vehicle no. 8C NA 000 325 and 8C NA 175 592 feature forged wishbones. When repairing always install same wishbones on a given axle.

Self-locking nut
Always replace
Tigthen to 40 Nm and then turn through 180o
Vehicle must be standing on wheels when tightening.

Hexagon bolt
Rear subframe bearings
Note different versions depending on engine

Vehicles with 4 and 5 cylinder engine:

Removing rear bearing => Fig.
5
Fitting rear bearing => Fig.
6

Vehicles with 6 cylinder engine:

Removing rear bearing => Fig.
7
Fitting rear bearing => Fig.
8

Note:

On all vehicles with 6-cylinder engine the rear bearings are inserted in the subframe from underneath asItem
7
.

Connecting link
Attach to anti roll bar

Self-locking nut 40 Nm
Always replace

Self-locking nut 50 Nm
Always replace

Bonded rubber bush
Attach to bracket of subframe
Note that there are different versions:
Different attachment of right bush => Fig.
9

Self-locking nut 25 Nm
Always replace

Hexagon bolt
Always replace
Head of bolt faces in direction of travel

Tab washer
Replacement part is supplied with bolt

Lower ball joint
Lower ball joint must correspond to wishbone (sheet steel or forged)
On disassembly do not widen slot at wheel bearing housing
Different versions on left and right
Install joint with odd part no. on left and even part no. on right
Diameter of track control arm joint 19 mm
Align front axle after installing
Setting camber => Page
44-23

Packing plate
Self-locking nut 65 Nm
Always replace

Fig.1
Pressing out bearing for wishbone

Fig.2
Pressing in bearing for wishbone

Press mounting in to stop.

Fig.3
Remove front subframe bearing

Note:

Turn pipe -3301/4- such that large recess is at bracket for wishbone attachment.

Warning!
On removal bearing and tool may suddenly jump out of subframe (danger of injury).

Fig.4
Fitting front subframe bearing

Apply anti-friction assembly oil G 294 421 A1 beforehand

Note:

Large collar of thrust piece -3301/2- faces bearing

Vehicles with 4 and 5 cylinder engine:

Fig.5
Removing rear subframe bearing

Warning!
On removal bearing and tool may suddenly jump out of subframe (danger of injury).

Fig.6
Fitting rear subframe bearing

Apply anti- friction assembly oil G 294 421 A1 beforehand

Vehicles with 6 cylinder engine:

Fig.7
Removing rear subframe bearing

Note:

Turn pipe -3301/3- such that recess is at bracket for wishbone attachment.

Warning!
On removal bearing and tool may suddenly jump out of subframe (danger of injury).

Fig.8
Fitting rear subframe bearing

Apply anti-friction assembly oil G 294 421 A1 beforehand

Note:

Small collar of thrust piece -3301/2- faces bearing

Vehicles with manual gearbox and diesel engine as well as 85 kW petrol engine:

Fig.9
Different attachment of right bonded rubber bush to subframe

The above vehicles feature two washers (arrows a) in each case between subframe and bonded rubber bush.