AUDI A6 1999 C5 / 2.G 01E Transmission Clutch Service Workshop Manual

30-36


Clutch, servicing

Special tools, testers and auxiliary items
required

Flywheel retainer 10-201

Thrust pad 3062
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30-37


Notes:
Parts catalog
Centering mandrel 3176 Grease G 000 100Observe general repair notes Page 00
-11
.
For vehicles with V6 2.7 L-Biturbo engine, a SAC-clutch plate (self
adjusting clutch plate) is installed, on which an adjustment ring must
be reset except during replacement Page 30
-42
.
Replace clutch plates and pressure plates with damaged or loose
rivets. Select the correct clutch plate and pressure plate according to engine
code: Clean input shaft splines and (in the case of used clutch plates) the
hub splines. Remove corrosion and apply only a very thin coating of
grease G 000 100 to the splines. Then move clutch plate to and fro on
input shaft until hub moves freely on shaft. Excess grease must be
removed. Pressure plates have an anti-corrosion coating and are greased. Only
the contact surface may be cleaned, otherwise the service life of the
clutch will be considerably reduced. If the clutch has burned out, thoroughly clean the bellhousing, flywheel
and parts of the engine facing the transmission to reduce the smell of
burned linings.
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Clutch (SAC pressure plate) for vehicles
with 6-cylinder 2.7 liter bi-turbo engine

Before working on the clutch, the transmission must
be removed Page 34
-18
.
Repair Manual, 2.7 Liter V6 5V BiTurbo Engine
Mechanical, Engine Code(s): APB, Repair Group 13
1 -
Dual-mass flywheel
Ensure centering pins are tightly seatedContact surface for clutch lining must be
free of grooves, oil and grease Removing and installing
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Repair Manual, 2.7 Liter V6 5V BiTurbo Engine
Mechanical, Engine Code(s): APB, Repair Group 13
2 -
Bolt
Vehicles with dual-mass flywheel: tighten
bolt to 60 Nm, then turn a further 180 Always replace
3 -
Clutch plate
Install with spring pack (coil springs) or the
word "Getriebeseite" towards pressure
plate and transmission Centering Page 30
-45
Do not greaseClutch plate diameter from Page 00
-3
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30-40


Repair Manual, 2.7 Liter V6 5V BiTurbo Engine
Mechanical, Engine Code(s): APB, Repair Group 13
4 -
SAC pressure plate
Removing and installing Page 30
-45
Resetting adjuster ring Page 30
-42
Checking ends of diaphragm spring Fig. 1 Checking spring connection and riveted
fastenings
5 -
Bolt, 22 Nm Tighten gradually in diagonal sequence
and in several stages
6 -
Needle roller bearing Removing and installing
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30-41


Note:
In case of repair, always allocate clutch pressure plate and clutch disc to
engine code according to to parts catalog. Fig. 1 Checking ends of diaphragm springs
Wear up to half of the diaphragm spring thickness is permissible
- Check diaphragm springs and spring connection between pressure
plate and cover for cracks, rivet connections and for secure fit.
- Replace clutches with damaged springs or with loose rivet connections
(arrows).
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30-42

Adjuster ring in SAC clutch pressure
plate, resetting


"SAC" stands for Self-Adjusting-Clutch
When fitting a new clutch plate together with a
used SAC pressure plate, the adjuster ring in
the pressure plate has to be reset by turning it
back as far as it will go. If this is not done, the
SAC pressure plate will operate with reduced
clamping force, which will cause clutch slip and
excessive wear (especially of the clutch plate).
This adjustment is only required when fitting a
new clutch plate together with a used SAC
pressure plate, as above.
If the clutch plate is not being replaced, it is not
necessary to reset the adjuster ring.
New SAC pressure plates are pre-set
accordingly, and do not have to be reset.
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-
Insert 3 securing bolts -A- into mounting holes on pressure plate, 120
from each other (1/3 turn), as shown in illustration. - Thread 3 nuts -B- (M8) onto bolts -A- and tighten nuts slightly.

- Place SAC pressure plate onto press so that only the 3 bolt heads
(arrows) make contact.
- Position special tool 3062 in center of pressure plate.
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Do not use force when performing the following
steps, otherwise the forks on the adjuster ring
can break off.
- Apply two screwdrivers to forks on adjuster ring.
Use press to compress pressure plate until it is
just possible to move adjuster ring.
- Using two screwdrivers, turn back adjuster ring
evenly in direction of arrows until it reaches stop.
- Hold adjuster ring against stop and reduce
pressure exerted by press so that adjuster ring is
held in this position.
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30-45


Removing and installing clutch with SAC pressure plate
Note:
The adjuster ring in the SAC pressure plate has to be reset ( Page 30
-42
) before assembly when replacing the clutch plate on its own.
Clutch lining and contact surface of pressure plate must make full
contact with flywheel before securing bolts are inserted. To avoid damaging centering holes in pressure plate and centering
pins on flywheel, tighten securing bolts evenly and in several stages in
diagonal sequence.
- Position of clutch plate: spring pack (coil springs) or marking
"Getriebeseite" towards pressure plate and transmission.
- Loosen and tighten bolts gradually in diagonal sequence and in several
stages to 22 Nm.
- Reverse position of counter-hold tool 10-201 when removing.
- Use mandrel 3176 to center clutch plate.
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