Clutch, Servicing

Clutch, servicing
Special tools, testers and auxiliary items required





^ Flywheel retainer 10-201





^ Thrust pad 3062





^ Centering mandrel 3176
^ Grease G 000 100

Notes:
^ Observe general repair notes.
^ For vehicles with V6 2. 7 Liter Bi-Turbo and 4.2 Liter V8 engines, a SAC clutch plate (self adjusting clutch plate) is installed. The adjustment ring must be reset only when clutch disc is replaced.
^ 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 G000100 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 anticorrosion 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 burnt out, thoroughly clean the bellhousing, flywheel and parts of the engine facing the transmission to reduce the smell of burnt linings.

Clutch (SAC pressure plate)
- Before working on the clutch, the transmission must be removed.





1. Flywheel
^ Dual mass flywheel only for 2.7 Liter V6 bi-turbo engine
^ Ensure centering pins are tightly seated
^ Contact surface for clutch lining must be free of grooves, oil and grease
^ Removing and installing
2. Bolt
^ Vehicles without dual-mass flywheel: tighten to 60 Nm + additional 90°.
^ Vehicles with dualmass 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
^ Do not grease
^ Clutch plate diameter
4. SAC pressure plate
^ Removing and installing
^ Resetting adjuster ring
^ Checking ends of diaphragm spring see 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





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).

Note: In case of repair, always allocate clutch pressure plate and clutch disc to engine code.