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Removing and installing clutch module > < Components

A4 Mk3

Servicing clutch
Servicing clutch
  Note
t  Refer to general repair instructions → Chapter.
t  Servicing clutch mechanism and clutch hydraulics → 6-speed manual gearbox 0B1, front-wheel drive; Rep. gr.30
t  The gearbox has to be removed before working on the clutch → 6-speed manual gearbox 0B1, front-wheel drive; Rep. gr.34.
t  To avoid damaging clutch pressure plate when removing and installing, observe assembly instructions → Chapter „Removing and installing pressure plate and clutch plate (Sachs version)“ or → Chapter „Removing and installing pressure plate and clutch plate (LuK version)“.
t  On clutch pressure plate (LuK version) an adjuster ring has to be reset when only the clutch plate is renewed → Chapter.
t  Checking pressure plate for distortion → Fig. and → Fig.
t  Renew clutch plate and pressure plate if riveted fastening is damaged or loose.
t  Select the correct clutch plate and pressure plate according to engine code → Electronic parts catalogue.
t  Clutch pressure plates have an anti-corrosion coating and are greased. With the exception of the friction surface for the clutch plate, the pressure plate must not be cleaned. Otherwise the service life of the clutch will be considerably reduced.
t  The friction surface of the clutch pressure plate and the dual-mass flywheel must be cleaned (degreased) thoroughly.
t  If the clutch has burnt out, thoroughly clean the gearbox housing in area of clutch and parts of the engine facing the gearbox in order to prevent odours.
t  Blow out clutch module with compressed air only.
   
t  If there is visible damage on the surface of the input shaft in the vicinity of the needle bearing for the dual-mass flywheel -arrow-, both the input shaft and the needle bearing in the dual-mass flywheel must be renewed → Chapter.
t  Renewing input shaft → Chapter „Dismantling and assembling gearbox - assembly sequence“
  A30-10212
t  Check the input shaft for scoring around the bearing in the drive plate -arrow-. Renew the needle bearing in the drive plate if necessary → Rep. gr.13.
t  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 for clutch plate splines -G 000 100- to the splines. Then move clutch plate backwards and forwards on input shaft until hub moves freely on shaft. It is important to remove excess grease.
t  Remove grease from input shaft bearing journal as far as splines.
  A34-10780
t  Check for wear on plastic washer -A- in „Sachs“ version dual-mass flywheel → Fig..
t  Check version of needle bearing in dual-mass flywheel -arrow- and renew if necessary → Fig..
  A30-10211
t  Lack of grease at the bearings -arrows- on the release bearing assembly can cause creaking/grating noises when the clutch is operated.
t  Grease bearings -arrows- on release bearing assembly thoroughly with lubricating paste -G 000 150-.
  A30-10221
t  Do not put down clutch module with flange -arrow- for drive plate facing downwards.
t  This could bend the flange -arrow- for the drive plate, which would cause problems with clutch operation.
→ Chapter „Removing and installing clutch module“
→ Chapter „Exploded view - servicing Sachs version clutch“
→ Chapter „Removing and installing pressure plate and clutch plate (Sachs version)“
→ Chapter „Exploded view - servicing LuK version clutch“
→ Chapter „Removing and installing pressure plate and clutch plate (LuK version)“
→ Chapter „Resetting adjuster ring in pressure plate (LuK version only)“
→ Chapter „Renewing needle bearing for dual-mass flywheel (Sachs and LuK versions)“
  A30-10218

Removing and installing clutch module > < Components