Clutch, LUK Overview, Single-Disk Clutch

Fig 1: Clutch, Luk Assembly Overview

Courtesy of AUDI OF AMERICA, LLC

1. Clutch Module
   • Removing and installing, refer to CLUTCH MODULE 
2. Shaft Seal
   • For the dual mass flywheel
   • Removing, refer to Figure
   • Installing, refer to Figure
3. Needle Bearing
   • For the dual mass flywheel
   • Different versions, refer to Fig 2
   • Checking and replacing if necessary, refer to Fig 2
   • Removing, refer to Figure
   • Installing, refer to Figure
     NOTE:

     Always replace the needle bearing if the input shaft is damaged DUAL MASS FLYWHEEL NEEDLE BEARING .

     Depending on the version of the needle bearing installed that have rollers or needle bearings missing every 4th roller. This does not mean that the needle bearing is faulty.

4. Dual Mass Flywheel
   • With transfer plate
   • Make sure it fits securely on the centering pins
   • Keep the clutch lining contact surface free of grooves, oil and grease.
   • Removing and installing, refer to CLUTCH PRESSURE PLATE AND CLUTCH PLATE, LUK, SINGLE-DISC CLUTCH 
5. Clutch Plate
   • Removing and installing, refer to CLUTCH PRESSURE PLATE AND CLUTCH PLATE, LUK, SINGLE-DISC CLUTCH 
   • Allocation.
   • Installed position: The label, ""Getriebeseite" (transmission side)," faces the pressure plate
   • The spring pack (coil springs), if equipped, to the pressure plate
6. SAC Pressure Plate
   • Allocation.
   • Removing and installing, refer to CLUTCH PRESSURE PLATE AND CLUTCH PLATE, LUK, SINGLE-DISC CLUTCH 
   • Adjusting ring, resetting, refer to CLUTCH PRESSURE PLATE ADJUSTING RING, LUK, RESETTING, SINGLE-DISC CLUTCH 
   • Check the ends of the diaphragm spring, refer to Fig 4
   • Pressure plate, checking for distortion, refer to Fig 3
   • Check the pull-spring and rivet connections, refer to Fig 5
   • Keep the clutch lining contact surface free of grooves, oil and grease.
7. Bolt
   • Always replace
   • 22 Nm plus an additional 90° turn
   • Mount the pressure plate to the dual mass flywheel
   • Loosen or tighten according to assembly instructions, refer to CLUTCH PRESSURE PLATE AND CLUTCH PLATE, LUK, SINGLE-DISC CLUTCH 

Fig 2: Checking Needle Bearing Inside Dual Mass Flywheel

Courtesy of AUDI OF AMERICA, LLC

Depending on the version, there are different needle bearings installed in the dual mass flywheel.

• Needle bearings, that have every 4th roller missing -arrows- does not mean the needle bearing is faulty.
• Needle bearing that have rollers
• New needle bearings are equipped with rollers.

Fig 3: Checking SAC Pressure Plate For Warpage, Cracks And Burns

Courtesy of AUDI OF AMERICA, LLC

A - Ruler

B - Feeler gauge

• Pressure plate deformation up to 0.8 mm is permitted.

Fig 4: Checking Ends Of Diaphragm Spring

Courtesy of AUDI OF AMERICA, LLC

• Wear up to maximum 0.3 mm is permitted.

Fig 5: Checking Pull-Springs And Rivet Connection

Courtesy of AUDI OF AMERICA, LLC

I - Pull-springs OK

• Slight offset in the outer area -arrows A-.

II - Pull-springs damaged

• The pressure plate must be replaced if the pull-spring is bent or broken off -arrow B-.

-- Make sure the rivet connections -arrows B- fit correctly on all pull-springs -A-.

Fig 6: Checking Connections Of Springs And Rivet Connections

Courtesy of AUDI OF AMERICA, LLC

• Replace any pressure plates that have loose rivet connections -arrow B-.