Audi 80 Quiz
Clutch

Clutch Troubleshooting

In this manual: Clutch
Technical Description — 39Engines — 41Exhaust System — 13Cooling System — 28Fuel tank and fuel pump — 12Air Filter and Intake Ducts — 13Mono-Motronic Injection System — 18Digifant Injection System — 19KE-III-Jetronic Injection System — 35MPI and MPFI Injection Systems — 32Clutch — 11Transmission and Driveline — 21Suspension and Steering — 33Brake System — 41Anti-lock brake system — 8Wheels and Tires — 13Body Electrical System — 35Ignition System — 24Lighting — 14Signaling Devices — 7Instruments and Auxiliary Equipment — 54Heating and Ventilation — 7Body Components — 18Troubleshooting — 6Specifications — 13
~1min read
Malfunction Possible Cause Remedy
A. Clutch slips 1. Clutch friction linings worn
2. Insufficient clutch pressure force
3. Clutch linings contaminated with oil
4. Clutch overheated		 Replace the clutch disc
Replace the pressure plate
Replace the clutch disc and the defective transmission or crankshaft oil seal
Replace the defective parts
B. Clutch does not disengage 1. Air in the hydraulic clutch system
2. Clutch disc runout
3. Deformed clutch disc or broken friction lining
4. Clutch disc seized on the transmission input shaft
5. Friction lining stuck to the flywheel after a very long period of standing
6. Broken tangential leaf springs in the pressure plate		 Replace the defective part, bleed the system
Straighten or replace the clutch disc
Replace the clutch disc
Thoroughly clean the fine-spline connection with a wire brush.

Finally, lubricate with Moly paste or spray
Engage first gear and operate the starter to start the engine; keep the clutch pedal pressed continuously. Briefly press and release the accelerator pedal to free the clutch. Otherwise, remove
Replace the pressure plate
C. Clutch does not disengage and at the same time 'grabs' Clutch pressure plate worn Replace the pressure plate
D. Clutch judders 1. Engine or transmission mount fault
2. Uneven surface of the flywheel or pressure plate contact face
3. Incorrect friction linings		 Replace the engine bearing or transmission mounts
Replace the defective part
Replace the clutch disc
E. Clutch noises 1. Imbalance of the clutch pressure plate or clutch disc
2. Defective torsion damper spring
3. Faulty release bearing
4. Loose riveted connections in the clutch
5. Faulty needle bearing at the rear end of the crankshaft		 Replace the clutch pressure plate or clutch disc
Replace the clutch disc
Replace the release bearing
Replace the clutch pressure plate
Replace the needle bearing

Test yourself

A quick Audi 80 quiz: every answer comes with an explanation and a link to the manual page.