Audi A4

since 1994 release

Manual of the car

Audi A4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
+ System of injection
- Coupling
   Coupling functioning
   Coupling actuating
   Coupling check
   Check of hydraulics of coupling
   The help at malfunctions
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics


The help at malfunctions

Its reasons
Your help
A. Coupling slips 1. Overlays of coupling are worn-out
2. Too insignificant clamping pressure of coupling
3. The slip was made oily
4. Coupling is overheated
Replace the conducted disk
Replace press a clutch plate
Replace the conducted disk and defective laying of the transmission or crankshaft
Replace defective parts
B. Coupling is not turned off 1. Air in hydraulic system of coupling
2. In the conducted disk a dent
3. The conducted disk is deformed or the slip broke
4. The conducted disk gets jammed on a transmission shaft
5. The slip after long standing rusted to a flywheel

6. Tangential sheet springs of a press disk are broken

Replace a defective part, remove air from system
You will correct the conducted disk or replace
Replace the conducted disk

Carefully clean teeth a wire brush. Then grease with Moly paste or spray.
Put the 1st transfer and turn a starter to start the engine. All the time you hold pressed a coupling pedal. Sharply press the accelerator pedal and release it to tear off coupling. Otherwise dismantle.
Replace press a disk

C. Coupling is not switched off and at the same time slips Defect in a press clutch plate Replace press a clutch plate
D. Coupling twitches 1. Defect in the engine or in a transmission suspension bracket
2. Roughnesses in an adjacent surface of a flywheel or a press disk
3. Improper slips
Replace bearings of the engine or the transmission
Replace a defective part

Replace the conducted disk

E. Noise in coupling

1. An imbalance of the press or conducted clutch plate
2. The defective torsion damping spring
3. Defective release bearing
4. Rivet connections in coupling are weakened
5. The defective needle bearing behind in the crankshaft
Replace press or the conducted clutch plate
Replace the conducted disk

Replace the release bearing
Replace press a clutch plate

Replace the needle bearing