Audi 80/Avant (B4)

since 1991-1995 release

Repair and operation of the car

Audi 80/Avant
+ Technical specification
+ Engines
+ System of production of the fulfilled gases
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and airintaking channels
+ System of injection
- Coupling
   Drive of management of coupling
   Coupling service life
   Coupling check
   Check of the hydraulic drive of coupling
   Coupling removal
   List of malfunctions
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Anti-blocking system of brakes
+ Wheels and tires
+ Body electrical system
+ System of ignition
+ Lighting
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ body Elements
+ Search of malfunctions
+ Specifications

Coupling removal

Over a pedal of coupling (3) the rubber cuff (1) main cylinder of the hydraulic drive of coupling and both fixing bolts is visible (2).

From special tools for performance of this work it will be required to you aligning dorn for the conducted disk. This dorn represents not that other as the end of primary shaft of a transmission.

For want of something better it is possible to align a disk of coupling and another suitable even (a steel pin, a wooden finger, etc.).


  1. To remove a transmission.
  2. To weaken bolts with an internal polygon of 8 mm on a press disk. If the flywheel rotates together with a press disk, ask the assistant to insert a screw-driver into gear gearing on an outer edge and to prevent rotation of a disk, having rested a screw-driver against a nazhivlenny bolt of fastening of a transmission.
  3. To remove press a disk and the conducted disk.
  4. To estimate wear of a press disk: whether it is possible to find on the end of a dish-shaped spring wear tracks more deeply than 0,3 mm? Whether the ends of petals of a dish-shaped spring are unbent aside? Whether all rivets strong keep? Whether as it should be flat springs under a prileganiye ring? Whether is not present on the ring of cracks and grooves? Besides, towards the middle the ring should not be bent more, than on 0,3 mm (apply a metal ruler). Otherwise replace press a disk.
  5. To estimate wear of the conducted disk: whether it is enough still material of a covering or brass rivets act already threateningly far (mostly, at first from a press disk)? Audi does not specify any exact degree of wear so it is necessary to rely on own intuition.
  6. We recommend to replace coupling disks at the slightest suspicion. It for certain will relieve you of repeated removal of coupling in the near future. Further it is necessary to check spiral springs of a disk. If one of them is broken: to establish a new disk.
  7. To check the small needle bearing behind in the middle of a cranked shaft and vyzhimny the bearing for jamming.
  8. To grease internal gear gearing of the conducted disk with MoS2 paste or jellied V.A.G greasing. D 000 100.
  9. To apply with a thin layer heat-resistant jellied greasing on shponochny grooves and the small needle bearing.
  10. To establish a coupling disk (a spring towards a press disk) and press a disk, thus by means of a dorn to align a coupling disk on a flywheel (the central openings of both parts have to coincide in order that they at the subsequent installation of a transmission could be easily put on a transmission shaft).
  11. In some calling to tighten press a disk cross until 25 N • m.
  12. To establish a transmission.

 Help: if you establish a new disk of coupling, surely remove with solvent wax protection against a rust on a friction surface. Otherwise you are expected by premature wear of coupling.

Removal of the vyzhimny bearing


  1. To remove a transmission.
  2. To remove vyzhimny the bearing.
  3. If you again install the old bearing, consider that it can only be rubbed off and it is impossible to wash.
  4. The directing plug on which the bearing moves to one and to other party, is made of a platmassa and it cannot be greased.
  5. For installation it is necessary to push simply the bearing in the plug.