Audi 80/Avant (B4)

Since 1991-1995 of release

Repair and car operation

Audi 80/Avant
+ The description
+ Engines
+ System of release of the fulfilled gases
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and воздухозаборные channels
+ Injection system
- Coupling
   Drive of management of coupling
   Coupling service life
   Coupling check
   Check of a hydraulic drive of coupling
   Coupling removal
   The list of malfunctions
+ Transmission and transmission
+ Suspension bracket and steering
+ Brake system
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
+ Ignition system
+ Illumination
+ 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 cylinders of a hydraulic drive of coupling and both fixing bolts (2) is visible.

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

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


    To remove a transmission. 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 at external edge and to prevent disk rotation, having rested a screw-driver in наживленный a bolt of fastening of a transmission. To remove press a disk and a conducted disk. To estimate deterioration of a press disk: whether it is possible to find out on the end тарельчатой springs wear tracks more deeply 0,3 mm? Whether the ends of petals тарельчатой springs aside are unbent? Whether all rivets strong keep? Whether as it should be flat springs under a ring прилегания? Whether Is not present on the ring of cracks and grooves? Besides, in a direction to the middle the ring should not be bent more than on 0,3 mm (put a metal ruler). Otherwise replace press a disk. To estimate deterioration of a conducted disk: whether it is enough still a material of a covering or brass rivets act already threateningly far (generally, at first from outside a press disk)? Audi does not specify any exact degree of deterioration so it is necessary to rely on own scent. 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. To check up the small needle bearing behind in the middle of a cranked shaft and выжимной the bearing on jamming. To grease internal gear gearing of a conducted disk by paste MoS2 or консистентной with greasing V.A.G. D 000 100. To put a thin layer heat-resistant консистентную greasing on шпоночные grooves and the small needle bearing. To establish a coupling disk (a spring towards a press disk) and press a disk, thus with the help дорна to align a coupling disk on a flywheel (the central apertures of both parts should coincide that they at the subsequent installation of a transmission could be easily put on a transmission shaft). In some calling to tighten press a disk перекрестно till the moment 25 Н•м. To establish a transmission.

 The help: if you establish a new disk of coupling necessarily remove solvent wax protection against a rust on a friction surface. Otherwise you are expected by premature deterioration of coupling.

Removal выжимного the bearing


    To remove a transmission. To remove выжимной the bearing. If you again establish the old bearing, consider that it can be rubbed off only and it is impossible to wash. The directing plug on which the bearing moves to one and in other party, is made from платмассы and it cannot be greased. For installation it is necessary to push simply the bearing in the plug.