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
+ 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
   Front bumpers
   Forward part of the car
   External rear-view mirrors
   Forward and back flew down
   Trunk lid at a sedan
   Back door of the versatile person
   Rear bumper
   Movable hatch
   Clearing of openings for a water drain
   Control of anticorrosive protection of the bottom of a body
+ Search of malfunctions
+ Specifications

Clearing of openings for a water drain

No welded seam exists so tight that there water could not get. For this reason in all hollow profiles in the car openings for a water drain are built in. If they got littered because of dirt or too diligent drawing anticorrosive protection of the bottom of the car, the getting water cannot flow down any more and, as a result, corrosion of the car begins from within. Especially dangerous places are body longerons.


  1. Regularly to clean openings by means of brushes for cleaning of tubes ("brush").
  2. If the car is equipped with the movable hatch, it is necessary to control in addition opening drains in a roof, see above.
  3. For cleaning – in front from above, behind from below – the old shaft of the drive of a speedometer approaches.