Audi A4

Since 1994 of release

Repair and car operation

Audi А4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ Exhaust system
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and channels всасывания
- Injection system
   + System of injection Motronic
   - System of injection MPI and MPFI
      Additional functions
      Knots of system of injection
      Adjustment by means of a ljambda-probe
      Infringements in work and self-diagnostics
      The self-help
      The visual control
      Check of knots
      Dismantle of separate details
      Cable throttle заслонки
      Inlet collector
      Idling adjustment
      Check of the fulfilled gases
      The help at malfunctions
+ Coupling
+ Transmission and the main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tyres
+ The electrotechnical equipment
+ Ignition system
+ Illumination
+ The alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics

The visual control


  1. Check up air hoses on tightness. It is necessary to check up all hoses – from thick воздухозаборного a hose to a small vacuum hose from a pressure regulator.
  2. As a lining of valves of injection, and also a lining on flanges of channels всасывания?
  3. Through not tight sites in system всасывания additional air arrives, i.e. Air which the system cannot consider in calculations and consequently process of preparation of a toplivno-air mix is aloud broken. The working mix is uncontrolledly impoverished. It leads to infringements in engine work – basically idling.
  4. Warm up the engine and then leave it to idle, open a cowl, disconnect a ljambda-probe socket.
  5. Purposefully water with a spray of starting fuel (for example, Startpilot) linings of flanges of channels всасывания and other suspicious knots.
  6. If at обрызгивании a certain site the number of turns, this site негерметичен changes.
  7. Whether not tight places are visible on gasoline pipe lines?
  8. Disconnect some times and again connect sockets of wires. Corrosion and nonprofessional jerks can lead to contact damage.
  9. Attentively examine sockets of separate knots of system of injection. They can be processed only a spray for contacts, подгибание can lead to infringements in work.