Audi A4

since 1994 release

Repair and operation of the car


A4 Audi
+ 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
+ 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
   Check of control tools and bulbs
   The combined device
   Speedometer
   Tachometer
   Hours
   Indicator of amount of fuel
   Indicator of temperature of cooling liquid
   Auxiliary devices
   Control bulbs above in the combined device
   Control bulb of cooling liquid
   Control bulb of level of brake fluid
   Control bulb of pressure of oil
   Control bulb of indexes of turns
   Control bulbs in devices of a round form (and nearby)
   Control bulb of indexes of turn on the trailer
   Control bulb of ASR
   Control bulb of the lock of ignition
   Control bulb of headlights of a driving beam
   Control bulb of a safety cushion
   Control bulb of ABS
   Control bulb of the parking brake
   Control bulb of a battery charging
   System of autocontrol of the car
   Switches
   Ignition lock
   Check of switches
   Alarm buzzer of lighting
   Lighter
   The warmed back glass
   Check of screen wipers and windscreen washers
   Engine of screen wipers
   The help at malfunctions
   The gulf of liquid for washing of glasses
   System of washing of headlights
   Adjustment of a mirror with the electric drive
   Central lock
   Window regulators with the electric drive
   Sliding/removable roof with the electric drive
   Radio receiver
   The antenna on back glass
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics



Indicator of amount of fuel

On a control panel the level of fuel is shown in the electric way.

The deviation of an arrow of the indicator of amount of fuel changes by means of contact with weight. It is provided with the fuel level sensor which depending on filling of a fuel tank has higher or low resistance. Giving of tension and preparation of a signal for the fuel level sensor is provided with the central microprocessor of the combined device. Information on dismantle of the fuel level sensor you will find the Fuel tank and the fuel pump in the head.

Violations in operation of the indicator of amount of fuel

  • The raised or lowered indications: the float of the fuel level sensor is incorrectly established (see the following section), or are not established the amendment (V.A.G 1551).
  • There are no indications: the arriving tension out of the range of the combined device, either the level sensor, or the indicator are faulty.

The indicator of amount of fuel or the fuel level sensor is faulty?

 PERFORMANCE ORDER

  1. Bare sockets of wires of the fuel level sensor (the head the Fuel tank and the fuel pump), disconnect the mnogoshtyrkovy socket.
  2. Connect an auxiliary wire to the socket of a violet/black wire and apply directly to weight.
  3. For a short time include ignition.
  4. If the arrow of the indicator deviates completely, the wire as it should be bringing and the indicator. Then a cause of defect there is a fuel level sensor.
  5. If the arrow remains in situation "is empty", malfunction in the bringing wire, in a wire of the combined device or the indicator of amount of fuel. Fuel level sensor probably as it should be.

Check and adjustment of the indicator of fuel

 PERFORMANCE ORDER

  1. Bare sockets of wires of the fuel level sensor.
  2. Disconnect the socket and measure by an ohmmeter resistance on the socket of the fuel level sensor:
  3. Buck is stout: 40 Ohms.
  4. Buck is stout half: 115 Ohms.
  5. Tank reserve: 250 Ohms.
  6. If the received results of measurement completely differ from set: the fuel level sensor is faulty.
  7. If results of measurement as it should be, but indications of the indicator of amount of fuel have a big error or not indications: there is no conductivity or the device is faulty.
  8. Results of measurements are close or the indicator is inexact: the float of the fuel level sensor is incorrectly adjusted.
  9. Installation of a float of the fuel level sensor: it is work for a workshop which can carry out adjustment by means of the device for reading of errors of V.A.G 1551. In certain borders it is possible to make the following:
  10. Dismantle the fuel level sensor.
  11. If the indicator of amount of fuel overestimates data: slightly turn in the float lever up.
  12. If the indicator of amount of fuel underestimates data: slightly turn in the float lever down.