Audi A4

since 1994 of release

Repair and car operation

A4 Audi
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ exhaust System
+ cooling System
+ Fuel tank and fuel pump
+ Air filter and absorption channels
+ injection System
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ ignition System
+ Lighting
+ Alarm equipment
- Tools and devices
   Check of control tools and bulbs
   The combined device
   Indicator of amount of fuel
   The 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 liquid
   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
   Ignition lock
   Check of switches
   Alarm buzzer of lighting
   Warmed back glass
   Check of screen wipers and stekloomyvatel
   Engine of screen wipers
   The help at malfunctions
   The liquid gulf for washing of glasses
   System of washing of headlights
   Mirror adjustment with the electric drive
   Central lock
   Window regulators with the electric drive
   Sliding/demountable roof with the electric drive
   Radio receiver
   The aerial on back glass
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics

Indicator of amount of fuel

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

The deviation of an arrow of the indicator of amount of fuel changes by means of contact to 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 signal preparation for the fuel level sensor is provided with the central microprocessor of the combined device. Information on fuel level sensor dismantle you will find the Fuel tank and the fuel pump in 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 (V.A.G 1551) amendments are not established. There are no indications: arriving tension out of a 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?


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

Check and adjustment of the indicator of fuel


    Bare sockets of wires of the fuel level sensor. Disconnect the socket and measure by an ohmmeter resistance on the fuel level sensor socket: The tank is full: 40 Ohm. The tank is full half: 115 Ohm. Tank reserve: 250 Ohm. If the received results of measurement completely differ from set: the fuel level sensor is faulty. 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. Results of measurements are close or the indicator is inexact: the fuel level sensor float is incorrectly adjusted. 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: Dismantle the fuel level sensor. If the indicator of amount of fuel overestimates data: slightly turn in up the float lever. If the indicator of amount of fuel underestimates data: slightly turn in down the float lever.