Audi A3

since 1997 of release

Repair and car operation



Audi A3
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
- Power supply system and production of the fulfilled gases
   - Power supply system
      Removal and installation of the fuel pump/sensor of a stock of fuel
      Removal and installation of the fuel filter
      Adjustment of a drive of gas
      Removal and installation of the case of the air filter
      Connection of remote control by the fuel pump for carrying out checks
      Check of the fuel pump
      Check of the relay of the fuel pump
   + System of injection of fuel
   + System of injection of the diesel engine
   + System of production of the fulfilled gases
+ engine Electric equipment
+ Manual box of gear shifting
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Elektroskhema







Check of the relay of the fuel pump

GENERAL INFORMATION

The relay of the fuel pump is in a relay payment, a place 4, on the party of the driver under the dashboard block. It is necessary for checking, if the pump does not work.

PERFORMANCE ORDER
1. Take out a safety lock No. 28 of the fuel pump.
2. Attach a diode control lamp by means of an auxiliary wire between weight and one of two contacts of a safety lock of the fuel pump.
3. Remove the top facing around feet of the driver, at the left, thus address to the subsection Removal and pocket installation from the driver.
4. Include a starter. Turning on of the relay of the fuel pump should be audible. The diode control lamp Besides, should light up.
5. If the relay does not turn on, check supply voltage and management.
6. If diode a control lamp does not light up, though the relay turns on, repeat check on other contact of a safety lock.
7. If the diode control lamp again does not burn, check a wire between contact 23 at the relay, a place 4, and a safety lock of the fuel pump. In the presence of break eliminate it.
8. If a relay food, management and relay wires as it should be, replace the relay of the fuel pump.
Food check
Take out the relay of the fuel pump from a relay payment (a relay No. 4 place).
Include ignition.
Consistently attach the voltmeter:

– between contact 19 (plus of the lock of ignition) and weight;
– between contact 17 (plus of the storage battery) and weight.

Demanded value: 12 In (tension of the battery).

Otherwise check wire break on an electric circuit and eliminate.
Switch off ignition.

MANAGEMENT CHECK

PERFORMANCE ORDER
1. Attach a diode control lamp with an auxiliary wire between contact 16 (mass of management from a monitor the engine) and contact 17 (plus) of a socle of the relay.
2. Include a starter. Thus the light-emitting diode should light up. Otherwise find wire break to a monitor injection and eliminate it or replace a monitor (work HUNDRED).

ATTENTION

Diode control lamps have small consumption of a current. If the starter is not included, they have a weak luminescence and completely do not die away.


3. Insert a safety lock of the fuel pump.
4. Establish a pocket around an arrangement of feet, thus address to the subsection Removal and pocket installation from the driver.