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
   For what ventilation of a fuel tank is necessary?
   The sensor of the indicator of level of fuel in a fuel tank
   Toplivoprovoda
   The fuel pump with the electric drive
   Dismantle of the petrol pump with the electric drive
   Replacement of the fuel filter
+ 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
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics





Dismantle of the petrol pump with the electric drive

The so-called module of supply of fuel consists from:

1–fixing nuts for pump connection to power supply;
2–electricity cables from a deaf flange to the fuel pump;
3–a collar for wires/hose;
4–fuel hose;

5–deaf flange;
6–tightening collars;
7–the basic case with the fuel pump.


Quattro: the hose between the fuel pump (1) and a deaf flange (2) should be established how is shown in drawing.


Forward drive: in drawing it is shown, how the hose between the fuel pump (1) and a deaf flange (2) is mounted. At installation turn a deaf flange on an arrow how it is represented on the right.

At the left: in this cut fuel tank it is shown, how the fuel pump is dismantled. Though the special tool (1) which turns a little to the left an internal detail (2) cases of an inlet collector is for this purpose necessary. The tool grasps the pads (arrow) of dredging of an internal detail.

On the right: with an internal detail (2) cases of an inlet collector in an external detail its (3) cases it is necessary for installation of the fuel pump (1), that there was correct an assembly situation: risk on an internal detail of the case of an inlet collector should be opposite to a mark on an external detail (arrow).

It is work already for Audi workshop as the fuel pump is dismantled together by an internal detail of the case of an inlet collector, and it can be unscrewed from an external detail of an inlet collector only by means of a special key 3307. The one who can borrow a key, should operate as follows:

 PERFORMANCE ORDER

  1. Be convinced that the fuel tank is filled at most on 2/3, otherwise gasoline will flow out!
  2. Cast away a floor covering of a luggage carrier.
  3. Unscrew a black cover.
  4. Disconnect the mnogoshtyrkovy socket.
  5. Disconnect the retsirkulyatsionny pipeline.
  6. Disconnect submitting pipeline.
  7. Unscrew a synthetic cap nut. More often they sit very strongly. Therefore establish on a nut edge the most stupid screw-driver, and a lung in hammer blows on the handle of a screw-driver weaken nut fastening. If it is necessary, knock on different edges.
  8. Now it is possible to pull a little up a deaf flange of a fuel tank.
  9. Weaken on inside of a deaf flange tightening a collar of the retsirkulyatsionny pipeline and pull together a hose down.
  10. Take out the socket of a fuel tank.
  11. Establish a special key 3307 on an internal detail of the case of an inlet collector.
  12. Turn a little to the left against the stop an internal detail of the case of an inlet collector.
  13. Take out the pump with an internal detail and together with a deaf flange from a fuel tank.
  14. Mark/remember assembly position of the pump, hoses, wires and sheaves of wires as details at installation should be mounted precisely.
  15. After unscrewing of the delivery pipeline (assembly situation) the pump can be dismantled from an internal detail of the case of an inlet collector. It becomes on a miscellaneous depending on the pump version:
  16. Pump of 60 mm: turn to the left a sieve under an internal detail of the case of an inlet collector, take out the pump. At installation the nouse sideways on the pump should be pushed in a groove. Pay attention to laying.
  17. Pump of 40 mm: compress deblocking collar above on an internal detail of the case of an inlet collector, take out the pump. At installation the pump can be inserted only in one situation.
  18. Installation: a hose mount between the pump and a deaf flange how it is shown in drawings. The pump and a deaf flange should be in the correct situation relatively each other.
  19. If everything is collected correctly, the pump can be mounted again in an external detail of the case of an inlet collector in a fuel tank.
  20. It is necessary to pay attention: the mark in an external detail should stand opposite risks on an internal detail.
  21. Again screw up an internal detail a key 3307, establish other details.
  22. Assembly provision of a deaf flange: the arrow on a flange should be opposite to a mark in a fuel tank. Cars with a drive on forward and on all wheels have an own arrow.