Removal and installation of the pump of high pressure. Audi A4 (from 2001 to 2005 release)
Service of Audi A4 from 2001 to 2005 release.
1. Operation and maintenance of the car
2. Engine
2.1. General information
2.2. Predvaritlny checks
2.3. Mekhanichsky part (petrol engines 2,0l)
2.4. Lubrication system
2.5. Cooling system
2.6. System of injection
2.6.1. Removal and installation of a turbocharger
2.6.2. Removal and installation of the vacuum block of a turbocharger
2.6.3. Adjustment of the vacuum block of a turbocharger (the turbocharger is removed)
2.6.4. The general instructions on self-diagnostics of system of injection
2.6.5. Decrease in high pressure of fuel
2.6.6. Removal and installation of a flowmeter of air
2.6.7. Removal and installation of an inlet collector with a fuel stage
2.6.8. Removal and installation of a fuel stage (Rail)
2.6.9. Removal and installation of nozzles
2.6.10. Check of pressure of fuel and residual pressure in front of the pump of high pressure
2.6.11. Check of residual pressure
2.6.12. Removal and installation of the pump of high pressure
2.6.13. Replacement of the control unit of the engine
2.6.14. Removal and installation a lambda probe in front of the catalyst
2.6.15. Removal and installation a lambda probe after the catalyst
2.6.16. The fuel tank (front-wheel cars – all models with MPI engines and 2,0 l of FSI)
2.6.17. Pumping of fuel from a tank
2.6.18. Removal and installation of the fuel tank with hinged details
2.6.19. Electric check of the fuel pump
2.6.20. Check of amount of the fuel given by the fuel pump (cars from the 4th the cylinder engine with a free admission)
2.6.21. Check of amount of the fuel given by the fuel pump (atomobil with the engine of 1,8 l Turbo)
2.6.22. Check of amount of the fuel given by the fuel pump (atomobil from the 4th the cylinder FSI engine)
2.6.23. Check of amount of the fuel given by the fuel pump (cars from 6 the cylinder MPI engine)
2.6.24. Removal and installation of knot of supply of fuel
2.6.25. Fuel tank (all-wheel drive cars till 10:04)
2.6.26. Pumping of fuel from a tank
2.6.27. Removal and installation of knot of a pedal of an accelerator with sensors of provision of a pedal
2.7. System of production of the fulfilled gases
2.8. Mechanical part (petrol engines 3,0; 3,2 l)
2.9. Mechanical part (petrol engines of 4,2 l)
2.10. Mechanical part (diesel engines of 2,0 l)
2.11. Tables
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
9. Schemes of electric equipment
 







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2.6.12. Removal and installation of the pump of high pressure

NOTE
Installation and removal of the fuel pump of high pressure it is carried out only on the cold engine.
At installation of the fuel pump of high pressure it is necessary to pay attention to that dirt did not get to fuel system.
Collect the following fuel by a rag.
Always you make replacement of a sealing ring.
Always fix fuel-supply lines of high pressure so that in them there was no internal mechanical tension.

Removal
Disconnect electric shtekerny connections from the fuel pressure sensor, low pressure and from the adjusting valve of pressure of fuel 1 and 2.
Turn off both fuel-supply lines.
Unscrew 3 screws.

Fig. 2.244. Fastening of the fuel pump


Carefully take the fuel pump of high pressure. The plug sometimes remains in a head of the block of cylinders (fig. 2.244).

Installation
Replace a sealing ring of the pump of high pressure.
Carefully insert the pump of high pressure together with the plug into an opening on a head of the block of cylinders.
Tighten bolts cross-wise with the moment of 10 N · m.
Before installation of fuel-supply lines it is necessary to check the moment of an inhaling of connecting branch pipes of the pump of high pressure.
Moment of an inhaling of connecting branch pipes of the return fuel highway: 40 N · m
The moment of an inhaling of connecting branch pipes of the giving fuel highway: 30 N · m

NOTE
Replace the screw on the return fuel highway.

Tighten by hand the screw on the return fuel highway. Level without distortions and a tension.
Tighten a hand a cap nut of the giving fuel-supply line.
Moment of an inhaling of the return fuel highway: 25 N · m.
The moment of an inhaling of the giving fuel highway: 30 N · m.
Connect electric shtekerny connections to the fuel pressure sensor, low pressure and to the valve of adjustment of pressure of fuel.

NOTE
Check fuel system for tightness.


2.6.11. Check of residual pressure

2.6.13. Replacement of the control unit of the engine