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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2-6-11-proverka-ostatochnogo-davleniya.html

2.6.11. Check of residual pressure

Check tightness and residual pressure, observing process of reduction of pressure on the device of measurement of pressure.
After 10 min. excessive pressure not less than 3,75 bars has to remain.
If residual pressure falls lower than 3,75 bars of excessive pressure, check the threaded connection between the device of measurement of pressure and the giving fuel-supply line for tightness.
Check the device of measurement of pressure upon tightness.
Check fuel-supply lines and their connections for tightness.
Replace the fuel filter with the built-in regulator of pressure of fuel. In conclusion repeat check.
If the fuel filter is serviceable, replace the fuel pump.
Assembly is carried out in the return sequence.
Switch off ignition.

NOTE
Before removal of the device of measurement of pressure lower fuel pressure, having opened the locking crane. For this purpose lower an auxiliary hose in a reception vessel.

Again fix the giving fuel-supply line (you watch purity).

Inhaling moment
Fuel-supply line on the fuel distributor: 22H · m.

2.6.10. Check of pressure of fuel and residual pressure in front of the pump of high pressure
2.6.12. Removal and installation of the pump of high pressure