Audi A4 with 2001- 2005 of release.
1. Operation and car maintenance service
2. The engine
2.1. The general data
2.2. Predvaritlnye checks
2.3. A Mehanichsky part (petrol engines 2,0л)
2.4. Greasing system
2.5. Cooling system
2.6. Injection system
2.6.1. Removal and installation turbocharger
2.6.2. Removal and installation of the vacuum block turbocharger
2.6.3. Adjustment of the vacuum block turbocharger (турбонагнетатель it is removed)
2.6.4. The general instructions on self-diagnostics of system of injection
2.6.5. Decrease in a 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 from a fuel stage
2.6.8. Removal and installation of a fuel stage (Rail)
2.6.9. Removal and installation of atomizers
2.6.10. Check of pressure of fuel and residual pressure in front of the high pressure pump
2.6.11. Check of residual pressure
2.6.12. Removal and installation of the pump of a high pressure
2.6.13. Replacement of the block of management of the engine
2.6.14. Removal and ljambda-probe installation in front of the catalyst
2.6.15. Removal and installation a ljambda-probe after the catalyst
2.6.16. A fuel tank (front-wheel cars – all models with engines MPI and 2,0 l FSI)
2.6.17. Откачка fuel from a tank
2.6.18. Removal and installation of a fuel tank from hinged details
2.6.19. Electric check of the fuel pump
2.6.20. Check of quantity of fuel submitted the fuel pump (cars with 4 cylinder engine with a free admission)
2.6.21. Check of quantity of fuel submitted the fuel pump (атомобили with the engine of 1,8 l Turbo)
2.6.22. Check of quantity of fuel submitted the fuel pump (атомобили with 4 cylinder engine FSI)
2.6.23. Check of quantity of fuel submitted the fuel pump (cars with 6 cylinder engine MPI)
2.6.24. Removal and installation of knot of giving of fuel
2.6.25. A fuel tank (all-wheel drive cars till 10.04)
2.6.26. Откачка fuel from a tank
2.6.27. Removal and installation of knot of a pedal of an accelerator from gauges of position of a pedal
2.7. System of release of the fulfilled gases
2.8. A mechanical part (petrol engines 3,0; 3,2)
2.9. A mechanical part (petrol engines 4,2)
2.10. A mechanical part (diesel engines 2,0)
2.11. Tables
3. Transmission
4. A running gear
5. The steering mechanism
6. Brake system
7. An onboard electric equipment
8. A body
9. Electric equipment schemes
 







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2.6.3. Adjustment of the vacuum block turbocharger (турбонагнетатель it is removed)

Adjustment

Fig. 2.222. A hose of the vacuum block


Remove a hose from the vacuum block on турбонагнетателе (fig. 2.222).

Fig. 2.220. A lock plate of the lever turbocharger


Remove a lock plate 1 through the lever turbocharger (fig. 2.220).

Fig. 2.221. A detachment of draught from turbocharger


Loosen the a counternut 2 (fig. 2.221).

Fig. 2.223. An adjusting nut of the bypass valve


Preliminary adjust bypass the valve 1 corrugated nut so that the valve was hardly scrolled by hand (fig. 2.223).
By hand twirl a counternut.

Fig. 2.224. Installation of the manual vacuum pump


Connect the manual vacuum pump, a tester turbocharger to a socket II and редукционный the valve, as is shown in drawing 2.224.
Close редукционный the valve the lever 1.
Establish a mobile ring of 1 manual vacuum pump in position In for "pressure" (fig. 2.225).

Fig. 2.225. Installation of a mobile ring of the vacuum pump


To include a tester turbocharger and establish the mobile switch in position II.

Fig. 2.226. Fastening of the indicator of hour type on турбонагнетателе


Fix a universal support of the indicator of hour type on турбонагнетателе (fig. 2.226).

THE NOTE
Data in mm concerns to считанному to an indicator (contains 1 mm of preliminary displacement).

Fix the indicator of hour type with the extension piece of 30 mm and flat probeом on a universal support of the indicator of hour type.
Establish at pressure 0 bar the indicator of hour type on a preliminary tightness in 1 mm.
Turn the index of the indicator of hour type in position 0.
Check up ease of a course of the indicator.
Actuate the manual vacuum pump while on a tester turbocharger there will be no value of pressure 350 5 мбар.
The indicator of hour type should show from 4,1 to 4,3 mm, otherwise follows rotate a corrugated nut until the given value will be reached.
By hand twirl a counternut.
Repeat measurement.
Dump pressure through редукционный the valve to 0 мбар.
Establish the indicator of hour type in position 0.

THE NOTE
The subsequent measurements should be executed in the specified sequence. Pressure at measurements cannot be lowered to 0.

Actuate the manual vacuum pump while on a tester turbocharger there will be no value of pressure 350 5 мбар.
Consider an indicator on the indicator and write down it.
Actuate the manual vacuum pump while on a tester turbocharger there will be no value of pressure 650–700 мбар.
Dump pressure through редукционный the valve to 350 5 мбар.
Consider an indicator on the indicator and write down it.
Combine indicators 1 and 2 and to divide the sum on 2.
The result (average value) should make 5 0,25 mm.
If as a result average value is not equal 5 0,25 mm, follows modify adjustment, tighten a counternut by hand and repeat measurement.
If average value is equal 5 0,25 mm, tighten a counternut and fix its fixing varnish.
Fix a lock plate 1 over the lever of the vacuum block (fig. 2.220).


2.6.2. Removal and installation of the vacuum block turbocharger

2.6.4. The general instructions on self-diagnostics of system of injection