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
 







2-6-13-zamena-bloka-upravleniya-dvigatelya.html

2.6.13. Replacement of the block of management of the engine

THE NOTE
At рассоединении sockets of the block of management of the engine from memory the programmed values leave, contents of memory of malfunctions remain.

Removal
Connect a diagnostic complex and set in the field of a choice automobile system «01-Motor-steuergeraet/the Block of management of the engine». Ignition should be thus included.

Fig. 2.245. The identification data and the coding of blocks of management


On the display of a diagnostic complex the identification data and the coding of blocks of management (fig. 2.245) will be displayed.
At first it is necessary to familiarise attentively with the identification data of blocks of management and to unpack them.
Switch off ignition.
Extend a rubber lining of a cover of a water taking away box in a direction specified by an arrow.

Fig. 2.246. A casing of a water taking away box


Remove a casing of a water taking away box 1 forward (fig. 2.246).
Hook a screw-driver and remove both protective caps 3.
Turn off шестигранные nuts 4 on some turns.

Fig. 2.247. Removal of levers of a screen wiper


Slightly having inclined, release levers 2 screen wipers from a screen wiper axis (fig. 2.247).
Completely unscrew шестигранные nuts and remove screen wiper levers.
Pull together safety clip-on earrings 1 and remove дефлектор 5 (fig. 2.247).

Fig. 2.74. A cover of the switching block


Uncover electroboxes on a water taking away box, unscrew screws (fig. 2.74).

Fig. 2.75. Fastening of levers


Cautiously raise by means of a screw-driver a fixing collar (fig. 2.75).

Fig. 2.248. Components of the block of management


To complicate access to sockets on the block of management of the engine, this block 1 is fastened by means of a clamp 2 and срезных screws 3 and 4 to the metal case 5 (fig. 2.248).

ATTENTION
In order to avoid damage (combustion) штекерных connections and connections of wires, isolation and management blocks it is necessary strictly observe the resulted sequence of works.

The carving both срезных screws 4 (which are fastened not to the block of management of the engine) is covered by a clamp. Therefore for twisting of both screws it is necessary to warm up their carving the industrial hair dryer (fig. 2.248).
The carving both срезных screws 3 (which are fastened to the block of management of the engine) is not covered by a clamp. A carving in the case of the block of management it is not authorised and, besides, it is not required to warm up (inadmissible heating of the block of management of the engine).

Fig. 2.249. Adjustment of the industrial hair dryer


Adjust the industrial hair dryer how it is shown in drawing 2.249.
It means that the potentiometer of a regulator of temperature 2 should be established on the maximum heating, and the two-level switch of intensity обдува 3 – in position 3.

THE NOTE
Then heat up срезные screws the industrial hair dryer. Thanks to it braking action of a clamp on a carving срезных screws stops, and lock screws can be unscrewed, putting less efforts.

Cover all painted surfaces to prevent damages from the industrial hair dryer or tightening grips.

ATTENTION
Because of heating срезных screws parts of a protective casing strongly heat up. Do not burn. It is necessary also watch that only lock screws, instead of nearby components whenever possible heated up. If necessary it is necessary to cover them.

Direct a nozzle of the industrial hair dryer on срезной the clamp screw.
Include the industrial hair dryer and heat the screw approximately 20–25 with.

Fig. 2.250. Screw twisting


Then grasp tightening pincers a screw head and unscrew it (fig. 2.250).
Actions at untwisting of the second screw the similar.
Both срезных the screw which are fastened to the block of management of the engine, it is not necessary to warm up. They should be unscrewed without heating.
After that it is possible to separate the block of management of the engine and a protective casing.

Fig. 2.251. Connecting sockets of the block of management of the engine


Liberate штекерные latches and remove connecting sockets 1 and 2 from the block of management of the engine (fig. 2.251).
Take the old block of management of the engine and insert the new.

Installation
Installation is carried out in return sequence. Necessarily establish a protective casing of the block of management of the engine. Use new срезные screws.
After installation of the new block of management of the engine it is necessary to make following works.
To activate the block of management of the engine in «Conducted search of malfunctions» during check / function «Motorsteuergeraet ersetzen (Replace the block of management of the engine)».


2.6.12. Removal and installation of the pump of a high pressure

2.6.14. Removal and ljambda-probe installation in front of the catalyst