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
2.7. System of release of the fulfilled gases
2.8. A mechanical part (petrol engines 3,0; 3,2)
2.8.1. Engine number
2.8.2. Removal and installation semi wedge a belt
2.8.3. Removal and installation damperа крутильных fluctuations
2.8.4. Removal and installation of a forward sealing flange crankshaftа with an epiploon crankshaftа
2.8.5. Removal and installation of a two-mass flywheel (cars from a manual transmission)
2.8.6. Removal and запрессовка the needle bearing of a two-mass flywheel (cars from a manual transmission)
2.8.7. Removal and installation of a conducted disk (cars with АКПП)
2.8.8. Epiploon replacement crankshaftа from outside a chain drive
2.8.9. Removal and installation of the left and right covers приводных chains
2.8.10. Removal and installation of the bottom cover driving chains
2.8.11. A camshaft drive
2.8.12. Removal of a chain drive from cam-shafts, removal and installation натяжителя chains
2.8.13. Removal and installation of a chain of a drive of the oil pump and балансирного a shaft
2.8.14. Removal and installation балансирного a shaft
2.8.15. Removal and installation of a cranked shaft
2.8.16. Shatunno-piston group
2.8.17. Check of a radial backlash of rods
2.8.18. Compression check
2.8.19. Removal and installation of cam-shafts
2.8.20. Replacement маслосъемных caps
2.8.21. Check of basic elements with hydrojacks
2.8.22. Check of directing plugs of valves
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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2.8.9. Removal and installation of the left and right covers приводных chains

Fig. 2.322. Covers приводных chains: 1 – M6 – 9 Нм; M8 – 20 Нм; 2 – an epiploon crankshaftа (from outside a chain drive); 3 – the adjusting plug; 4 – the bottom cover driving chains; 5 – a lining of the left head of the block of cylinders; 6 – a bolt 5 Нм + to tighten on +90 (1/4 about.); 7 – the left cover driving chains; 8 – a bolt 5 Нм + to tighten on +90 (1/4 about.); 9 – the right cover driving chains; 10 – a lining of the right head of cylinders; 11 – the adjusting plug



Removal
Remove back facing of the engine.

THE NOTE
After installation it is necessary again establish all fixing elements of cables which are removed or cut off at dismantle.

Remove forward facing of the engine.
The left cover driving chains
Turn off a broad tank of system of cooling.
Disconnect штекерный a socket of the switch of a signalling device of low level of a cooling liquid in the bottom of a broad tank and postpone a broad tank with the connected hoses 1 and 2 aside.

Fig. 2.323. Shtekernye sockets


Take electric штекерные sockets 1 and 2 of the holder (fig. 2.323).
Will put a plait of wires aside.
Turn off nuts and disconnect from a forward wall the left holder штекерных sockets.

THE NOTE
To enclose rags under the case of the oil filter, to absorb leaking engine oil.


Fig. 2.324. A cover of the case of the oil filter


Turn off a cover of the case of the oil filter (fig. 2.324).
Take a replaceable element of the oil filter.

Fig. 2.325. A collar of a hose of ventilation картера


Remove a ventilation hose картера the engine from a cover left ГБЦ (fig. 2.325).
Uncover left ГБЦ and put aside together with the connected hose of ventilation картера the engine.

All cars
Disconnect штекерные sockets.
Unscrew bolts and disconnect штекерные sockets on ignition coils.
Will put a plait of electric wires aside.

Fig. 2.327. Shtekernye sockets


Disconnect штекерные sockets 1–3 (fig. 2.327).
Unscrew a nut.
Remove the holder штекерного a socket 3.
Unscrew the hairpin located under it.
Remove the holder штекерных sockets 1 and 2.

Fig. 2.328. Fastening of the left cover driving chains


Unscrew bolts 1–8 and remove the left cover driving chains (fig. 2.328).

The right cover driving chains

Fig. 2.329. The reduktsionnyj valve


Disconnect редукционный the valve 1 from an air hose (fig. 2.329).
Remove an air hose, for this purpose loosen the a collar 2 and unblock clamps.
Take a pin распорной clip-on earrings.

Fig. 2.330. Removal of the case of the air filter


Remove the case of the air filter (fig. 2.330).

Fig. 2.331. Shtekernye sockets


Turn off nuts and disconnect from a forward wall the right holder штекерных sockets 1 and 2 (fig. 2.331).
Disconnect штекерные sockets.
Unscrew bolts and disconnect штекерные sockets on ignition coils.

Fig. 2.332. System components timing: 1 – the valve of 1 system of regulation of phases timing, release; 2 – the Hall gauge; 3 – a potentiometer заслонки an inlet collector; 4 – the gauge of the Hall 3



Will put a plait of electric wires aside.
Disconnect штекерный a socket 1.

Fig. 2.333. A shtekernyj socket


Unscrew a bolt and remove an arm штекерного a socket (fig. 2.333).

Fig. 2.334. Fastening of the right cover driving chains


Unscrew bolts 1–8 and remove the right cover driving chains (fig. 2.334).

Installation
Remove the hermetic rests on covers приводных chains and the block of cylinders (a head of the block of cylinders), for example, a rotating brush-nozzle with a plastic bristle.

THE NOTE
At return installation establish all cable couplers where they have been established initially.
For fastening of all connections of hoses use collars of a corresponding series.

ATTENTION
Watch that the hermetic rests have not got to the engine.

Clear landing surfaces; on them there should not be an oil and greasings.
Cut off a tube nouse on a forward mark (diameter an aperture about 1 mm).

THE NOTE
Covers приводных chains should be established during 5 mines after hermetic drawing.


Fig. 2.335. Hermetic packing on a landing surface of the left cover of a drive of a chain


Put the hermetic platen on a pure landing surface of the left cover driving to a chain, as is shown in drawing 2.335.
The flute of a landing surface should be filled by hermetic.
The hermetic platen should act over a landing surface on 1,5–2,0 mm.

Fig. 2.336. An order of an inhaling of bolts of fastening of the left cover driving chains


Establish the left cover driving chains and tighten bolts in sequence 1–8 (fig. 2.336).
Put the hermetic platen on a pure landing surface of the right cover driving to a chain, as is shown in drawing 2.336.
The flute of a landing surface should be filled by hermetic.
The hermetic platen should act over a landing surface on 1,5–2,0 mm.
Establish the right cover driving chains and tighten bolts in sequence 1–8 (fig. 2.334).
The further installation is carried out in return sequence.
Check up oil level.

The inhaling moments
* Replace bolts.
** 90 there correspond turn quarters.


2.8.8. Epiploon replacement crankshaftа from outside a chain drive

2.8.10. Removal and installation of the bottom cover driving chains