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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2.8.2. Removal and installation semi wedge a belt

Fig. 2.301. Contour components semi wedge a belt: 1 – полиwedge a belt; 2 – a bolt 30 Нм; 3 – a bolt 22 Нм; 4 – the generator; 5 – a casing of a directing roller; 6 – a directing roller semi wedge a belt; 7 – a bolt 20 Нм; 8 – a pulley of a belt drive for the water pump; 9 – a bolt 9 Нм; 10 – the water pump; 11 – a casing натяжителя; 12 – натяжитель semi wedge a belt; 13 – a bolt 20 Нм; 14 – a bolt 20 Нм; 15 – an arm of the pump of the hydraulic booster of a wheel; 16 – a bolt 20 Нм; 17 – the pump of the hydraulic booster of a wheel; 18 – a bolt 20 Нм; 19 – a pulley of a belt drive of the pump of the hydraulic booster of a wheel; 20 – a bolt 20 Нм; 21 – a bolt 25 Нм; 22 – the conditioner compressor; 23 – the adjusting plug; 24 – an arm of the compressor of the conditioner; 25 – damper крутильных fluctuations



Removal

Fig. 2.302. Forward facing of the engine


Remove forward facing of the engine (fig. 2.302).
Unscrew bolts.

Fig. 2.2. An air line


Remove air lines 1 and 2 (fig. 2.2).

Fig. 2.44. Bolts of an exhaust pipe of an independent additional heater


On cars with an independent heater unscrew bolts of an exhaust pipe of an independent / additional heater on шумоизоляционном the screen (fig. 2.44).

Fig. 2.45. Fastening of a forward noise isolation


Turn off clamps 1 and 2 and remove forward шумоизоляционный the screen (fig. 2.45). Back шумоизоляционный the screen remains established.
Remove facing of a forward bumper.
Result a radiator framework in service position.

THE NOTE
Before removal semi wedge a belt mark a direction of a course with a chalk or a felt-tip pen. Change of a direction of a course before a maintained belt can lead to its damage.


Fig. 2.303. Tension easing semi wedge a belt


For easing semi wedge a belt move натяжитель in an arrow direction (fig. 2.303).
Remove полиwedge a belt and unload натяжитель.

Installation
Installation is carried out in return sequence,

Fig. 2.304. A contour semi wedge a belt: 1 – the generator; 2 – a directing roller; 3 – the water pump; 4 – the pump of the hydraulic booster of a wheel; 5 – the conditioner compressor; 6 – натяжитель semi wedge a belt; 7 – a cranked shaft


Establish полиwedge a belt on pulleys how it is shown in drawing 2.304.

THE NOTE
At installation semi wedge a belt watch correct position on pulleys.

Establish a framework of a radiator with hinged details.
Get the engine and check up a belt course.
Establish facing of a forward bumper.


2.8.1. Engine number

2.8.3. Removal and installation damperа крутильных fluctuations