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
2.5.1. Removal and installation of the thermostat of system of the cooling operated on algorithm
2.5.2. Check of the thermostat of system of the cooling operated on algorithm
2.5.3. Removal and installation of the water pump
2.5.4. Опрессовка cooling systems
2.6. Injection system
2.7. System of release of the fulfilled gases
2.8. A mechanical part (petrol engines 3,0; 3,2)
2.9. 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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2.5.1. Removal and installation of the thermostat of system of the cooling operated on algorithm

Removal

Fig. 2.43. Mass cable АКБ


Disconnect a mass cable from АКБ at the switched off ignition (fig. 2.43).

Fig. 2.54. An engine casing


Remove an engine casing (fig. 2.54).
Open a cover of a broad tank of system of cooling.

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


In cars with an additional heater unscrew bolts of an exhaust pipe of an independent additional heater from шумоизоляционного the screen (fig. 2.44).

Fig. 2.45. Fastening of a forward noise isolation


Loosen the quick disconnect муфты 1 and 2 also remove a forward noise isolation (fig. 2.45).
Merge cooling liquid.

Fig. 2.208. An electric socket of the gauge of pressure of oil


Disconnect an electric socket of 1 gauge of pressure of oil (fig. 2.208).
In addition disconnect a water hose from below on a water pipe 2 and merge remained ОЖ.

Fig. 2.209. Adsorber extraction


Take an absorber with the connected hoses upwards in a direction from an arm from put aside (fig. 2.209).

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

Mark a course direction semi wedge a belt.

Fig. 2.64. Easing semi wedge a belt


For easing semi wedge a belt turn tension damper (fig. 2.64).
Fix a tension element with the help a clamp.
Remove поликлиновый a belt.

Fig. 2.100. Tension damper semi wedge a belt with a pendant pad of the engine


Remove tension damper semi wedge a belt with a pendant pad of the engine (fig. 2.100).
Remove the generator.
Disconnect an electric socket of 1 wire electromagnetic муфты the conditioner compressor.

Fig. 2.67. Fastening of the compressor of the conditioner and штекерный a wire socket


Turn off the compressor of the conditioner from an arm (fig. 2.67).

Fig. 2.210. A water hose


Disconnect a water hose 2, having taken out фиксаторную bracket 1 (fig. 2.210).

Fig. 2.101. Bolts of fastening of an arm of additional units


Turn off fastening of an arm of additional units – bolts 1–6 (fig. 2.101).
Disconnect an electric socket 1.

Fig. 2.211. Thermostat fastening


Remove the thermostat of system of the cooling operated on algorithm (fig. 2.211).

Installation
Installation is carried out in return sequence.

THE NOTE
Replace a sealing ring of round section.

Clear or process a sealing surface under a sealing ring of round section.
Moisten a new sealing ring of round section with cooling liquid G12 +.
Establish an arm of hinged units.
Fill in cooling liquid.
Establish the generator.
Establish the conditioner compressor.
Establish полиwedge a belt.
Connect the storage battery.

The inhaling moments
The thermostat to the block of cylinders: 15 Нм.
Arm of additional units to the block of cylinders: 45* Нм.
Натяжитель semi wedge a belt to an arm of additional units: 23 Нм.
* Establish on a carving varnish.


2.5. Cooling system

2.5.2. Check of the thermostat of system of the cooling operated on algorithm