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. Cooling system





Fig. 2.206. The plan of connection of hoses of system of cooling: 1 – a radiator; 2 – a hose of a cooling liquid, bottom; 3 – a return hose from turbocharger; 4 – the water pump; 5 – турбонагнетатель; 6 – the thermostat of system of cooling of the engine with management on the set algorithm; 7 – an engine oil cooler; 8 – a head of the block of cylinders/blocks of cylinders; 9 – a water delivery branch pipe; 10 – a ventilating aperture; 11 – the heater heat exchanger; 12 – a bolt for air removal; 13 – a broad tank; 14 – a branch pipe of a cooling liquid; 15 – a hose of a cooling liquid, top


Fig. 2.207. The case of the distributor of a cooling liquid with the thermostat of system of cooling: 1 – a sealing ring; 2 – the case of the distributor of a cooling liquid; 3 – a sealing ring; 4 – a tube of a cooling liquid, bottom; 5 – a bolt 10 Нм; 6 – a bolt 15 Нм; 7 – a sealing cuff; 8 – connection heating резисторного an element; 9 – the tip; 10 – the thermostat of system of cooling of the engine with management on the set algorithm



ATTENTION
At opening the broad tank can leave hot steam or a hot cooling liquid. Wrap up a cover rags and cautiously open a tank.

THE NOTE
At the warm engine the cooling system is under pressure. If necessary before repair work it is necessary to dump pressure.

All connections of hoses fix collars which correspond to a serial complete set.
For Ustanovkaa of spring collars it is recommended use pincers for шланговых collars or pincers for spring collars.
And sealing rings it is necessary to replace linings.
The arrows put on the ends of tubes and hoses of system of cooling, should is against each other.


2.4.3. Check of pressure of oil and the gauge of pressure of oil

2.5.1. Removal and installation of the thermostat of system of the cooling operated on algorithm