Audi A3

Since 1997 of release

Repair and car operation



Audi A3
+ The maintenance instruction
- Current leaving and service
   The routine maintenance schedule
   The general information on adjustment
   Check of levels of liquids, the control of leaks
   Check of a condition of tyres and pressure in them
   Replacement of impellent oil and the oil filter
   Check of a gear belt of drive ГРМ on presence of damages, deterioration measurement
   Check of brake system
   Check of fuel system
   Rotation and replacement of wheels. Chains противоскольжения
   Check of a condition and replacement of hoses of an impellent compartment, localisation of leaks
   Check of functioning of system of cooling
   Check of a condition of system of release of the fulfilled gases
   Visual check of tightness of a box of a gear change
   Check of a condition of components of a suspension bracket and steering
   Check of a condition of protective covers of power shafts
   Greasing of clamps of doors and the lock cylinder
   Condition check, adjustment and replacement of brushes of screen wipers
   The visual control of a seat belt and the block of a pillow of safety
   Check of a condition of the battery, care it and gymnastics
   Level check трансмиссионного oils РКПП
   Replacement of the filter of air of salon
   Replacement of a filtering element of the air filter
   Replacement of a brake liquid
   Check and replacement of spark plugs
   Replacement of the fuel filter of the diesel engine
   Check of level of a liquid of system of hydrostrengthening of a wheel
   Check of level of a liquid of the main transfer of automatic transmission
   Oil replacement in coupling Haldex of models with a full drive
   Condition check drivers ridge belts
   Level check трансмиссионной liquids АТ
+ The engine
+ Systems of cooling, heating
+ The power supply system and release of the fulfilled gases
+ Engine electric equipment
+ Manual box of a gear change
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electroschemes





Check of functioning of system of cooling

THE GENERAL DATA

Hoses, also as well as приводные belts, have property to fail at the most inappropriate moment – in order to avoid the troubles connected with rupture of hoses of a radiator or a heater, attentively examine them, as is shown in drawing

 

Check of functioning of system of cooling and frost resistance of a cooling liquid

PERFORMANCE ORDER
1. Many gross infringements in engine work are connected with malfunctions of system of cooling. If the car is equipped by automatic transmission its functioning and service life also directly are connected with work of system of cooling.
2. Check of system of cooling should be made at the cold engine, therefore is better be engaged in it before the first trip for a present day or not earlier than in three hours after engine deenergizing.
3. Slowly, being careful in case the engine has not absolutely cooled down yet, uncover a radiator. Carefully wash out it from within and outside of pure water. Also wash out a jellied mouth of a radiator. Presence of traces of corrosion in a jellied mouth means that it is necessary to replace a cooler (address to subsection Replacement of a cooling liquid). The cooler in a radiator should be rather pure and transparent. If it has brownish colour, drain system and fill in in it a new cooler.
4. Carefully check up radiator hoses, and also hoses of a heater which have smaller diameter. Check hoses of system of cooling on all length, making replacement of any burst, blown up or worn out hose. Cracks are easier for finding out if to compress a hose a hand. Will pay special attention on the collars keeping hoses on components of system of cooling. These collars can cut or pierce hoses that will lead to cooler leak.
5. Make sure of reliability of fastening of all шланговых connections. Cooler leaks are usually shown in the form of white or rusty colour of adjournment in the field of hermetic sealing infringement. If on your car collars of wire type it is possible are used, there is a sense to replace them with collars of screw type.
6. By means of compressed air or a soft brush clear a forward part of a radiator (and also the condenser of the conditioner of air, there, where it is available). Remove all insects, leaves and the other extraneous subjects which have got on edges of a radiator. Be very cautious not to damage an edge and not to cut about them fingers.
7. If cooler level constantly falls, and you have not found out any leaks, it is necessary to make check by pressure of a cover of a radiator and all cooling system.
Check of frost resistance of a cooling liquid

ATTENTION

Do not suppose antifreeze hit on your skin and the painted surfaces of the car. At hit immediately wash off a plentiful quantity of water. Antifreeze is extremely toxic and mortally dangerous at hit in an organism. Do not leave antifreeze in the open container or spilt on a floor; its sweetish smell can easily involve in itself children or pets. Consult about local rules of recycling of the fulfilled antifreeze. In many areas there are special centres on its acceptance.


Before the beginning of a winter season it is necessary to check up necessarily concentration of antifreeze in a cooling liquid, especially if in system pure water was while in service filled in.
The demanded special tool:

– A frost resistance measuring instrument. There is also an optical device for check of level HAZET № 4810.

Demanded operational materials and spare parts:

— With a protection frame from corrosion G12 (red colour, the designation G 012 А8D agrees TLAUDI 774 D) and pure, not containing to exhaust antifreeze water.
Check
8. Slightly warm up the engine so that the top hose of a radiator has heated up. At measurement of concentration of antifreeze the liquid temperature should make nearby +20С.
The remark on security measures

At the hot engine the stopper of a broad tank should be opened cautiously. There is a danger of a burn! It is necessary to put a rag on a stopper. A stopper open only at temperature of a liquid no more + 90С.
9. Cautiously turn away a stopper of a broad tank.
10. Type a liquid by means of a pear ареометра.
11. In our widths the concentration of antifreeze providing protection of system to temperature-25S is sufficient, at especially frigid climate to-35S.
Antifreeze addition
In need of protection of the engine to temperature-25S concentration of antifreeze in a cooling liquid should make 40 %. In need of protection to temperature-35S concentration of antifreeze should make 50 %.

ATTENTION

If higher degree of protection against freezing is required, it is possible to raise level of concentration of antifreeze to 60 %. Such concentration will provide protection to-40S. If concentration raises to higher level, degree of protection of the engine starts to go down and, besides, heat-removing properties of a cooler worsen.


At cars to chassis number 8LVA006233 (a date of issue approximately till the end of 1996) is serially applied antifreeze of cooling liquid G11–ABC or any other antifreeze with a mark agrees TL–VW 774 C. He can be learnt on green colour.
Since chassis number 8LVA006234 antifreeze AUDI G12 is serially applied. To system filling it can be applied G12 or any other antifreeze with a mark it agree TL–VW 774 D. Antifreeze G12 has red colour.

ATTENTION

G11 And G12 it is not supposed to mix. It can lead to heavy damages of the engine. (Mix G11 and G12) it is necessary to replace cooling liquid of brown colour immediately.

The engines intended for use G11, can be translated on modified antifreeze G12.


12. Close a stopper on a radiator and after a trial trip again check up concentration of antifreeze, thus address to Specifications.
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