Audi A3

since 1997 of release

Repair and car operation



Audi A3
+ Maintenance instruction
- Current leaving and service
   Schedule of routine maintenance
   General information on control
   Check of levels of liquids, control of leaks
   Check of a condition of tires and pressure in them
   Replacement of impellent oil and oil filter
   Check of a gear belt of a drive of GRM on existence of damages, wear measurement
   Check of brake system
   Check of fuel system
   Rotation and replacement of wheels. Antisliding chains
   Check of a condition and replacement of hoses of an impellent compartment, localization of leaks
   Check of functioning of system of cooling
   Check of a condition of system of production of the fulfilled gases
   Visual check of tightness of a box of gear shifting
   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 lock cylinder
   Condition check, adjustment and replacement of brushes of screen wipers
   Visual control of a seat belt and safety cushion block
   Check of a condition of the battery, care of it and charging
   Check of level of the RKPP transmission oil
   Replacement of the filter of air of salon
   Replacement of a filtering element of the air filter
   Replacement of brake liquid
   Check and replacement of spark plugs
   Replacement of the fuel filter of the diesel engine
   Check of level of liquid of system of hydrostrengthening of a wheel
   Check of level of liquid of the main transfer of automatic transmission
   Oil replacement in coupling of Haldex of models with a full drive
   Check of a condition of driving ridge belts
   Check of level of the AT transmission liquid
+ Engine
+ Systems of cooling, heating
+ the Power supply system and production of the fulfilled gases
+ engine Electric equipment
+ Manual box of gear shifting
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Elektroskhema







Check of a condition of tires and pressure in them

GENERAL INFORMATION

Indicators of wear of a protector of the tire to depth of 1.6 mm are in the places designated on боковине by TWI

Check of pressure of air in tires

Gate of tires

1 both 2 – rubber and metal caps
3–gate
4–gate case

PERFORMANCE ORDER
1. UDI depending on model and equipment can have tires and disks of the various sizes. Disks have depth of a press fitting of 38 mm. Depth of a press fitting is a distance from the disk middle to a persistent surface of a wheel on a brake disk or a drum.
Wheel bolts for steel and light-alloy wheels have the identical sizes.

ATTENTION

At installation of light-alloy wheels of other producers bolts of other sizes can be demanded.

The equipment constantly develops. Can be so that for older models other values of pressure in tires are admissible. The sizes specified in documents to the car are defining.


2. At a sports manner of driving it is recommended to increase pressure in lobbies and back tires by 0.2 bar. At increase in pressure it is necessary to start with a base-line value for various conditions of loading.
3. Winter tires as a rule have pressure upon 0.2 bar higher than summer. It is necessary to consider recommendations of manufacturers of winter tires.
4. As winter tires have restriction till speed, in sight of the driver the plate with the indication of the maximum speed should be strengthened.
Designations of disks

Example of 6 J x 15:

6 width of a disk in inches
J alphabetic reference of height and contour onboard закраины disk rims
x designation of a unicomponent deep disk
15 diameter of a disk in inches

Admissible lateral palpation on onboard закраине a disk: 1.2 mm;
Admissible vertical palpation on the landing shelf of a disk: 0.8 mm.

Designation of tires

Example: 195/70 R 14 89 H

195 width of the tire in mm
/70 the relation of height to width (the height of cross-section section of the tire makes 70 % from width)
If hotel data on the relation of width to height are absent (for example, 175 R 14), mean are a question of the "normal" relation. It makes 82 %.
N class of speed, N: to 210 km/h (on new tires it is brought not always).
R radial design
14 size of a disk in inches
89 parameter of loading capacity


ATTENTION

If between data 14 and 89 there is M+S designation, it is a question of tires with a winter protector.


N designation of admissible maximum speed.
The letter of speed stands up for in the size of the tire. Symbols of speed belong both to summer, and to winter tires.

Alphabetic references of speed

Q 160 H 210
S 180 V 240
T 190 W 270

Date of manufacturing of the tire

Date of manufacturing of the tire costs on the tire in a code of the producer

Example: DOT CUL2 UM8 of 019 TUBELESS

DOT Department of Transportation (Ministry of Transport of the USA)
CU reduction of the name of the manufacturer
L2 size of the tire
UM8 tire execution
01 dates of manufacturing – the 01st working week 1999
TUBELESS tubeless (TUBETYPE – the tire with the chamber)

5. Regular check of a condition of tires will allow you to avoid the troubles connected with stops in a way because of the lowered wheel. Besides, such checks give valuable information on possible problems with a steering and a suspension bracket before emergence in them serious damages.
6. Tires are equipped with the built-in strips of indication of wear of a protector which are bared at decrease in depth of a protector to 1.6 mm then tires are considered as the worn-out. This size represents minimum admissible depth of a protector; it is in most cases recommended to replace the tires, which depth of a protector of 2 mm and less. It is also possible to determine depth of a protector by the simple and inexpensive adaptation known under the name of a measuring instrument of depth of a protector.
7. Pay attention to any unusual wear of protectors. Such defects of a protector as cavities, cambers, uploshcheniye and stronger wear on the one hand indicate violation of corners of installation of forward wheels and/or wheel balancing. At identification any of the listed defects it is necessary to address for their adjustment in a shinomontazhny workshop.
8. Carefully check the tire on existence of cuts, punctures and got stuck nails or buttons. Sometimes after a tire protykaniye a nail it still some time holds pressure or lowers very slowly.

At suspicion on existence such “a slow puncture” at first check tightness of a nipple of the gate of a rating. Then examine a protector on presence at it got stuck strangers of subjects or closed up before the punctures which have started over again to pass air. If there is a suspicion that there is a puncture, to make sure of its existence it is possible, having moistened a suspected site with soap water. In the presence of leak solution will start to bubble. If not too big, the tire it is usually possible to repair a puncture in any shinomontazhny workshop.
9. Carefully examine internal lateral surfaces of tires on existence of signs of leakage of brake liquid on them. If those are available, immediately check brake system.
10. Maintenance in tires of the correct pressure increases term of their service, helps to save fuel and improves the general comfort of movement. The special manometer is necessary for check of pressure.

ATTENTION

Always keep an exact manometer in the ware box. Indications of the manometers which have been built in nozzles of air hoses at stations of service, often happen inexact.


11. Always check pressure on cold tires (i.e. to a trip on the car). If to check pressure on the warm or warmed-up tires, it will lead to overestimate of indications of a manometer because of thermal expansion of tires. In this case never it is necessary to lower pressure since after tire cooling it will appear lower than norm.
12. Screw together a protective cap from the gate of a rating acting from a disk of a wheel or from a cap of a nave, then densely press to the gate a manometer nozzle. Consider instrument readings and compare them with recommended in Specifications. Do not forget to establish into place a protective cap for hit prevention in the mechanism of a nipple of dirt and moisture. Check pressure in all four tires and if necessary pump up them to the recommended value of pressure.
13. Do not forget to support demanded pressure and in a spare wheel.
Check of pressure of air in tires
14. Check of pressure of air should be carried out only on cold tires.
15. Unscrew a gate cap.
16. Pressure of air in tires is checked once a month, and also at carrying out service (including spare a wheel).
17. Besides, pressure of air are necessary for checking before each long trip since temperature load of tires in this case increases.
18. Necessary pressure of air in tires is given on a sticker being on inside of a cover of a fuel tank.

ATTENTION

At use of winter tires pressure of air should be increased by 0.2 bar in relation to the established value.


19. Pressure of air of narrow tires of a spare wheel is specified on боковине a disk.
Check of the gate of tires

ATTENTION

Applied extension pieces of gates should be checked on existence of damages and the pollution conducting to a leakage. If necessary it is necessary to replace extension pieces.


20. Unscrew a rubber protective cap and metal.
21. Put on the gate a small amount of soap solution or a saliva. If the air vial is formed, tighten an insert the 3rd protective cap 2.

ATTENTION

It is necessary to apply only a protective cap to pulling up of the gate 2. 1 rubber protective caps, 4th gate.


22. Again check the gate. If there are vials and the gate it is not possible to tighten, it it is necessary to replace (work HUNDRED).
23. Surely again establish into place a protective cap.

Examples of characteristic wear of protectors of tires


Lateral wear

Insufficient pressure in the tire leads to its overheat at movement owing to an excessive deflection therefore the protector does not nestle sufficiently on a road surface. It leads to loss of coupling with the road and to excessive wear of a protector, not to mention danger of an exit of the tire out of operation as a result of an overheat.

Check and adjust pressure.

Wrong disorder of wheels (wear on the one hand)

Repair or replace suspension bracket details.

Too sharp turns

Reduce speed!

Central wear

Superfluous pressure

Superfluous pressure in the tire results in the accelerated wear of the central part of a protector, decrease in coupling with darling to more rigid movement and increase of danger of fatal damage of a slope.

Check and adjust pressure.

If you had to pump up tires for transportation of heavy cargoes to specified for this purpose in Specifications of value of pressure, do not forget after that to pit it upon transition to a normal mode of operation.

Non-uniform wear

Tires of forward wheels can non-uniformly wear out as a result of violation of adjustment of corners of installation of wheels. To check and adjust corners of installation it is possible for a moderate payment in the majority of shinomontazhny workshops.

Wrong disorder or выбег

Repair or replace suspension bracket details.

Defect of a suspension bracket

Repair or replace suspension bracket details.

Wheels are debalanced

Make balancing of wheels.

Convergence of forward wheels is incorrectly established

Adjust corners of installation of forward wheels.
ATTENTION

the obtrepannost of edges of a pattern of the protector, being a wear sign, best of all comes to light to the touch.


Turn out a stopper for removal of impellent oil on the pallet of a case and completely merge oil