Audi A4, S4

Since 2000 of release

Repair and car operation



Audi A4, S4
+ Introduction
+ Controls and receptions of safe operation
- Current leaving and service
   Specifications
   The indicator of term of approach of maintenance 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. A designation of tyres and disks of wheels. Rotation and replacement of wheels
   Replacement of impellent oil and the oil filter
   Checks of brake system. Adjustment of a lay brake
   Check of fuel system
   Check of a condition and replacement of hoses of an impellent compartment, localisation of leaks
   Check of a condition of ridge belts of a streaming drive of auxiliary units
   Check of functioning of system of cooling and frost resistance of a cooling liquid
   Check of a condition of system of release of the fulfilled gases
   Check of level of oil of automatic transmission
   The visual control of a box of a gear change and the main transfer on leaks, check of level and oil addition
   Check of a condition a suspension bracket and steering component
   Check of a condition of protective covers of power shafts
   Check of level of a liquid of system of hydrostrengthening of a wheel
   Check of a central air of air
   Greasing of terminators of doors, cylinders of locks, cowl hook, сдвижной panels of the hatch of a roof
   The visual control of a seat belt and the block of a pillow of safety
   Check of working capacity of headlights and horn
   Condition check, adjustment and replacement of brushes of screen wipers
   Check of a condition of the battery, care it and gymnastics
   Replacement of the battery of emergency supply of system Telematik
   Replacement of an element of the filter of air of salon / the coal filter of clearing of air
   Replacement of a brake liquid
   Check and replacement of spark plugs. Check of a condition of high-voltage wires
   Replacement of an element of the air filter of the engine
   Replacement of the fuel filter
   Check of a condition and tension of a gear belt
+ The engine
+ Systems of cooling, heating and the air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
+ Systems of an electric equipment of the engine
+ Manual box of a gear change
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



Check of a condition of tyres and pressure in them. A designation of tyres and disks of wheels. Rotation and replacement of wheels

Depending on model and equipment tyres and disks of the various sizes can be established. Disks have depth запрессовки 38 mm. Depth запрессовки is a distance from the middle of a disk to a persistent surface of a wheel on a brake disk or a drum. Bolts of a wheel for steel and легкосплавных disks have the identical sizes.

At installation легкосплавных disks of other manufacturers bolts of other sizes can be demanded.

The technics is continuously improved. Probably that for older models other values of pressure in tyres are admissible. The sizes specified in documents to the car are defining.

At a sports manner of driving it is recommended to increase pressure in forward and back tyres on 0.2 атм. At pressure increase it is necessary to start with a base-line value for various conditions of loading.

Winter tyres as a rule have pressure on 0.2 атм. Above than summer. It is necessary to consider recommendations of manufacturers of winter tyres.

As winter tyres have restriction on speed, in sight of the driver the tablet with instructions of the maximum speed should be strengthened.

Designations of disks

Example: 6 J х 15

6 — width of a disk in inches

J — a letter designation of height and a contour onboard закраины disk rims

х — a designation of an integral deep disk

15 — diameter of a disk in inches

Admissible lateral palpation on onboard закраине a disk: 0.8 mm;

Admissible radial palpation on a landing shelf of a disk: 0.5 mm.

Designation of tyres

Example: 195/70 R 14 89 H

195 — width of the tyre in mm

/70 — the relation of height to width (the height of cross-section section of the tyre makes 70 % from width)

If separate data on the relation of width to height are absent (for example, 175 R 14), means it is a question of "the normal" relation. It makes 82 %.

Н — a class of speed, Н: to 210 km/h (on new tyres it is resulted not always).

R — a radial design

14 — the size of a disk in inches

89 — load-carrying capacity parametre

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

Н — a designation of admissible maximum speed.

The letter of speed stands up for in the size of the tyre. Symbols of speed concern as 6.6 Indicators of deterioration of a protector of the tyre to depth of 1.6 mm are in the places designated on sidewall TWIк summer, and to winter tyres.

Letter designations of speed are resulted in Specifications.

Date of manufacturing of the tyre

Date of manufacturing of the tyre costs on the tyre in a code of the manufacturer

Example:

DOT CUL2 UM8 019 TUBELESS

DOT — Department of Transportation (the Ministry of Transport of the USA)

CU — reduction of the name of the manufacturer

L2 — The size of the tyre

UM8 — Tyre execution

4600 — manufacturing date - 46th working week 2000

TUBELESS — бескамерная (TUBETYPE - the tyre with the chamber)

Regular check of a condition of tyres will allow you to avoid the troubles connected with stops in a way because of the lowered wheel. Besides, such checks give the valuable information on possible problems with a steering and a suspension bracket before occurrence in them of serious damages.

Tyres are equipped by the built in strips of indication of deterioration of a protector which are bared at decrease in depth of a protector to 1.6 mm then tyres are considered worn out. This size represents is minimum admissible depth of a protector; the tyres, which depth of a protector of 2 mm and less in most cases is recommended to replace. Depth of a protector also can be defined by means of the simple and inexpensive adaptation known under the name of a measuring instrument of depth of a protector.

Pay attention to any unusual deterioration of protectors. Such defects of a protector as cavities, cambers, уплощения and stronger deterioration on the one hand specify in infringement of corners of installation of forward wheels and-or wheel balancing. At revealing any of the listed defects it is necessary to address for their updating in шиномонтажную a workshop.

Carefully check the tyre on presence of cuts, punctures and got stuck nails or buttons. Sometimes after протыкания tyres a nail it still some time holds pressure or lowers very slowly.

At suspicion on presence such «a slow puncture» at first check up tightness of a nipple of the gate of a rating. Then examine a protector on presence of the got stuck strangers of subjects or the punctures repaired earlier again passing air. If there is a suspicion that there is a puncture, to make sure of its presence it is possible, having moistened a suspected site with soap water. In the presence of leak the solution will start to bubble. If not too big, the tyre it is usually possible to repair a puncture in any шиномонтажной a workshop.

Carefully examine internal lateral surfaces of tyres on presence on them of signs of leak of a brake liquid. If those are available, immediately check up brake system.

Maintenance in tyres of correct pressure increases term of their service, helps to save fuel and improves the general comfort of movement. The special manometre is necessary for pressure check.

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

Always check pressure upon cold tyres (i.e. to a trip on the car). If to check pressure on warm or разогретых tyres, it will lead to overestimate of indications of a manometre because of thermal expansion of tyres. In this case never it is necessary to lower pressure since after cooling of the tyre it will appear below norm.

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 manometre 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 a dirt and a moisture. Check up pressure in all four tyres and if necessary pump up them to the recommended value of pressure.

Do not forget to support demanded pressure and in a spare wheel.

Check of pressure of air in tyres

Check of pressure of air should be spent only on cold tyres.

Turn away a gate cap.

Pressure of air in tyres is checked once a month, and also at service carrying out (including spare a wheel).

Besides, pressure of air are necessary for checking before each long trip since temperature loading on tyres in this case increases.

Necessary pressure of air in tyres is resulted on a label which is on an inside of a cover of a fuel tank.

At application of winter tyres pressure of air should be increased on 0.2 атм. In relation to the established value.

Pressure of air of narrow tyres of a spare wheel is specified on sidewall a disk.

Pressure of air in tyres changes depending on change of temperature of air on 10°С approximately on 0.1 атм. It should be considered at monitoring procedure of pressure of air in tyres in garage — especially in the winter.

Example:

Temperature in garage nearby + 20°С

Temperature of external air nearby 0°С

Established pressure of air in tyres = the specified pressure of air + 0.2 атм.

Values of pressure of air in the tyres, resulted for small loading of the car, are the minimum values providing comfortableness of movement.

Air elevated pressure in the tyres, provided at the raised loading of the car, positively affects controllability of the car as well at small loading and is quite admissible. Smoothness качения thus, however, decreases a little.

Check of the gate of tyres

Applied extension pieces of gates should be checked up on presence of damages and the pollution conducting to негерметичности. If necessary it is necessary to replace extension pieces.

The gate of tyres
1 both 2 — Rubber and metal caps
3 — the Gate
4 — the gate Case

 PERFORMANCE ORDER

  1. Turn away a protective cap and the extension piece.
  2. Put on the gate a small amount of a soap solution or a saliva. If the air vial is formed, tighten the gate 3 protective cap 2.

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

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

Examples of characteristic deterioration of protectors of tyres

Lateral deterioration

Insufficient pressure in the tyre 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 road and to excessive deterioration of a protector, not to mention danger of an exit of the tyre out of operation as a result of an overheat. Check up and adjust pressure.

Wrong disorder of wheels (deterioration on the one hand)

Repair or replace suspension bracket details.

Too sharp turns

Reduce speed!

The central deterioration

Superfluous pressure

Superfluous pressure in the tyre leads to the accelerated deterioration of the central part of a protector, decrease in coupling with road, to more rigid movement and increase of danger of fatal damage of a slope.

Check up and adjust pressure.

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

Non-uniform deterioration

Tyres of forward wheels can non-uniformly wear out as a result of infringement of adjustment of corners of installation of wheels.

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.

Edges Obtrepannost of a pattern of the protector, being a deterioration sign, is better comes to light to the touch.

Rotation of wheels

Rotation of wheels is authorised only at the identical size of forward and back wheels.

Rotation of wheels make depending on deterioration of tyres each 5000-10000 km. Thus keep a direction of rotation of wheels.

Rotation is necessary for making before occurrence of characteristic signs of deterioration of tyres. A characteristic sign of deterioration at tyres of forward wheels is deterioration of a humeral zone of a protector, and at tyres of back wheels — the protector middle.

At each rotation of wheels it is necessary to clear carefully them from the inside. After rotation of wheels check up and if necessary modify pressure of air in tyres (see above).

Bolts of fastening of wheels can ослабнуть if they have not been tightened with the moment of an inhaling specified in Specifications. After replacement of wheels check up the inhaling moment.

Spare wheel of the facilitated design

At tyre damage the spare wheel of the facilitated design can be used as a normal wheel; it is recommended to replace as soon as possible, however, with its normal wheel as it is calculated on the limited run as much as possible to 20 000 km.

At replacement of tyres the tyre of a spare wheel can be mounted on the driving wheel if the tyre corresponds to execution of tyres of driving wheels. If the tyre is more senior 6 years, it is recommended to be applied only at tyre damage.

There is a danger of failure! If the spare wheel of the facilitated design owing to the various sizes of tyres it is necessary to reckon with change of dynamic properties of the car is mounted. Conform style of driving to the given situation.

It, therefore, is provided only for short-term use, at observance of the ordered pressure of air in tyres and the maximum speed of 80 km/h.

Operation with more, than one spare wheel of the facilitated design is inadmissible.

Replacement of wheels

The automobile jack is intended only for short-term lifting of the car at wheel replacement.

The basic platform of an automobile jack should be firm and equal. In case of a friable ground use a lining for an automobile jack.

Under the car it is necessary to apply to work подставные goats.

 PERFORMANCE ORDER

  1. Put the car, whenever possible, on an equal platform. Strongly press a pedal of a lay brake. It is impossible to release a lay brake while the car is lifted.
  2. Selector AT lever translate in position «Р». Protect the car from spontaneous откатывания, having enclosed противооткатные an emphasis, etc.
  3. On equal road: enclose an emphasis under диагонально the located wheel in front and behind.
  4. On liftings and descents: enclose an emphasis under both wheels of other bridge in a downward direction on descent.
  5. From the complete set of the onboard tool take out a key for wheels.
  6. Loosen the bolts of fastening of wheels a key, but yet do not turn out them completely.
  7. Uncover an aperture for installation of an automobile jack. Apertures for installation of an automobile jack are behind arches of forward wheels and before arches of back wheels.
  8. Basic finger of a jack completely move into an aperture for jack installation. The automobile jack should stand always vertically — as well on slopes.
  9. Lift the car to a separation of a wheel from a ground.
  10. For prevention соскальзывания the car a basic finger of a jack completely (against the stop) insert into an aperture for jack installation on the car.
  1. Turn out the top bolt of fastening. Aligning pin from the complete set of the onboard tool screw in in a carving aperture. Other bolts for fastening of wheels turn out. Do not put bolts of fastening of wheels on sand or in a dirt.
  1. Remove a wheel.

Bolts of fastening of wheels

 PERFORMANCE ORDER

  1. Replace bolts of fastening of the wheels, having damages or rust traces.
  2. Do not oil bolts or консистентной greasing. In case of damage of a carving to a wheel nave to continue movement it is impossible. It is necessary to address on HUNDRED.
  3. Make surface clearing прилегания wheels and naves.
  4. Spread and press a wheel.
  5. Screw bolts of fastening of a wheel and slightly tighten.
  6. Unscrew aligning pin and screw last bolt of fastening of a wheel.
  7. Lower the car. Remove an automobile jack and establish a cover on an aperture for jack installation.
  8. In regular intervals cross-wise tighten all bolts of fastening of a wheel. The inhaling moment is specified in Specifications.

There is a danger of failure! Bolts of fastening of wheels can ослабнуть if they have not been tightened with the demanded moment. Therefore necessarily check up the inhaling moment right after replacements of wheels.

Before packing of an automobile jack in an additional compartment under a trunk floor turn a basic finger of a jack back almost to a support.

Check up and, if necessary, modify pressure of air in tyres.