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
   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 central air of air

Air central air is under a high pressure. Do not try to weaken any connections or to remove details of system without a preliminary discharge of system. The coolant should be removed from system in a specialised workshop (the type of a used coolant is resulted in Specifications). Even after a system discharge at performance of any operations with system use goggles.


  1. That air central air functioned regularly, it is necessary to perform following operations regularly:
    1. Check up a condition drive a belt. At detection of excessive deterioration or damages it is necessary to replace a belt (address to Section Check of a condition of ridge belts of a streaming drive of auxiliary units and the Head the Engine).
    2. Check up a condition of pipelines of system. Examine them in search of cracks, swellings and consolidations. Examine also штуцерные connections in search of traces of leaks. At detection of wear tracks, damages or leaks replace the damaged pipeline.
    3. Examine a surface of the heat exchanger located before a radiator of system of cooling. At detection of pollution of edges, insects, etc. clear a surface of the heat exchanger a special brush or compressed air.
    4. Be convinced of that the drainage tube of the evaporator is not littered. At the included conditioner from this tube should exude pure water. For check of cleanliness of a tube enclose under the evaporator a sheet of paper and include the conditioner. After some period of time on sheet there should be water traces.

At use of compressed air use goggles.

  1. Include the conditioner at least once a month (even in the winter). If not to use the conditioner long time, it can lead to an exit of consolidations out of operation.
  2. Owing to complexity of system diagnostics and repair should be carried out on a car repair shop.
  3. Most a plausible reason of decrease in an overall performance of system is the coolant lack. If you have noticed sharp decrease in an overall performance of system, check up quantity of a coolant in system as follows.
  4. Warm up the engine to working temperature.
  5. The switch choose the lowest temperature of submitted air. Include the greatest speed of the fan. Open doors (that the system was not switched off after achievement of the demanded temperature in salon).
  6. At inclusion of its compressor муфта should publish heard click, and the central part муфты — to rotate. Touch inlet and a compressor exhaust pipe. One of them should be cold, another — hot. If you do not feel a difference, the system is faulty. It can be caused as a coolant lack, and something another. For malfunction elimination address on HUNDRED.