Audi S4

since 2000 release

Repair and operation of the car



Audi S4
+ Introduction
+ Governing bodies and methods of safe operation
+ Current leaving and service
+ Engine
+ Cooling systems, heating and air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
- Systems of electric equipment of the engine
   + System of ignition and engine management
   + System of preheat of the diesel engine
   + Diagnostics of systems of electronic control and diagnostic equipment
   - Systems of charging and start
      General information
      The rechargeable battery - the main data and acquisition of the new battery
      Check and charging of the rechargeable battery
      Replacement of the rechargeable battery
      Storage of the rechargeable battery
      System of charging - general information and security measures
      Check of system of charging
      Removal and installation of the generator
      Removal and installation of the regulator tension/replacement of brushes
      System of start of the engine - the general information and precautionary measures
      Removal and installation of a starter
      Check of system of start of the engine
+ Manual box of gear shifting
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


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Storage of the rechargeable battery

If the car was not used more than two months, the rechargeable battery needs to be removed and charged. Optimum temperature of storage of the battery makes from 0 to +27 °C. At these temperatures a battery self-discharge minimum. It is necessary to charge the battery at least once in two months, otherwise it becomes useless.

The battery which was not used a long time (for example, the car was not operated), is discharged and, besides, can sulfatirovatsya. If such battery is charged with the device for bystry charging, she does not perceive charging current or owing to sulphation becomes too quickly "completely" loaded. Actually the battery is damaged.

Before defining the battery as damaged it is necessary to check the following:

  1. Electrolyte density. If the difference between density in separate sections does not exceed 0.04 g/ml, then it is necessary to charge the battery with the normal charger.
  2. After charging check the battery under loading. If characteristics of the battery are lower provided in Specifications, the battery is damaged.
  3. If electrolyte density in one or in two next sections considerably differs (for example, in five sections of 1.16 g/ml, and in the sixth 1.08 g/ml) the battery has short circuit and it needs to be replaced.