Audi A4

since 1994 release

Repair and operation of the car


A4 Audi
- Running gear
   Protection of passengers
   Full zinc covering
   Full drive
   Concepts of the all-wheel drive
   Distributive torsen-differential
   Dynamics of the movement on the dry road
   Maintenance instructions of quattro cars
   Mechanism of blocking of differential
   Additional works on maintenance
   Motive compartment
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
+ Cooling system
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
+ System of injection
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ body Details
+ Salon
Search of malfunctions
Technical characteristics



Motive compartment

74 kW four-cylinder engine

1 – accumulator;
2 – cable of a butterfly valve;
3 – brake amplifier;
4 – a broad tank with brake fluid;
5 – a broad tank with cooling liquid;
6 – electronic block;
7 – a tank with hydraulic oil for a servoupravleniye;
8 – a tank with liquid for washing of glasses; 9 – hydraulic module of system of anti-blocking;

10 – the probe for measurement of level of oil;
11 – generator;
12 – engine cover;
13 – oil-filling branch pipe (engine oil);
14 – cover of a gear belt;
15 – measuring instrument of a stream of fresh air;
16 – case of the air filter;
17 – the electromagnetic valve of capacity with the coal filter (ventilation of a fuel tank).

92 kW four-cylinder engine

1 – accumulator;
2 – cable of a butterfly valve;
3 – brake amplifier;
4 – a broad tank with brake fluid;
5 – the broad block with cooling liquid;
6 – electronic block;
7 – a tank with liquid for washing of glasses;
8 – a tank with hydraulic oil for a servoupravleniye;

9 – hydraulic module of system of anti-blocking;
10 – generator;
11 – the probe for measurement of level of oil;
12 – oil-filling branch pipe (engine oil);
13 – engine cover;
14 – measuring instrument of a stream of fresh air;
15 – case of the air filter;
16 – the electromagnetic valve of capacity with the coal filter (ventilation of a fuel tank).

110 kW four-cylinder engine

1 – accumulator;
2 – brake amplifier;
3 – a broad tank with brake fluid;
4 – a broad tank with cooling liquid;
5 – electronic box;
6 – a tank with liquid for washing of glasses;
7 – a tank with hydraulic oil for a servoupravleniye;
8 – hydraulic module of system of anti-blocking;

9 – control unit of a butterfly valve;
10 – the probe for measurement of level of oil;
11 – cable of a butterfly valve;
12 – oil-filling branch pipe (engine oil);
13 – engine cover;
14 – the terminal cascade of power of ignition (under it the case of the air filter with the integrated measuring instrument of a stream of fresh air);
15 – electromagnetic valve of the coal filter (ventilation of a fuel tank).

128 kW six-cylinder engine

1 – electromagnetic valve of the coal filter (ventilation of a fuel tank);
2 – accumulator;
3 – the electromagnetic valve for switching of the register soaking-up pipeline;
4 – brake amplifier;
5 – a broad tank with brake fluid;
6 – a broad tank with cooling liquid;
7 – electronic box;
8 – a tank with hydraulic oil for a servoupravleniye;
9 – a tank with liquid for washing of glasses;
10 – hydraulic module of system of anti-blocking;

11 – vacuum box of system of adjustment of speed;
12 – the switching inlet collector;
13 – package of coils of ignition;
14 – fuel pressure regulator;
15 – oil-filling branch pipe (engine oil);
16 – the measuring instrument of a stream of fresh air (it is built-in only in engines with a working volume of 2,8 l);
17 – the terminal cascade of power of system of ignition (under it the case of the air filter).