Audi A4, S4

since 2000 release

Repair and operation of the car

Audi A4, S4
- Introduction
   About this Management
   Audi A4/S4 cars - the summary
   Identification numbers of the car
   Acquisition of spare parts
   Technology of service, tool and equipment of a workplace
   Poddomkrachivaniye and towage
   Start of the engine from the auxiliary battery
   Automobile chemicals, oils and greasings
   Diagnostics of malfunctions
+ 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
+ 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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Audi A4/S4 cars - the summary

A4 of the second generation appeared in the market in November, 2000 performed by the Sedan. Year later in the market there were Versatile Person (AVANT) and Cabriolet (Cabrio) models. The sports option was presented in 2002.

The body of A4 of the second generation increased in comparison with the predecessor: on length on 69 mm (4547 mm), on width on 33 mm (1766 mm), and on height on 13 mm.

A4 is equipped with a totality of security aids. A basis of safety of passengers is the strong section of salon with certain characteristics of deformation. Also safety cushions of the driver and the forward passenger, and also lateral head safety cushions of Sideguard and the device of a tension of a belt for forward seats belong to security aids. The electronic antistrange system (stabilization of course stability), and also the amplifier of the emergency braking is serially installed.

Completely galvanized body, with a 10-year guarantee on lack of corrosion, represents the bearing steel structure with the built-in aluminum components providing weight reduction of the car. As materials, for additional weight reduction of the car, high-strength steel sheets, plastic and magnesium are applied.

Petrol engines - line four-cylinder or V-shaped six-cylinder (eight-cylinder on the S4 models) with electronic control.

Diesel engines - line four-cylinder or V-shaped six-cylinder.

All engines with water cooling and an arrangement in a motive compartment along the car.

Models with the forward or full Quattro drive are issued. On all-wheel drive models the interaxal differential of "Torsen" with automatic blocking is established.

The modified running gear from an aluminum alloy provides high dynamic characteristics and accuracy of driving.

Depending on a complete set either 6-staged RKPP, or AT is established completely synchronized 5-(Tiptronic with the dynamic program of switching of DSP or Multitronic with the dynamic program of regulation of DPR).

Forward suspension bracket – independent, four-lever McPherson with screw springs, telescopic gas-filled shock-absorbers and a tubular bar of the stabilizer. The beam of the bridge fastens to a body on rubber-metal support.

Independent suspension bracket of back wheels with screw springs and gas-filled shock-absorbers. The beam of the bridge fastens to a body on rubber-metal support.

The steering mechanism – rack, with coefficient of strengthening of the hydraulic booster (Servotronic), dependent on speed. Adjustable, safety steering column.

The car is equipped with the electronic antistrange system (stability stabilization - ESP) uniting system of anti-blocking of brakes (ABS), antiprobuksovochny system (ASR), electronic blocking of differential (EDS) and the distributor of brake efforts (EBV) in a uniform network. The amplifier of the emergency braking (BAS) is installed.

Basic brake system – hydraulic, double-circuit with diagonal division and the dual amplifier. System of anti-blocking of brakes (ABS) with electronic distribution of brake forces (EBV) with the vacuum amplifier.

Brake mechanisms - disk, ventilated on forward wheels.

The uniform lock with direct or remote control is used to locking of locks.

The closest term of approach of planned maintenance is displayed by the indicator on the display.

Information system of the driver is installed as the standard equipment.

Magnificent aerodynamics and use of light materials promoted decrease in fuel consumption. Thanks to high-strength steel and additional protective elements, and also development of big zones of deformation, the previous model ensures still big safety, than.