Audi A4, S4

since 2000 release

Repair and operation of the car



Audi A4, 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
+ Manual box of gear shifting
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
- Suspension bracket and steering
   Security measures at work
   + Suspension bracket of forward wheels
   + Suspension bracket of back wheels
   + Corners of installation of wheels of the car
   + Steering and safety cushions
+ Body
+ Onboard electric equipment






Suspension bracket and steering

Specifications

Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type

General parameters

Characteristic

Value

Base of wheels, mm

2650

Track of forward (back) wheels, mm

1528 (1526)

Minimum diameter of a turn, m

11.1

Forward suspension bracket

Characteristic

Value

Design

Independent, 4-lever, McPherson's racks with gas-filled shock-absorbers. Stabilizer of cross stability. Aluminum and steel elements are applied

Back suspension bracket

Characteristic

Value

Design

Independent, with the trapezoidal lever and separately installed shock-absorbers. Aluminum and steel elements are applied

Steering

Characteristic

Value

Design

Rack, with the hydraulic booster. A steering column - safety, telescopic, with adjustment of an inclination

Power steering liquid

 G 002 000

Corners of installation of wheels

Characteristic

Value

Forward wheels

  • Convergence

0 °20 '±4' (2.28±0.46 mm)

  • Divergence of wheels at turn on 20 °

1 °30 '±30'

  • Disorder (is not regulated)

- 0 °30 '±25' (-0 °47 '±25' on models with a sports suspension bracket)

  • The maximum difference between the parties

0 °30'

Back wheels

The convergence (is regulated)

0 °30 '±10' (3.42±1.14 mm)

Disorder (is regulated)

- 1 °10 '±30'

The maximum difference between the parties

0 °30'

Side play of a steering rack and gear wheel of the steering mechanism, mm

0.04 – 0.08

Efforts of a tightening of threaded connections, Nanometer

The moments of a tightening of fixture are given also in the text of the Head and on some illyustratsiyakh*.

* The moments of a tightening highlighted in the text in bold type are subject to exact observance; the efforts which are not highlighted in bold type are given only approximately.

Characteristic

Value

SUSPENSION BRACKET OF FORWARD WHEELS

Nave

  • M14 bolts

115nm + 180 °

  • M16 bolts

190nm + 180 °

SUSPENSION BRACKET OF BACK WHEELS

Nave

Models with engines of 1.6 l

  • M14 bolts
115nm + 180 °
  • Bolts M16 1
90nm + 180 °

All other models

  • Reception 1
190nm on a poddomkrachenny wheel
  • Reception 2
Lower the car on the earth and hold on on 180 °
  • Reception 3
Hold on for 90 °

STEERING

Steering wheel

50

Nuts of tips of steering drafts

  • Petrol engines
45
  • Diesel engines
50

Lock-nuts of tips of steering drafts

40

Bolts of wheels

120












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