Audi A4, S4

since 2000 of release

Repair and car operation


Audi A4, S4
+ Introduction
+ Governing bodies and receptions of safe operation
+ Current leaving and service
+ Engine
+ Systems of cooling, 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
   Specifications
   Air removal from brake system
   Removal and installation of forward brake shoes
   Removal and installation of blocks of brake mechanisms of back wheels
   Check of thickness of a brake disk
   Removal and installation of a brake disk/support
   Adjustment of the parking brake
   Removal and installation of the switch of a stoplight
   Removal and installation of a brake hose
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

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Specifications

Separate characteristics are provided also in the text of Head and in case of obligation of their performance are allocated with a bold print

General parameters

Characteristic

Value

Design

Hydraulic, double-circuit with diagonal division and the vacuum amplifier. Electronic protivozanosny system (stability stabilization - ESP), the amplifier of emergency braking (BAS) and system of anti-blocking of brakes (ABS)

Brake mechanisms

The disk

Forward supports

FN3, С54 or FNR-G60

Back supports

С38 or С43

Forward brake mechanisms

Characteristic

Value

General thickness of brake shoes, mm

14

Limit of wear of slips, mm

2–3

Diameter of a brake disk, mm

    FN3

288

    С54

280

    FNR-G60
323

Thickness ventilated brake a disk/limit of wear, mm

    FN3
25/23
    С54
22/20
    FNR-G60
30/28

Thickness integral brake disk/limit of wear, mm

    FN3
15/13
    С54
13/11

Back brake mechanisms

Characteristic

Value

General thickness of brake shoes, mm

    С38

17 (16)

    С43

17.5

Limit of wear of blocks, mm

    С38

7

    С43
8

Diameter of a brake disk, mm

    С38
245 (255)
    С43
300

Thickness of a brake disk, mm

    С38
10 (12)
    С43
20

The parking brake, with a drive on back wheels

Diameter of the vacuum amplifier, mm

Efforts of a tightening of carving connections, H · m

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

*vydelenny in the text a bold print the moments of a tightening are subject to exact observance; the efforts not allocated with a bold print are given only roughly

Characteristic

Value

Support forward to a bracket

    Teves FN3

25

    Lucas C54

30

Two-piston support

25

FNR-G60 support

30

Support back to a bracket

35

Bracket to a nave of a forward wheel

190

Bracket to a nave of a back wheel

75

Back plate to a nave of a back wheel

10

ABS sensors

10

Bolts of wheels

120