Audi A4, S4

Since 2000 of release

Repair and car operation



Audi A4, S4
+ Introduction
+ Controls and receptions of safe operation
+ Current leaving and service
+ The engine
+ Systems of cooling, heating and the air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
+ Systems of an electric equipment of the engine
+ Manual box of a gear change
+ Automatic transmission
+ Coupling, power shafts and differential
- Brake system
   Specifications
   Removal of air from brake system
   Removal and installation of lobbies brake колодок
   Removal and installation колодок brake mechanisms of back wheels
   Check of a thickness of a brake disk
   Removal and installation of a brake disk/support
   Adjustment of a lay 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



Removal and installation of lobbies brake колодок

Support FN-3

By means of illustrations, find out execution of the support established on your car.

Forward brake mechanisms FN3

1 — the Cover of a brake disk
2 — the Screw, 10Нм
3 — the Brake hose. At replacement brake колодок not to turn on.
4 — the Holder. Fastens to the support case
5 — the Bolt, 10Нм
6 — Spring скоба
7 — the Brake pipeline, 15Нм. It is rolled in the case of a support and incorporates to a brake hose. Thus it is necessary to keep for шестигранник a brake hose. Watch reliable position of lock pads in grooves of the holder
8 — the Socket of the gauge of deterioration. At replacement brake Pads it is taken out from the holder (4)
9 — the Bolt with a gear fillet, 190Нм. At repeated application clear teeths.
10 — Directing. Fastens to the case of the bearing of a wheel
11 — Brake Pads
All are necessarily replaced four Pads one axis. Instructions: Internal колодка has an arrow. The arrow should specify in a direction of rotation of a brake disk at car movement forward. At wrong installation can lead to noise occurrence.
External brake Pads have on return plates a sticky film. The protective film before installation колодок is necessary for removing.

At achievement of corresponding deterioration (2 – 3 mm) on the panel of devices light up a control lamp. Pay attention to various executions brake колодок (the catalogue of spare parts). Before installation new колодок the support is necessary for clearing carefully. On directing surfaces колодок it is necessary to apply a thin film литиевой greasings G 052 142 A2 firms AUDI.
12 — the Lock spring. It is inserted into apertures of the case of a support. Instructions: After installation the lock spring is necessary for pressing into apertures under the directing. At wrong installation deterioration external Pads can not be compensated that will lead to increase in a course of a pedal of a brake
13 — the Brake disk. Both brake disks of one axis are necessarily replaced. For removal it is necessary to disconnect only a support
14 — the support Case. For replacement brake колодок disconnect from the directing
15 — the Directing finger, 25Нм
16 — the Cover
Instructions: All bolts located outside and screws have a sheeting.

Removal

 PERFORMANCE ORDER

  1. Mark on the tyre a direction of its rotation. Turn away bolts of fastening of a wheel. Lift and establish on supports a forward part of the car and remove a wheel.

Necessarily observe instructions in Section In case of emergency.

If brake Pads will be established again it is necessary to mark them at removal. Change by places external and internal brake колодок, and also their shift with right on the left wheel is not supposed. All is obligatory brake Pads forward wheels are replaced simultaneously even if deterioration limit has reached brake колодка one party.

  1. Remove covers (arrows on an accompanying illustration) from both directing fingers.
  1. Disunite a socket (1) indexes of deterioration brake колодок in the presence of the last. Turn on 90 a lock lath of the bottom part of the tip.
  1. Take out the bottom part of the tip from the holder.
  1. Hook a screw-driver and take out from an aperture (the marksman on an accompanying illustration) a lock spring brake Pads.
  1. Turn out from a support both directing fingers.
  1. Remove the case of a support and fix its wire to a suspension bracket.

Do not suppose a tension of a brake hose.

  1. Remove external brake колодку from the directing.
  2. Take out internal brake колодку with a spring from the brake piston.

Installation

At removed brake колодках do not press a brake pedal, otherwise the piston can be squeezed out from the case. In this case a support remove in the complete set and ask it to insert into place on HUNDRED.

 PERFORMANCE ORDER

  1. Before installation колодок into place check up palpation by fingers a brake disk. In the presence of flutes a disk it is possible to pierce (work HUNDRED) if it still allows a thickness.
  2. Measure a thickness of a brake disk, address to corresponding Section.

To disk clearing apply exclusively spirit. Directing surface and landing places колодок in case mine clear a rag. Do not apply for this purpose the tool with sharp edges. Special attention turn on removal of the rests of a sticky film on adjoining surfaces external brake колодок.

  1. Check up duster the piston on presence of cracks. Damaged duster immediately replace, since проникшая the dirt quickly leads to loss of tightness of a support. Thus it is necessary to assort a support (work HUNDRED).

At the big deterioration brake Pads check up ease of a piston stroke. For this purpose insert into a support wooden брусок and ask the assistant to press a brake pedal slowly. The piston should leave and enter easily. For check other support should be established. Watch that the piston completely has not been squeezed out. At a heavy piston stroke hand over a support in repair on HUNDRED. Press the piston the tool shown on an accompanying illustration.

It can be made also by means of wooden бруска (the hammer handle). Thus watch that the piston not to warp the piston and not to damage a piston surface, and also duster.

At piston cave-in the brake liquid is squeezed out from the brake cylinder in the tank. Watch a liquid in the tank, if necessary, suck away a liquid by means of a siphon.

  1. For отсасывания a brake liquid apply a plastic bottle which is intended only for this purpose. Do not apply for this purpose a bottle for a drinking liquid! The brake liquid is poisonous and should not be sucked away by a mouth through a hose at all. Apply for this purpose a siphon. At replacement brake колодок level of a brake liquid in the tank should not exceed mark MAX since the liquid at heating extends. The following liquid gets on the main brake cylinder, destroys its covering and results corrosion.
  2. Before installation new brake колодок carefully clear them and grease with a thin layer литиевой greasings G 052 142 A2.
  1. Insert internal brake колодку with about a lock spring into the brake piston.


    1 — Internal brake колодка the right wheel
    2 — Internal brake колодка the left wheel

Internal brake колодка (has a spring) it is supplied by an arrow. The arrow should specify in a direction of rotation of a brake disk at car movement forward. Incorrect installation (on other party of the car) can lead to noise occurrence.

  1. Remove a protective film from a return plate external brake Pads.
  1. Establish external колодку on the directing.
  2. Establish into place the case of a support and fix it on directing two directing fingers the moment 25Нм.
  3. Establish into place both covers of fingers.
  1. Insert a spring into the support case.

After installation the lock spring is necessary for pressing into apertures under the directing. At wrong installation deterioration external Pads can not be compensated that will lead to increase in a course of a pedal of a brake.

  1. Fix wheels, observing a direction of rotation of wheels. Lower the car on wheels and only after that tighten fastening bolts cross-wise the moment 120Нм.

Some times standing strongly press a brake pedal so that to feel resistance. Thus brake Pads adjoin to a disk and occupy the working position.

  1. Check up a brake liquid in the tank, if necessary, add a liquid to mark MAX.
  2. Cautiously allow to be earned extra new brake колодкам. For this purpose some times brake the car since speed 80 till the speed of 40 km/hour, without pressing strongly a brake pedal. Between braking allow to a brake to be cooled.

After installation new brake Pads it it is necessary to earn extra. For this purpose the first 200 km of a way do not apply without need sharp braking.

In some regions brake Pads should be utilised as a special material. Local authorities should give the necessary information on points of possible recycling.

Attention, carry out reliability control:

- Whether brake hoses are fixed?

- Whether the brake hose in the holder is fixed?

- Whether unions for air removal are tightened?

- Whether enough of a brake liquid is filled in?

- On the working engine check up tightness. For this purpose press a brake pedal effort 200 – 300 Н (20 – 30 kg) during 10 with. The pedal should not weaken. Check up all joinings on tightness.

Support FNR-G60

By means of an illustration find out execution of the support established on your car. In the present subsection differences from support FN-3 are considered only.

Forward brake mechanisms FNR-G60

1 — Brake колодка. Are necessarily replaced all 4 Pads one axis. Check up ease of a course of a support by its lateral displacement. Internal колодка with a spring has a cable for the deterioration gauge. At achievement of corresponding deterioration (2 – 3 mm) on the panel of devices light up a control lamp. Before installation new brake колодок carefully clear a support. Apply a thin film литиевой greasings G 052 142 A2 on directing surfaces колодок. At installation connect a cable of the gauge of deterioration
2 — Directing
3 — the Bolt with a gear fillet, 1 90Нм. At repeated application clear teeths
4 — the Plug. It is inserted into the support case
5 — the Directing finger, 30Нм
6 — the Cover
7 — the Brake disk. Necessarily it is necessary to replace both disks of one axis. For removal preliminary disconnect a support. Adjoining surfaces between a brake disk and a wheel nave grease with greasing G 052 142 A2.
8 — Bolts of fastening of a wheel, 120Нм
9 — Joining of the brake pipeline, 12Нм

10 — the Brake pipeline. It is rolled in the case of a support and incorporates to a brake hose. Thus the hose is necessary for keeping from проворачивания for шестигранник. The hose as a result of installation should not be braided. Watch correct position of lock pads in grooves on the holder
11 — Joining of the brake pipeline to a support, 19Нм
12 — the Holder. Fix to the support case. Attach the brake pipeline
13 — the Bolt, 25Нм
14 — the support Case. For replacement brake колодок disconnect from directing and fix a wire on a suspension bracket
15 — the Lock spring. It is inserted into apertures of the case of a support. Instructions: After installation the lock spring is necessary for pressing into apertures under the directing. At wrong installation deterioration external Pads can not be compensated that will lead to increase in a course of a pedal of a brake

Removal

 PERFORMANCE ORDER

  1. Fix a brake disk one bolt of fastening of a wheel (the marksman on an accompanying illustration).
  1. Hook a screw-driver and remove from the support case a lock spring brake колодок.
  2. Disunite turn a socket of the index of deterioration brake колодок, pull upwards and disconnect an electric wire.
  3. Disconnect a brake hose from the holder.
  1. Remove covers and turn out both directing fingers.
  1. Remove the case of a support and fix its wire to a suspension bracket.
  2. Take out колодку from the case of a support or remove from the directing.

Installation

 PERFORMANCE ORDER

  1. Insert brake колодку with a lock spring and the deterioration index into the support case.
  1. Insert into a support internal (1) and external (2) brake Pads and establish together on directing and a brake disk.
  1. Fix the case of a support with fingers on directing the moment 30Нм. Watch that the brake hose was not braided. Establish covers of fingers.
  1. Fix the tip of the index of deterioration and fix a wire in the holder.

Support С54

By means of an illustration find out execution of the support established on your car. In the present subsection differences from support FN-3 are considered only.

Forward brake mechanisms S54

1 — the Cover of a brake disk
2 — the Screw, 10Нм
3 — the Brake hose. At replacement brake колодок it is not disconnected
4 — Spring скоба
5 — the Brake pipeline, 15Нм. Screw in the case of a support and connect to a brake hose. Thus keep a hose for шестигранник from проворачивания. Watch correct position of lock laths in grooves on the holder
6 — the Bolt self-stopped, 30Нм. A bolt necessarily replace. At отворачивании and an inhaling keep directing finger
7 — the Bolt with a gear fillet, 190Нм. At repeated application clear teeths
8 — Directing with directing fingers and a protective cap. The spare part, is delivered together with greasing on a directing finger

9 — the Brake disk. Both disks of one axis are necessarily replaced. For removal preliminary disconnect a support
10 — the Heat-shielding guard. It is inserted into the piston
11 — the support Case. For replacement brake колодок it is disconnected from the directing. The brake hose is not disconnected
12 — the Holder. It is fixed on the support case
13 — the Bolt, 10Нм
14 — Brake Pads. Are necessarily replaced all 4 Pads one axis. At achievement of corresponding deterioration (2 – 3 mm) on the panel of devices light up a control lamp. Before installation new колодок necessarily carefully clear a support. On directing surfaces колодок apply a thin film greasings G 000 650
15 — the Socket of the index of deterioration brake колодок. At replacement колодок take out from the holder (16)
16 — the Holder

Removal

 PERFORMANCE ORDER

  1. Disunite turn a socket of the index of deterioration brake колодок, pull upwards and disconnect an electric wire.
  1. Turn away bolts from the support case, thus keeping from проворачивания directing fingers.
  1. Cast away upwards the case of a support and take out upward brake Pads.

Installation

 PERFORMANCE ORDER

  1. Establish into place brake Pads.
  2. Lower downwards the case of a support and tighten new bolts of fastening by the moment 30Нм.

In the repair complete set there are 4 self-stopped bolts.