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
   Specifications
   Removal and installation of the top cover of the engine / lower protection of a motive compartment / stretcher
   Check of a compression in engine cylinders, identification of leaks
   Check of the engine by means of the vacuum gage
   - 4-cylinder petrol engines
      General information
      Removal and installation of a gear belt
      Removal and installation of a head of cylinders
      Removal and installation of a belt of the drive of auxiliary units
   + 6-and 8-cylinder petrol engines
   + 4-cylinder diesel engines
   + 6-cylinder diesel engines
   + engine Lubrication system
+ 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

Removal and installation of a belt of the drive of auxiliary units

Scheme of laying of a belt of the drive of auxiliary units. 4-cylinder petrol engine

1 — Bolts, 25nm
2 — the Semi-automatic device of a tension of a gear belt
3 — Klinova a belt
4 — Bolts, 25nm
5 — the Holder of the generator, pump of the power steering and compressor of the conditioner
6 — Bolts, 40nm
7 — the Generator
8 — Screws, 20nm
9 — the Screw, 40nm
10 — the Bolt, 20nm

11 — the power steering Pump
12 — Bolts, 40nm
13 — the conditioner Compressor. At installation watch the directing plugs in openings
14 — Bolts, 20nm
15 — the Wheel of a cranked shaft. Installation is possible only in one situation: the adjusting opening of a wheel has to be over a ledge on a wheel of a gear belt
16 — Bolts with a fillet, 10nm + 90 °. Surely replace. Attention: It is allowed to apply only original bolts
17 — the Directing roller. It is fixed on the holder of the generator, pump of the hydraulic booster and the conditioner compressor
18 — the Special bolt of the directing roller, 25nm

Removal

PERFORMANCE ORDER

Mark with chalk or a felt-tip pen the direction of rotation on a maple belt.

Change of the direction of rotation of the belt which was already in work can lead to its break.

Incline the tension device for weakening of a maple belt in the direction of an arrow on an accompanying illustration A.

Fix the tension device T10060 mandrel (an arrow on an accompanying illustration B).

Take off maple a belt.

Installation

PERFORMANCE ORDER

Check, whether all units (the generator, the compressor, the pump) are reliably installed.
Put on maple a belt according to a tag of the direction of rotation.
At cars with the conditioner in the last turn put on a belt the compressor.
Incline the tension device in the direction of an arrow (In) a little and take out a lock finger (And). After that slowly return the tension device to a starting position. Thus check, whether the belt on pulleys correctly lies.
Start the engine and let's it work on single turns. Visually check a belt.